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Onkyo TX-NR818

7.2-channel home theater receiver, Internet-ready

47 Reviews | 1 question - 11 answers

Item # 580TXN818

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Our take on the Onkyo TX-NR818

Onkyo's TX-NR818 home theater receiver is an audio and video workhorse. Its THX® Select2 Plus™ badge of certification means it can reproduce riveting, accurate movie sound that'll have you glued to your TV screen. You also get the latest surround sound options, including Dolby® TrueHD and DTS-HD™ Master Audio, two high-resolution formats found on many Blu-ray movies. The 'NR818 uses Onkyo's WRAT (Wide Range Amplifier Technology) and a high-current power supply to deliver dynamic, punchy sound that stays clean even at higher volume levels.

3D TV Learn more

Onkyo's TX-NR818 home theater receiver is an audio and video workhorse. Its THX® Select2 Plus™ badge of certification means it can reproduce riveting, accurate movie sound that'll have you glued to your TV screen. You also get the latest surround sound options, including Dolby® TrueHD and DTS-HD™ Master Audio, two high-resolution formats found on many Blu-ray movies. The 'NR818 uses Onkyo's WRAT (Wide Range Amplifier Technology) and a high-current power supply to deliver dynamic, punchy sound that stays clean even at higher volume levels.

Amazing video quality is at the dual core

The 'NR818 boasts two fantastic video processors that work together to deliver superlative images. The HQV® Vida™ circuit upscales analog content to 1080p. And the Marvell Qdeo™ chip adds a crisp finish to the signal. Eight HDMI inputs — including one in front for easy access — let you connect all your high-def equipment. Plus there's ISF (Imaging Science Foundation) video calibration to dramatically improve picture quality. Each video input source is independently calibrated to achieve the best possible performance from your connected HDTV. And let's not forget that there are two HDMI outputs to connect to your TV and projector. But movies, video games and TV are just the beginning.

Ready to entertain you

Just plug your iPod® into the front-panel USB port to get the beat started. This connection delivers a digital signal directly to the 'NR818's superior processor so your music sounds awesome. Use the Ethernet port or the optional Onkyo Onkyo UWF-1 Wi-Fi adapter to connect the 'NR818 to your broadband home network and you'll get easy access to the music files stored on your networked computers. Then dive into thousands of Internet radio stations — so you can enjoy entertainment from every corner of the planet. Your potential playlist just expanded exponentially. Want more? You also gain the ability to stream music from Internet services like Pandora® Internet radio, Spotify®, Sirius/XM® Internet radio, Rhapsody® and more (may require registration and subscription fees).

What would you like to do with seven channels?

Most home theater setups are 5.1-channel, but the 7.2-channel TX-NR818 offers ways to experience even greater wraparound realism. You can drive a pair of back surround speakers placed in the rear of your room to create greater spatial accuracy: get ready to duck when a mortar round screams overhead and explodes behind you. Or use those channels for "height" speakers, so when the incoming rounds start to fall, you may want to take cover. If your front speakers have dual sets of connectors, you can re-assign these two channels and "bi-amp" the speakers — doubling the power they receive is a great way to get every last ounce of performance from them. Or there's always the convenience of using those surround channels to play music on the deck speakers while the kids continue uninterrupted gaming in the theater room.

User-friendly features

The 'NR818 comes equipped with Audyssey® sound-shaping tools to automatically balance and equalize the sound based on your room's acoustics. Audyssey Dynamic Volume maintains optimum dynamics, so gone are the commercial sponsor's surprise sonic attacks. Onkyo's InstaPrevue™ system lets you see thumbnails of digital video sources on-screen, taking out the guesswork of which HDMI source is plugged into what port. You also get a graphic user interface to make control easy and intuitive with overlays on your TV screen. And you can download a free app to use your iPhone® and Android™ devices as powerful Wi-Fi® system remotes.

Learn about the ins and outs of HDMI connections at the Crutchfield Learning Center.
Shop our selection of HDMI cables.


    Power and Processing:
    • 7-channel amplifier
    • 135 watts per channel into 8 ohms (20-20,000 Hz) at 0.08% THD, with 2 channels driven
    • THX® Select2 Plus™ certification guarantees pristine home theater sound
    • Dolby® TrueHD, DTS-HD™ Master Audio, Dolby® Digital Plus, DTS-HD™ High Resolution Audio and Dolby Pro Logic® IIz
    • Audyssey DSX® processing for enhanced surround sound height or width effects using additional front speakers
    • dual core analog-to-HDMI video upconversion (up to 1080p) with HQV® Vida3and Marvell Qdeo™ video processing
    • ISF (Imaging Science Foundation) video calibration for each video source (calibration requires an ISF-certified technician)
    • Audyssey MultEQ® XT32 eight-point auto setup and room calibration system (microphone included)
    • Audyssey Dynamic Volume™ mode to maintain steady listening levels
    • Audyssey Dynamic EQ™ for fuller surround sound at lower volumes
    Digital Music Options:
    • direct digital connection of iPod®/iPhone® through front-panel USB input allows music control via receiver's remote
    • DLNA (Digital Living Network Alliance) certified to ensure optimal compatibility with other network-enabled equipment
    • Wi-Fi ready, requires optional Onkyo UWF-1 adapter
    • Internet streaming capabilities for Internet radio, Spotify®, SIRIUS/XM® Internet radio, Pandora® Internet radio, Rhapsody® and more (may require registration and subscription fees)
    • Bluetooth integration (requires optional optional Onkyo adapter)
    Multi-room Audio:
    • three-room/three-source output:
      • powered audio output for 2nd or 3rd room (using powered 2nd room stereo output allows 5.1 home theater in main room)
      • line-level stereo audio output for 2nd and 3rd room
    Audio Performance Features:
    • high-current amplifier design
    • 192kHz/24-bit Burr-Brown digital-to-analog converters for all channels
    • Pure Audio mode switches off unnecessary circuitry to provide cleaner sound
    • back surround speaker channels re-assignable for bi-amping compatible front left and right speakers
    • Music Optimizer function enhances the sound quality of compressed music files
    • detachable power cord
    • 1080p-compatible HDMI switching: 8 in (including 1 front-panel input), 2 out
    • HDMI version 1.4 with support for 3D video, Audio Return Channel, Deep Color, x.v.Color, auto lip-sync, and HDMI-CEC
    • Audio Return Channel function receives digital audio signals from a compatible HDTV's tuner via HDMI
    • digital audio inputs: 2 optical and 3 coaxial
    • analog audio/video inputs:
      • 5 inputs with composite video (1 front-panel)
      • component video switching with 2 inputs, 1 output
    • 3 audio-only inputs, including a phono input for hooking up a turntable
    • Ethernet port for music streaming from a PC network
    • preamp outputs for 2 powered subwoofers
    • 1 pair of main speaker outputs
    General features:
    • convenient on-screen display (via HDMI only)
    • 40 AM/FM presets
    • multibrand remote
    • Onkyo's free remote app lets you use your iPod touch®, iPhone® or Android™ device as a Wi-Fi remote
    • 17-1/8"W x 7-13/16"H x 18-1/4"D
    • weight: 40.3 lbs.
    • warranty: 2 years
    • Our 60-day money-back guarantee

    What's in the Box:

    • Dolby Digital/DTS 7.1ch AV receiver
    • 6' AC power cord
    • Wireless remote control (RC-840M)
    • 2 "AA" batteries
    • Audyssey microphone (with attached 19.5' cable terminated by a 3.5mm connector)
    • AM loop antenna
    • FM wire antenna (with push-on "F" connector)
    • Instruction Manual (CD-ROM)
    • Quick Start Guide (En/Fr/Sp)
    • Product registration card/Warranty information
    • RIHD-compatibility note
    • Safety Information
    • Sheet of adhesive labels
    • Important Notice Regarding Software
    • "How to open the flap" note

    Great Receiver, does everything I want. High Quality. Awesome sound!!!!

    CouchPotato, Swansea, IL


    Onkyo TX-NR818 Reviews

    Average Customer Review(s):

    (47 Reviews)

    Onkyo 818

    Eric from Hampton, VA on 1/28/2017

    My wife purchased this receiver for me 3 years ago as a Christmas gift. Crutchfield had it on sale at the time because of a newer model replacing this one. My prior receiver was a Kenwood which was an outstanding one that I had for about 14 years. I knew it was time for an upgrade and Onkyo was the receiver of choice. I must say this is the best sounding receiver I've ever heard. It took my speakers to a whole new level. The picture quality is outstanding also and watching blu-ray 3D is magical. The sound did go out after having it for two years. I contacted Crutchfield and the were very helpful. The put me in touch with the Onkyo website. Onkyo was very helpful also as they told me they would repair it for free although it was out of warranty. They sent a box to my home so I could mail my unit to them, postage paid by Onkyo, repaired my unit and had it back to me in 9 days. The receiver is working better than ever over a year later. I'm very happy with this receiver and plan on keeping it for a very long time due to its very high quality. For the dollar, best receiver you can buy.

    Pros: Outstanding sound and picture

    Cons: Two year sound bug

    Fantastic receiver

    Nathan from Utah on 8/25/2014

    Crutchfield Customer Review (What's this?)

    Best bang for the buck I've ever had in a receiver before. 7.2 channels expandable to 9.2 with external amplifier. The sound is fantastic. Also love the Audyssey MultEQ XT32. It may be 2 years old, but it still holds up well against todays receivers minus HDMI 2.0 and features such as Dolby Atmos. For the price, nothing else comes close.

    Pros: Sound quality is excellent Many options for sound configuration processing up to 9.2 channels with external amp. Audyssey MultEQ XT32 room calibration Plethora of inputs Video processing looks great. Upscale any input to 1080 HDMI.

    Cons: Runs a bit hot. May contribute to reports of HDMI board failure. No Audyssey SubEQ No video out on Zone 2. On the large size. Doesn't fit in my entertainment center.

    Great Receiver

    CouchPotato from Swansea, IL on 8/1/2014

    Crutchfield Customer Review (What's this?)

    Great Receiver, does everything I want. High Quality. Awesome sound!!!!

    Pros: Easy to use, Great Sound, Lots of Inputs and Outputs, High Quality, Blows away my old Yamaha.

    Cons: None

    Great Product

    Rob from Washington DC on 1/25/2014

    Crutchfield Customer Review (What's this?)

    Overall, a great receiver.

    Pros: Excellent Sound, heavy duty, well-built, access to net apps like Pandora

    Cons: No bluetooth or wireless built in. Onkyo UWF-1 wireless adapter is worthless, making ethernet connection your only practical choice for internet connectivity.

    Excellent Quality, not for beginners.

    rodtice from Senoia on 1/18/2014

    Crutchfield Customer Review (What's this?)

    The sound of this receiver is clearly several steps above my current Sony 1010, I really puts out a pure signal to my DefTech 8080 system. What it doesn't excel at is simplicity. If your willing to put the time in to tweak the system literally over weeks, its a great system. You can use the the Audyssey MultEQ® XT32 and get 90% but the last 10 does take a while.

    Pros: Great power, excellent quality of build and sound.

    Cons: Not simple, needs a backlit remote

    Onkyo TX-NR818

    sjstereo from michigan on 1/16/2014

    Crutchfield Customer Review (What's this?)

    Surround set-up is a snap and sound is great. Not so easy to set-up and use multi-channel zones. Remote is near useless for second room use -- blew out ceiling speakers as the sound level was inadvertantly set too high, even though system cap of 70% was set. Was trying to get set quickly for holiday parties and did not take the time to read the 150+ page manual to learn intricacies. Once the remote apps were loaded, it was much easier to control volume and net radio selections in sevond zone. The net link for both wired and wifi went out...could not find an eay fixin the manual. Tech support suggested unplugging the system for 5 seconds and that did the trick. Nice selection of net radio whrn the links are working. Lots of options with this system, though it is now discontinued. Hear the relacement models offer less, so happy i got it when i did. Tech help at Crutchfield is phenominal, worth any small premium you may have to pay. Onkyo help was okay, but not as friendly. I am a huge fan of Crutchfield and will look there first for any future needs.

    Pros: Multi-channel speaker and zone options Easy speaker surround set-up Lots of inputs Net Radio Selections Android and iPhone apps make it easier

    Cons: No HDMI pass thru when power is off Manual is download only Zone control from remote lacking Controls, remote, display not intuitive without reading the manual

    Onkyo TX-NR818

    DaveW from Orland Park, IL on 1/16/2014

    Crutchfield Customer Review (What's this?)

    Works better than I thought it would. WHen I buy my next tv, I will look at this brand again.

    Pros: Easy Setup

    Cons: None so Far.

    Onkyo 818

    Toniegm from LA,CA on 1/8/2014

    Crutchfield Customer Review (What's this?)

    This is my first THX and Onkyo brand receiver and it is AWESOME. I have 4 Bose satelite, 1 JBL center and JBL 12" powered subwoofer speakers. Sound is so awesome cool that we now enjoy more in watching movies and listening to music. As always, Crutchfield's amazing customer service made all my purchases so smooth. I have been a Crutchfield happy customer for 15 years.



    Onkyo TX-NR818

    Anonymous from Media, pa on 1/4/2014

    Crutchfield Customer Review (What's this?)

    I have had this unit for a few weeks now. Still working on the settings, but nearly set up. Plenty of power and the set up options are extensive. Unit is robust and pushes clean power to my 7.1 set up. You can't beat the price break of the outgoing model!

    Pros: Set up options are extensive. Remote may replace my harmony one as an universal remote.

    Cons: Display screen for a unit this size is underwhelming and below average.


    Don from Mi on 12/31/2013

    Crutchfield Customer Review (What's this?)

    top notch reciever-absolutely love it

    Pros: everything

    Cons: its big and heavy-but sooooo worth it

    Onkyo TX-NR818

    Steve from Mc Sherrystown, PA on 12/30/2013

    Crutchfield Customer Review (What's this?)

    Set up was fairly easy. Sound quality is great and the picture is fantastic. I would recommend this receiver to everyone

    Pros: Easy to setup . More than enough inputs The labels supplied buy crutchfield helped for hookup

    Cons: A paper manual would be better as a referance

    my 3 week review ONKYO TX NR 818

    shaun from jacksonville fl on 12/27/2013

    Crutchfield Customer Review (What's this?)

    I will rate this with 5 stars, even though there is some things I don't like about it. the few things I don't like are as follows(1) no 12 volt trigger for main use, only for zone 2 and 3. (2) no back lit remote. I have had it 3 weeks and now the things I like (1) the video processor, didn't expect it , but it has mad a big difference in color and quality of my movies( the colors is just amazing) ..(2) AUDYSSEY XT 32....WOW is all I can say, after my 1st run of it..didn't think I was really impressed, after listening to some stuff in a few movies, my system came alive...bass soooo deep all around tonal balance, now movies sound so much better, im pretty impressed now that I have had some seat time, so happy I bought this( replaces a Yamaha HTR 5890) ..this has been well worth the money spent...and BTW no HDMI issues ..has 2 built in maybe 4" fans and has not even came close to getting hot enough for them to come on( not in a enclosed cabinet) do have gear on top, but have a 2" space between for good air flow....I will try to do another review after a few months, hopes this helps you decide

    Pros: features for the money, audyssey xt 32,video processor

    Cons: no 12 volt trigger for main, only triggers for zone 2 and 3... No back lit remote

    Onkyo TX-NR818

    John from Silver Lake, OH on 12/19/2013

    Crutchfield Customer Review (What's this?)

    Owned for about 2 weeks now. So far so good. Nice surround (I'm set up for 7.1). Setup is easy if you take the time to follow along in the owners' manual. The easiest way to do that is by having a laptop with you, because the manual is on a disc only, no booklet.

    Pros: Power, Features, Looks, Ease of hook-up and set-up.

    Cons: none yet, but I hope this newer construction model is better than my previous model, because the HDMI board went out after less than 3 years. Fingers crossed!

    My Onkyo experience

    Mauricio from Fair Oaks, California on 12/17/2013

    Crutchfield Customer Review (What's this?)

    I've purchased 3 Onkyos' in the past, every purchase has proven better every time. My last purchase is an Onkyo TX-NR818, excellent a/v. I love the clarity and separation of the sounds, I also like the way Onkyo calibrates the unit with the special microphone, I'm very happy with my receiver, although I must say I had to return my Onkyo TX-NR818 because the first one had a problem when I was playing music the unit was making a popping sound between tracks, or when watching tv the popping sound was between commercials or back the regular programming, I believe it was damaged by UPS in the way they handle packages, the carton was broken and the inside foam ends were also broken. But Crutchfield has a 60 days return policy and they exchanged it for me. Great experience.

    Pros: Priced right, the people at Crutchfield are very good helping.

    Cons: None yet

    Excellent receiver

    AK from Boston on 12/15/2013

    Crutchfield Customer Review (What's this?)

    Agree with previous reviewers on what a great system it is. I have a BluRay, HDTV, CD player, FIOS box, tuner and hard-wired internet. We use the Net input a lot and it streams Pandora & Spotify easily. I have a 5.1 setup in the family room (small room 11x12 and odd shaped) and a 2 speaker setup in Zone 2 which works superbly. Easy setup (plug everything in, turn it on, run Audyssy, enjoy ). Had it about a month and zero issues so far.

    Pros: As everyone says, Crutchfield service that really helped me put together an entertainment entire system (receiver, surround, speakers, cables, univ remote...) Could probably buy everything online and save a few $100 but didn't want to risk faulty products & poor service.

    Cons: - Remote is not backlit. Can be annoying especially if you watch movies in a dim room. I upgraded to a Harmony Touch universal remote that I LOVE (and solves this problem entirely & replaced all my other remotes) !!! - It is BIG & sticks out of my entertainment center even more with all the connections in the back.

    Outstanding Receiver!!

    SteVeW from Bremerton, WA on 12/14/2013

    Crutchfield Customer Review (What's this?)

    Awesome receiver. The calibration, power and other features made this be a single point upgrade to multiple features of my home theatre. Great price, and fast shipping!

    Pros: Ease of use Features Power Audyssey

    Cons: Heavy

    good sound receiver

    Al Z. from Tucson, AZ on 12/13/2013

    Crutchfield Customer Review (What's this?)

    Oh, yes! The sound is worth the effort of setting this monster up. I'm old -- digital electronic equipment baffles me. I used to keep up with changes in audio equipment during the 60s through the 80s, the BAM! It started happening too quickly and I started slowing down too rapidly. Throw in all the video stuff and I became an anachronism. HOWEVER...I persevered and got my digital cable, stereo music, turntable, DVR, VHS tape, set top box, etc., etc. all up and cookin'. It took me a couple of days on and off without any available Crutchfield help (aggravation cool-down periods included), but it's done (except the Wi-Fi thingie) and I can now heartily recommend this receiver. I probably should've called Crutchfield for help, huh?

    Pros: The sound produced bt this receiver is the best I've ever heard in my own home. TV, radio, audiophile vinyl, you name is awesome.

    Cons: Hooking things up was very aggravating for me, especially because there was no owners manual included other than a quick start guide. I wish these doggone companies would return to respecting their customers enough where they will print and include manual with a purchase. Sheesh already!

    Great receiver

    Mike from Tucson, AZ on 12/11/2013

    It's a great midline receiver. I'm running it as a 9.2 with and external amp. And works great for the mid sized room it's in. The kids love the sound when playing games and turns a movie into a theater.




    WayneC from Florida on 12/7/2013

    Crutchfield Customer Review (What's this?)

    My 7.1 surround system just woke up! Cannot begin to compare how the 818 has awoken my speakers and complete system with much more detail and balanced sound than from my old Onkyo TX-SR804. While my 804 was no slouch and is still going strong (going to the bedroom to upgrade my current surround system there), this new 818 sounds amazing in comparison. Set up was time consuming but well worth the improved sound accuracy. Did not know what I was missing! We'll see how it stands up over the long haul. If my 804 is any indication this 818 should keep providing amazing surround and stereo sound for many years to come.

    Pros: Clean, crisp clear sound whether surround or stereo and whatever the source, blu-ray, roku/netflix, etc.

    Cons: None so far.

    Onkyo TX-NR818

    Marvin from Raleigh, NC on 12/4/2013

    I purchased the Onkyo TX NR818 due to its mass amounts of features it has at this sale price. I dare you to find another receiver at this price with something even close to these specs. Setting and configuring up is a breeze using the onscreen guide. I love the dual HDMI output, one goes out to my projector while the other output is to a monitor.The Audyssey 32XT is great for self-calibration (i then fine tune with SPL meter). Although the receiver has Dual Subwoofer outputs, the version of Audyssey on this receiver does not have multi subwoofer calibration. My setup consists of a 7 channel external amp powering my Klipsch Reference speakers and dual PSA subwoofers. This Onkyo receiver is capable of outputting 9.2 surround sound (Either Wide OR Heights but not both) with an external amplifier. I had an old pair of Polk tower speakers so that I can test out 9.2 (Front Wide mode). The Onkyo is powering my front main speakers. If your room is wide enough having front wide speakers really opens the front sound stage! The remote buttons are laid out nicely. I love the onscreen volume and audio information since my receiver is in a closet. The remote app on my Android phone, is a neat option. I have my Onkyo hardwired to my network so everything is instant. When connecting an iPod via USB, I am able to use my phone like an iPod to view and play songs (same for online radio). Overall I am one happy camper and do not see myself upgrading in the future.

    Pros: Looks, Power, Inputs, Outputs, Features, 9.2 audio processing capability, network ready, remote

    Cons: None

    TX-NR818 Works Great - Does what I want

    Eric from Livermore, CA on 11/17/2013

    Crutchfield Customer Review (What's this?)

    Overall, I really like the receiver. I upgraded my old unit (ONKYO TX-SR805) 1) Because I wanted the ability to run an output to my TV or to a projector when we watched movies. 2) I wanted the HDMI pass through when the unit is off, and 3) I wanted to use my home network to play music from my phone or my computer through the stereo. On all three counts, the receiver worked very well. The sound quality is very good. There is plenty of power and I can Bi-Amp my front speakers (Polk RTi-A9). Getting an app for my Android (Motorola Atrix) to control the receiver and select music on my computer is great too. I haven't had any trouble with the unit. (except that the first one that I received was defective and had no sound output whatsoever - it almost seemed like it wasn't fully assembled in the factory - Malaysia) The only thing that is a little funny is that when switching from one source to another, or when turning the unit off to use the pass through HDMI, there is a delay of a second or three. I guess that is normal (???), but I have an uneasy feeling when the delay is there. It always switches over after a few seconds. (I had a Marantz unit that didn't fully switch frequently so I returned it and bought this Onkyo unit.) I've been very happy with the TX-NR818.

    Pros: HDMI Passthrough, Two HDMI Outputs, Networking music from my computer.

    Cons: Slight delay when switching sources or to HDMI Pass-through


    Gaylord from Sevierville, TN on 11/4/2013

    Crutchfield Customer Review (What's this?)

    Had adenon av receiver for a week . It overheated twice. I sent it back and obtained the onkyo 818. The onkyo wighs 50 pounds. It has a giant transformer. Electronics are not as good as transformers to make the wattage.This is why old fluorescent fixtures lasted longer than the new ones . The onkkyo 828 weighs 40 + pounds.They are moving toward electronics . You figure it out.

    Pros: Clear sound. Easy to use

    Cons: None

    onkyo tx-nr818

    bob from southbury ct. on 10/29/2013

    Crutchfield Customer Review (What's this?)

    I am very happy with it

    Pros: i have a 1979 onkyo receiver which I bought new and my new one is all I had hoped it would be .


    Onkyo AVReceiver TX-NR818

    Larry R from Moody, AL on 10/26/2013

    Crutchfield Customer Review (What's this?)

    Probably a Great product after I get through all component setups. Not there yet.

    Pros: The Turner Sounds great through the speaker system, Have not yet been able to set up the audio with my satellite box and TV.

    Cons: Manual not completely clear on how to proceed with the initial setup and recommendations. Printing for the different components not easy to read for older people.


    Big Dan from Spring Grove IL on 9/24/2013

    Crutchfield Customer Review (What's this?)

    I love Onkyo products!! The salesman recomended this to me as the best bang for the buck!!! It really makes my Klipsch reference speakers come to life!! Very clean power!! This doesn't get hot like my Sr 706 did!! The built in cooling fans are awesome!! I LOVE THE NETWORK CONNECTION SO I CAN LISTEN AND WATCH ANYTHING OFF MY NETWORK HARD DRIVE!!! RECOMEND THIS 1000% ITS A MUST HAVE IF YOU NEED POWER!!!


    Cons: NONE!! UNLESS YOU CAN LIFT 50lbs! LOL!! But weight means POWER!!

    Nice upgrade from my 806

    TimP from Morgantown, WV on 9/15/2013

    Crutchfield Customer Review (What's this?)

    I like this receiver a lot. Big improvement on my 6 year old Onkyo 806, which I also liked. Seamlessly handles wifi, streams Pandora in a very transparent way, very good at music and very good at 5.1 with the potential to add more speakers. I am very happy that I bought it.

    Pros: Easy to set up, very good sound, good wifi links with the extra adapter.

    Cons: Heavy.


    Jordyn from Williston, ND on 9/13/2013

    Crutchfield Customer Review (What's this?)

    Easy to navigate through the settings and sounds great.


    Cons: As with most receivers....the remote.

    Onkyo TX-NR818

    Anonymous from 29906 on 8/25/2013

    Crutchfield Customer Review (What's this?)




    The Onkyo 818 is a Winner!

    RAB from Chesapeake, VA on 8/6/2013

    Crutchfield Customer Review (What's this?)

    I am thoruoghly impressed with the 818. It has a wow factor. I bought it to replace my 808. The picture quality is superb and the sound is amazing. Although I only have a 5.1 set up, this unit was worth the investment. I have a wireless sub that works without a hiccup. The Bluetooth capability is a nice addition as well as the availability of the 8 HDMI inputs. The only drawback is that the remote is not backlit. I think that this price represents a fair price point for this receiver. I was somewhat skeptical about buying another Onkyo receiver at first, because the sound went out on the 808 and the Onkyo people were not too helpful, but the service and help I received from Crutchfield is worthy of note. They were always easy to contact and willing to help with all of my questions from brand comparisons to set up.

    Pros: Picture and sound quality, easy set up, the fact that the unit runs cool and its price make this an attractive receiver.

    Cons: The remote is not backlit which is somewhat hard to understand given the price and quality.

    Onkyo does it again and Crutchfield delivers the price!

    Steve H from DFW area, TX on 8/3/2013

    Crutchfield Customer Review (What's this?)

    My 2+ yr old TX-NR808 quit playing sound (can you believe it?) Onkyo agreed to fix it out-of-warranty, but I had heard repairs take months(it was only 3 weeks) and so I ordered this one to replace it, thinking I could use the old one at our lakehouse or sell it on Amazon, meanwhile upgrading to the TX-NR818. There were a few upgrades I was interested in; Bluetooth playback from iphone, the new Audessey speaker setup, 2 more inputs. Crutchfield had the best price with free shipping and the Bluetooth addon included free, so I ordered from them. They got it two me in a couple or three days (great service, as we expect now) and I got it hooked up in short order as I had marked all my previous inputs and outputs. I ran the Audessey speaker setup once I got the baby to be quite for long enough and was done. My son said it "is the best surround sound I've ever heard". This was playing thru a Bose Acoustimass 5.1 system. Almost identical to the TX-NR808, which I loved and with the upgrades, it's super. This review is off the cuff, from memory, I didn't go back and verify all the terms and feature names I used.

    Pros: Great sound. Networkable. 3D compatible. 8 hdmi inputs, 2 out. Bluetooth playback from iphone. Zones 2 & 3 for playing back different media to different areas

    Cons: Networking can be difficult. First attempt to sign in to streaming radio, would not accept spelling selections (letters,etc)

    Great Reciever

    BS from Holly Springs, NC on 7/29/2013

    Crutchfield Customer Review (What's this?)

    Awesome receiver. This thing has plenty of power to fill a 30 foot by 20 foot room with amazing sound. I currently have it hooked up in a 7.2 configuration but plan to shortly add another amp to drive channels 8 & 9, can't wait to hear 9.2 sound. Tons of features and adjustments which to me is a good thing to be able to adjust precisely how I want it.

    Pros: Tons of features which for me is a good thing. At the same time if you want simplicity you can go through the basic setup and you'll be fine right out of the box.

    Cons: None yet

    Fantastic product

    JBM from Stamford, CT on 7/8/2013

    Crutchfield Customer Review (What's this?)

    I've put this system through the ringers yet, fully, but what I have done with it, it has performed beautifully. Fantastic receiver. Can't wait to push it to new limits.

    Pros: Lots of inputs

    Cons: Wish the remote had more lighted keys. This device is HEAVY.


    Andy from Atlanta, Georgia on 7/8/2013

    Friends, you will forgive me. But to understand how much this receiver is inferior to the other in sound quality and equal in value, they must listen together. I did not, therefore suffered minor costs. I wish you to avoid my errors. Best Regards Andy



    Worth every penny

    Chris P from Pittsburgh, PA on 6/24/2013

    Crutchfield Customer Review (What's this?)

    Got the unit a couple weeks ago and I am totally happy. Easy to set up. Great features. My video looks better than ever.

    Pros: Set-up. On screen display.

    Cons: NONE!!!!

    Onkyo TX-NR818

    ChuckN from Plano TX on 6/21/2013

    Crutchfield Customer Review (What's this?)

    A superb AVR with decent power and loads of functionality.

    Pros: Good video instructions. Powerful enough to push speakers that are power hunger. crisp sound and clear and vibrant video colors

    Cons: No SACD analog multi-channel connection for my old SACD player.

    Onkyo TX-NR818

    Brett from Cincinnati, OH on 6/19/2013

    Crutchfield Customer Review (What's this?)

    I have owned this receiver for a couple of weeks and am thoroughly impressed. It supplies loads of crystal clear sound to my 5.1 speaker system and is intuitive to use. I bought it to replace an old Onkyo receiver that wasn't exactly what I had hoped it would be, but early signs are this might be all I will ever need. It is the receiver I've always wished I could get.

    Pros: Loads of power and crystal clear sound, very clear display, online features are great, this is an awesome workhorse.

    Cons: None.

    Onkyo 818

    Bill A from Boone ,NC on 6/2/2013

    Crutchfield Customer Review (What's this?)

    Fantastic sound w/good front and rear separation. Set up equipped some help from Crutchfield which was good..




    Ken from Vero Beach, FL on 5/27/2013

    Crutchfield Customer Review (What's this?)

    I bought the 818 to replace my 806 which was having the HDMI board capacitor problem. One of these days when I get time, I will try to relace the capacitors and if this fixes my 806 problems, I'll give the 806 to my son. The 818 was a piece of cake to install as the replacement. I am very pleased with the 818's performance and ease of installing. The price from Crutchfield for the TX-NR818 was also very attractive.

    Pros: Easy to set up.

    Cons: A tad heavy to comfortably lift and postion on a glass shelf which my entertainment center has.

    A good A/V receiver.

    TomE from Olympia Fields, IL on 5/24/2013

    Crutchfield Customer Review (What's this?)

    I am still trying to figure out how to use. I replaced a previous Onkyo unit, I was looking for more updated unit.. I miss the switched outlet for my powered subwoofer and speakers, I have to do that manually through a power strip. The Manual is on a CD which is slowing my learning process. Unit performs well as with all new electronics there is a learning curve. I know if I have a problem Crutchfield will help. I recommend the unit for a home audio/video system. I probably would give the unit 5 stars, but haven't finished using all the features.

    Pros: Remote is easier to hold than my previous Onkyo remote. Onscreen setup is really convenient and easy to use. I have no had a chance to install the wireless adapter.

    Cons: No switched power outlet. No printed manual.

    Great receiver

    Anonymous from Wichita, ks on 5/19/2013

    Crutchfield Customer Review (What's this?)

    Excellent upgrade from the TX-SR806

    Pros: 3-D ready and pass through

    Cons: None yet

    Onkyo TX-NR818

    Jose from San juan, PR on 5/16/2013

    Crutchfield Customer Review (What's this?)

    Excellent, great sound



    Onkyo TX NR818

    Pete P from Maine on 5/6/2013

    Crutchfield Customer Review (What's this?)

    I am impressed with this receiver. With 135 watts output per channel, this unit rocks the man cave. Simple hook-up replacing the Sanyo unit that had expired-and the difference was amazing. Once I ran the initial set up with the Audyssey speaker optimizing system, I began to experience surround sound like never before! My Polk Audio speakers have never sounded so good. My powered sub is pumping out base that I have never heard from it before, really enhanced the audio available from some of my blu-ray discs. Exceptionally pleased, and as usual, the service and prompt shipment from Crutchfield remains unmatched.

    Pros: Easy replacement and integration into my system; exceptional audio...

    Cons: None

    Onkyo TX-NR818

    LarryO from Chattanooga, TN on 1/23/2013

    Crutchfield Customer Review (What's this?)

    Superior receiver. Programmable inputs are nice. I have it connected to Polk Monitor Series 50, TSi200 and CS20. Great sound that will knock you out of the room if you like. Down low it is crisp and clear. Runs a little warm but that's what 135w/channel will do. It's the upgrade I've always wanted.

    Pros: configurable, nice on-screen menus

    Cons: none

    Onkyo TX-NR818

    Anonymous from Mobile, Al on 12/31/2012

    Crutchfield Customer Review (What's this?)

    This reciever is AWESOME! it is like a tank, I need to say no more!!!! :)

    Pros: I recommand this to anymore!


    Onkyo 818

    Tom from Ohio on 12/6/2012

    Crutchfield Customer Review (What's this?)

    I've had this unit for a few weeks now and haven't found any faults that are worth mentioning, with the possible exception of input choices as I have several component video units that seem to be over-ridden by the HDMI inputs that are assigned to the same input. It is entirely possible that both inputs can be used by switching between them and I just haven't taken the time to figure out how to switch them yet. I'm coming from two aged receivers (Denon AVR2500 and Yamaha 5590) and for power output, clarity, separation, and control this Onkyo unit does not disappoint. I found the GUI to be intuitive, the remote easy to use, and the USB and Net features function well. Phono input is a bonus for my Denon player. The Audessy 32 sounds truly remarkable IMO, and really is a nice improvement to my setup. I will mention it took several attempts at updating firmware BUT, I'm using the Onkyo wifi USB plugin for net service (which I don't recommend, BTW) and after a couple of failed updates it finally updated. I did have to run Audessy again and adjust my input levels again but it wasn't a big deal. Overall, so far I am very happy with this unit and after struggling for weeks over the Denon 3313, NAD 757, Marantz 6007 or this unit all at the same price, I believe for my intended use of music and home theater with tons of flexibility, I made the right choice.

    Pros: Tons of power, nice construction, incredible array of options, good GUI, decent remote, good looks, Audessy 32. I'm a believer that high power and low frequency = high weight, and at 40 lbs this unit fits the bill too. Have a nice cabinet or very sturdy shelf......

    Cons: Updating firmware may take a few attempts, but not a big deal really. Net services seem flakey BUT this could be caused by the wifi USB adaptor I'm using, which I don't recommend. Haven't tried a hard wired connection yet.

    The Journey

    hardingi360 from Anacortes, WA on 9/22/2012

    Crutchfield Customer Review (What's this?)

    I originally purchased a Denon from Diymicro but it came in a seriously beat up, previously opened box. They were pawning a demo off as a new unit on me so I sent it back. I noted that Denon had gotten seriously lighter over the years and wondered about the sound quality. Low frequencies and high power equal big heavy components. I went back to researching and decided on the Onkyo. This is a heavy unit with two cooling fans internally which is very good since a common complaint over the years with Onkyo is heat. Hooking it up was relatively easy. I found the Audyssey MultEQ XT32 set up using eight test locations to be a really good way to go. I don't know how it manages to do it but it fills the entire room with a very nice balance of sound. The power is good and the processing automatic and seamless. I don't find the app for the itouch to be as intuitive as advertised but works well now that I am familiar with it and it is very handy for zone two. I am very happy I took the extra time and went with this unit. Crutchfield is a good reliable business partner. I can't say the same for Diymicro.

    Pros: Excellent sound and processing. It works automatically and there is little need to monkey with it. Connectivity with the internet is a giant leap forward. Internal cooling fans cure the heat build up issues in my cabinet and will extend the life span of the components I am sure. The remote control actually works without forcing an additional expense to go with a Harmony or similiar. Nothing more frustrating than dumping this kind of money and finding a cheasy remote to go with it.

    Cons: The remote control app for the itouch was not "intuitive" as advertised. Maybe I am not their ideal test subject but I found it tricky to learn. Once I got it figured out though it is a great way to go for zone two.

    My Third Onkyo AV Receiver

    JimOD from Trent Woods, NC on 7/13/2012

    Crutchfield Customer Review (What's this?)

    It is hard to add anything to all the wonderful reviews on the Onkyo TX-NR818. For me in my home theater it did everything and more that I wanted. This is my 3rd Onkyo AV Receiver that I bought from Crutchfield. It's funny, but it works out that I bought one every 5 years of the same basic model but upgraded. For me, I have a Panasonic 3D projector. My older Onkyo would only pass 3D on one channel. This unit has 8 HDMI inputs and 2 HDMI outputs. Wow. No problem with all my inputs. I use them all with remote switching. This HDMI switching device is everything I dreamed of. My last one only had 3 HDMI inputs. It upgrades the picture noticeably to 1080. It is capable ot upgrading almost 4X that to 4K. Sony now makes a projector that is capable of 4G and I have read a review of a AVS member that has that setup and it is outstanding according to him. But the Audyssey Dynamic EQ 32 really puts it over the top. It comes with a mic and you need a camera tripod to automatically tune your speakers. I could not believe it but it told me my center speaker which was no slouch was unacceptable and it could not go on. I switched that speaker in the system and where ever is put is Audyssey turned it down. I researched and bought a Polk CS20 from Crutchfield and Wow. It is like magic. My whole audio theater experience changed pleasingly for the better. I have no idea how they did it and I have two subs that came into their own. Check out reviews at AVS and Amazon.

    Pros: Excellent buy.

    Cons: None yet.


    Hands-on research

    Features and Specs

    Number Of Channels 7
    Stereo RMS Power (watts) 135
    THD in Stereo 0.08 %
    Frequency Bandwidth (stereo) 20-20k Hz
    Minimum Impedance L/R 4 ohms
    Minimum Impedance Center 4 ohms
    Minimum Impedance Surround 4 ohms
    General Features
    Internet-ready Yes
    Bluetooth Optional
    Apple AirPlay No
    App Remote Control Yes
    USB port for iPod/iPhone Yes
    FM Sensitivity Not Given
    HD Radio Tuner No
    On-Screen Display Thru HDMI
    Auto Speaker Calibration Audyssey MultEQ XT32
    HDCP 2.2 for 4K Video No
    HDR-compatible No
    HDMI Standby Pass-through Yes
    4K Video Upscaling Yes
    HDMI to HDMI Upconversion Yes
    DLNA Certified
    MHL-compatible Yes
    Multibrand Remote Control Yes
    Learning Remote Yes
    LCD Remote
    Width (inches) 17-1/8
    Height (inches) 7-13/16
    Depth (inches) 18-1/4
    Weight (pounds) 40.3
    Parts Warranty 2 Years
    Labor Warranty 2 Years
    Multi-room Audio--Video
    Powered Multi-room Audio Output Yes
    Preamp Multi-room Audio Output Yes
    Multi-room Video No
    Multi-room HDMI Output No
    Surround Processing
    Dolby Digital DD, EX, TrueHD, DD+
    Dolby Atmos N/A
    DTS DTS, ES, HD, HDMA, Neo6, NeoX
    DTS:X No
    Inputs & Outputs
    Phono Input 1
    Audio-Video Inputs 8
    Audio-only Inputs 1
    Component Video Inputs 2
    Component Video Monitor Outputs 1
    Optical Digital Inputs 3
    Coaxial Digital Inputs 3
    Optical Digital Outputs None
    Coaxial Digital Outputs None
    HDMI Inputs 8
    HDMI Monitor Outputs 2
    Subwoofer Outputs 2
    Multi-Channel Analog Input No
    Multi-channel Preamp Output Yes
    Main Speaker Output Pairs 1
    Main Speaker Terminals Posts
    Ethernet Port 1
    USB Connections 2
    Removable Power Cord IEC 2-prong

    Product Research

    Audio Features
    Video Features
    Network & Tuner Functions
    USB/iPod Integration
    Convenience Features
    Remote Control

    Audio Features

    7.2ch AV Receiver: The Onkyo TX-NR818 features a 7-channel amplifier rated at 135 watts (into 8-ohms, at 20Hz-20kHz, with 0.08%, driving 2 channels) and two mono subwoofer preamp outputs. The 7-channel amplifier can be configured in four ways.

    • 7.2ch Surround: The Onkyo TX-NR818 provides 7.2ch surround in your main listening area. You can listen to either surround back, front high, or front wide speakers.
    • Front Bi-Amp: The Front High/Zone 3 speaker terminals can be reassigned and used along with the Front terminals to bi-amp the front speakers, providing improved bass & treble performance. When bi-amping the front speakers, the receiver is limited to a 5.2ch speaker system in the main room and you cannot power additional speakers in Zone 2 or 3.
    • Powered Zone 2: The Front Wide/Zone 2 speaker terminals can be reassigned to power a pair of speakers in Zone 2. This configuration restricts the main listening room to 5.2ch surround (no surround back or Front High/Wide speakers).
    • Powered Zone 3: The Front High/Zone 3 speaker terminals can also be reassigned to power a pair of speakers in Zone 3. This configuration restricts the main listening room to 3.2ch surround (no surround/surround back or Front High/Wide speakers).

    WRAT (Wide Range Amplifier Technology): WRAT is based around a low negative-feedback circuit topology that works to reduce signal noise and distortion across the frequency range. A "closed ground-loop circuit" design is employed, in which each circuit has a separate link to the power supply. This helps to cancel individual circuit noise and keep the ground potential free of distortion. High Instantaneous Current Capability (HICC) enables WRAT amplifiers to immediately cancel the speakers' reflex energy and instantaneously send out the next signal. The same high current better manages speaker impedance fluctuations, which can negatively affect performance.

    3-Stage Inverted Darlington Circuitry: 3-Stage Inverted Darlington Circuitry is a core Onkyo technology incorporating a low-NFB (negative feedback) design that makes the sound more natural.

    H.C.P.S. (High Current Power Supply): Under the anti-resonant cover of any Onkyo receiver, you'll instantly notice the High Current Power Supply (H.C.P.S.) transformer. With its huge, isolated power supply design and high-capacity filter capacitors, it delivers the large amounts of power necessary for reproducing the wide dynamics of movie soundtracks and the detail and clarity of your music.

    Optimum Gain Volume Circuitry: Optimum Gain Volume Control adjusts the gain so that less than half the amount of attenuation is needed, ensuring the signal never comes close to the noise floor. This protects the signal against noise, resulting in a dramatically clearer sound.

    PLL (Phase Locked Loop): PLL jitter-cleaning circuit technology reduces jitter by comparing the input and output phases of the digital signal and creating an accurate clock waveform. This enhances the precision of digital signal processing and noticeably improves audio quality. Jitter-cleaning technology works both for digital signals input via HDMI and for digital signals converted from analog signals inside the receiver itself.

    Burr-Brown DACs (Digital-to-Analog Converters): This receiver is equipped with 192kHz/24-bit Burr-Brown DACs to decode and playback high-resolution recordings with less jitter and clearer sound.

    32-Bit Processing DSP: The Onkyo TX-NR818 is equipped with a powerful and highly accurate 32-bit processing DSP (Digital Signal Processor) for better surround sound reproduction.

    Multi-Channel Decoding Formats: The Onkyo TX-NR818 AV receiver supports the following multi-channel (Dolby Digital, DTS, Dolby Pro Logic) decoding formats.

    Note: Dolby Digital and DTS listening modes can only be selected if your audio source is connected to the AV receiver via a digital audio connection (HDMI, optical, or coaxial). To enjoy true 7.1ch Dolby Digital TrueHD and DTS-HD surround sound, the receiver must be connected to your Blu-ray player via HDMI.

    THX Certified: The TX-NR818 AV receiver is THX certified. Founded by George Lucas, THX develops stringent standards that ensure movies are reproduced in movie theaters and home theaters just as the director intended. From early design concepts to product rollout, THX works with its manufacturing partners at each step of product development. Every detail is meticulously mapped to the THX performance standards. And THX engineers spend countless hours testing and analyzing each product for sound quality, usability and interoperability. The result of this collaborative process is a THX Certified receiver, amplifier or pre-amplifier designed from the ground-up to present your favorite movies, music, and games in 5.1ch to 7.1ch surround sound loud and clear at studio reference volumes.

    • THX: THX Modes (Cinema, Music, or Game) carefully optimize the tonal and spatial characteristics of the soundtrack for reproduction in the home-theater environment. They can be used with various multichannel sources. Surround back speaker output depends on the source material and the selected listening mode.
    • THX Ultra2+ (w/ THX Loudness Plus): The ultimate benchmark for home audio performance, THX Ultra2 Plus is specified for rooms where the screen-to-seat viewing distance is more than 12 feet and the room volume is 3,000 cubic feet or greater. This mode expands 5.1-channel sources for 7.1- channel playback. It does this by analyzing the composition of the surround source, optimizing the ambient and directional sounds to produce the surround back channel output. You can choose between Cinema, Music, or Game mode. THX Loudness Plus is a volume control technology featured in THX Ultra2+ certified components. With THX Loudness Plus, home theater audiences can experience the rich details in a surround mix at any volume level. THX Loudness Plus compensates for the tonal and spatial shifts that occur when the volume is reduced by intelligently adjusting ambient surround channel levels and frequency response. The THX Loudness Plus feature can be applied when listening in any THX listening mode.
    • THX Surround EX: This mode expands 5.1-channel sources for 6.1/7.1- channel playback. It's especially suited to Dolby Digital EX sources. THX Surround EX, also known as Dolby Digital Surround EX, is a joint development between Dolby Laboratories and THX Ltd.

    Onkyo Original DSP Modes: Onkyo's Original DSP Modes, combined with Dolby Digital/DTS/Dolby Pro Logic processing, produce more realistic, powerful sound effects for your movie and music sound tracks based on the type of content and your home theater setup. You can choose from the following:

    • Orchestra: For classical or operatic music.
    • Unplugged: For acoustic instruments, vocals, and jazz.
    • Studio-Mix: Suitable for rock or pop.
    • TV Logic: Adds realistic acoustics to TV shows.
    • Game: The receiver offers four different Gaming modes - RPG, Action, Rock, and Sports.
    • All Ch Stereo: Stereo sound from all speakers. Ideal for background music.
    • Full Mono: All speakers output the same sound in mono.
    • Theater-Dimensional (T-D): Theater-Dimensional circuitry takes the complexity out of conventional surround-sound setups and lets you experience the excitement of surround sound from as few as two ordinary speakers. Theater-Dimensional's unique multi-speaker modes let you place up to five speakers conveniently by the TV, for the most realistic virtual-surround sound possible.

    Audiophile Listening Modes: The Onkyo TX-NR818 offers two audiophile listening modes which bypass the receiver's tone & DSP processing for higher sound quality performance. In Direct mode, audio from the input source is output without surround-sound processing. This mode delivers pure sound with minimum sound quality adjustment and filtration. In Pure Audio mode, the display and video circuitry are turned off, minimizing possible noise sources for the ultimate in high-fidelity audio reproduction.

    Audyssey Technology: The TXN-R818 features a full package of Audyssey audio technologies for optimal sound quality. Audyssey Dynamic Volume offers real-time volume adjustment, while Audyssey DynamicEQ improves your system's surround effects during low volume levels. Audyssey MultEQ XT32 automatically sets speakers to suit your room's listening environment and the speakers' characteristics. The AV receiver even offers Audyssey DSX which adds front speaker effects.

    • Audyssey MultEQ XT32 Automatic Speaker Setup: With the supplied speaker setup microphone, Audyssey MultEQ XT32 determines the number of speakers connected, their optimum crossover frequencies, and their distances from the primary listening position, then adjusts each automatically. The room's acoustical properties are then measured and corrected over the listening area in both the frequency and time domain. There is a threaded insert on the bottom of the microphone so it can be mounted on a tripod for accurate listening position placement. Up to 8 listening position measurements are taken to optimize the surround effect for a broad area. If you prefer you can also setup your speaker system manually.
    • Audyssey Dynamic EQ: Audyssey Dynamic EQ solves the problem of deteriorating sound quality as volume is decreased by taking into account human perception and room acoustics. Dynamic EQ selects the best possible frequency response and surround levels moment-by-moment as volume is changed. The result is bass response, tonal balance and surround impression that remain constant despite changes in volume. Audyssey Dynamic EQ combines information from incoming source levels with actual output sound levels in the room, a prerequisite for delivering a loudness correction solution. Audyssey Dynamic EQ works in tandem with Audyssey 2EQ to provide well-balanced sound for every listener at any volume level.
    • Audyssey Dynamic Volume: Audyssey Dynamic Volume solves the problem of large variations in volume level between television programs, commercials, and between the soft and loud passages of movies. Dynamic Volume looks at the preferred volume setting by t he user and then monitors how the volume of program material is being perceived by listeners in real time to decide whether an adjustment is needed. Whenever necessary, Dynamic Volume makes the necessary rapid or gradual adjustments to maintain the desired playback volume level while optimizing the dynamic range. Audyssey Dynamic EQ is integrated in Dynamic Volume so that as the playback volume is adjusted automatically, the perceived bass response, tonal balance, surround impression, and dialog clarity remain the same whether watching movies, flipping between television channels, or changing from stereo to surround sound content.
    • Audyssey Dynamic Surround Expansion (DSX): Audyssey DSX adds front effect speakers to improve spatial sound reproduction. Starting with a 5.1 channel system, DSX adds front Wide and/or front Height channels for better sound staging (although both wide and height speakers can be added, only one pair is used at a time). DSX also applies Surround Envelopment Processing to enhance the blend between the front and surround channels.

    Surround Parameters: The Onkyo TX-NR818 lets you tweak and fine tune specific surround sound modes to suit your preference.

    • Dolby Pro Logic II Music Settings: While listening in the Dolby Pro Logic II Music format, there are three further enhancements you can adjust; Panorama: (broadens the front stereo image to the surround speakers to provide a wraparound effect), Dimension (allows you to move the sound field forward or backward), and Center Width (allows you to adjust the width of the center channel).
    • Pro Logic IIz Height Gain: The Height Gain Control in Dolby Pro Logic IIz enables the listener to select how much gain is applied to the front high speakers. There are three settings, "Low", "Mid" and "High", and the front high speakers are accentuated in that order. While "Mid" is the default listening setting, the listener may adjust the Height Gain Control to their personal preference.
    • Center Image: In the Neo:6 Music mode, the Center Image feature adjusts the output of the left and right channels relative to the center channel, allowing you to make the center channel more or less dominant as needed. This improves the image of the center channel, especially when the listener is off-center. Adjustment varies from 5 (nothing subtracted from the L/R channels) to 0 (L/R channel output is cut in half).
    • Screen Centered Dialogue: By using the front high speakers, this function moves the center image of the dialogue upwards, so that the image of dialogue is fixed to the display height.
    • Listening Angle: While listening in the Theater Dimensional mode you can adjust the listening angle to either Wide (if listening angle is 40°) or Narrow (if listening angle is 20°).
    • THX Loudness Plus: THX Loudness Plus is a volume control technology featured in THX Ultra2 Plus certified receivers. With THX Loudness Plus, home theater audiences can experience the rich details in a surround mix at any volume level. THX Loudness Plus compensates for the tonal and spatial shifts that occur when the volume is reduced by intelligently adjusting ambient surround channel levels and frequency response. The THX Loudness Plus feature can be applied when listening in any THX listening mode.

    Dolby Volume: Dolby Volume automatically adjusts the difference in volume levels which can occur between different contents or source components, freeing the user from having to make volume adjustments. Also, by adjusting the frequency balance according to the playback volume, it recreates the original source audio. Dolby Volume therefore provides comfortable listening, effectively controlling the volume level difference without unnatural changes in volume or sound quality to recreate the balance and nuance of the source audio.

    Dialog Normalization: Dialog Normalization (DialogNorm) is a feature of Dolby Digital, which is used to keep the programs at the same average listening level so the user does not have to change the volume control between Dolby Digital, Dolby Digital Plus, and Dolby TrueHD programs.

    CinemaFilter: Using the CinemaFilter you soften overly bright movie soundtracks. Movie soundtracks are typically mixed for a large theater (relative to your home theater) with lots of soft seats and thick curtains on the walls. Home theater settings often lack these high frequency absorbing wall treatments, making the soundtrack sound too bright. CinemaFilter accounts for this and for many movies sounds more natural at home.

    Music Optimizer: While MP3 or AAC files may sound fine through the headphones of your portable digital player, the limitations of these files can be exposed when played back through a quality home entertainment system. This is because a significant amount of high-frequency bit information is lost during the file-compression process. To counter this, Onkyo has designed the Advanced Music Optimizer to compensate for lost bit information and improve the quality of compressed audio signals. This results in a clearer and more expansive sound. Also included in this technology is a loudness correction feature that further improves the audio character of compressed files. The Music Optimizer function only works with PCM digital audio input signals with a sampling rate below 48kHz and analog input signals.

    Re-EQ: With the Re-EQ function, you can compensate for harsh high-frequency content, making it more suitable for listening.

    Late Night Feature: The Late Night feature limits the dynamic range of Dolby Digital recordings. Limiting the dynamic range makes it easier to find a volume that ensures the quiet sounds are not too quiet and the loud sounds are not too loud for night time listening. This allows you to comfortably listen to without the need to constantly adjust the volume to keep from waking family/neighbors. The choices are: Off, Low, and High. This feature only works with Dolby Digital Encoded software and the depth of the feature will vary based on the individual software package.

    Bass & Treble: You can independently adjust the Bass (50Hz) and Treble (20kHz) of the TX-NR818 from -10 to +10 dB.

    Volume Setup: The Onkyo AV receiver provides the following volume settings.

    • IntelliVolume: With IntelliVolume, you can set the input level for each input (+/-12dB) selector individually. This is useful if one of your source components is louder or quieter than the others. This function does not work in Zone 2.
    • Maximum Volume: Use this feature to set the receiver's maximum volume level. This feature is useful to avoid turning the volume too loud by mistake. You can set the Max Volume from 30-79 (max), or Off (disabled).
    • Power On Volume: Use this feature to set the volume level when the power is turned on. You can choose between Last (same as the volume when the unit was turned off), Min (0), or 1-78.
    • Headphone Level: With this setting, you can specify the headphone volume (+/-12dB) relative to the main volume. This is useful if there's a volume difference between your speakers and your headphones.

    Audio Inputs/Outputs: The Onkyo AV receiver offers a variety of analog and digital audio inputs/outputs.

    • Assignable Digital Inputs: The Onkyo receiver is equipped with three optical digital inputs (2 rear/1 front) and three coaxial digital inputs. All four digital inputs are assignable. You can choose auto decoding , PCM, or DTS for the digital audio inputs. Auto will decode the signal in its original form (Dolby Digital, DTS, PCM, etc), PCM decodes the signal to 2-channel, while DTS decodes only DTS formatted sources.
    • 7.2ch Pre Outs: The Onkyo TX-NR818 features 7.2ch pre-amp outputs (Front, Center, Surround, Surround Back/Front Height/Front Wide, and dual subwoofer) for connection of an external power amplifier.
    • Binding-Post Speaker Terminals: The Onkyo TX-NR818 is equipped with color-coded binding-post terminals for all speaker connections; including Front L/R, Center, Surround L/R, Surround Back L/R, Front Wide/Zone 2 (L/R), and Front High/Zone 3 (L/R). The binding post terminals will accept bare-wire, pin-connectors, and banana plugs (single/dual).
    • Phono Input: The Onkyo A/V receiver is fitted with a Phono input and ground terminal for connection of a turntable (MM).
    • Headphones: When headphones are plugged into the full-size 1/4" jack on the front panel, all the speakers are automatically muted. When you connect an iPod or iPhone to the USB port on this receiver, no sound will be output from the headphone jack.

    Video Features

    Dual Core Video Engine: The Onkyo TX-NR818 employs a dual core video engine with HQV Vida and Marvel Qdeo processing for exceptional reproduction of standard and high definition video sources.

    • HQV Vida Video Processor (VHD1900): The TX-NR818 is equipped with the sophisticated HQV Vida VHD1900 processor to enhance the quality of both standard-definition and high-definition video sources. The chip employs multi-cadence tracking, expanded 12-bit color processing, and four-field motion-adaptive de-interlacing to optimize video quality and detail. Two new HQV technologies are incorporated into the VHD1900: "Auto HQV" works to automatically enhance the incoming image, while "HQV StreamClean" cleans up compressed video in real time by eliminating mosquito and block noise from lower-quality sources such as online video sites.
    • Marvel Qdeo Video Chip for 4K Upscaling: The Onkyo TX-NR818 utilizes a Marvel Qdeo Video Chip for 4K Upscaling and video processing. The Marvel Qdeo Video Chip produces quiet and natural video, free from noise and artifacts. Analog video signals (composite/component) are converted to HDMI and can be scaled to the resolution set in the menu: Through (no scaling), Auto (automatically scaled to the highest resolution supported by the display), 480p, 720p, 1080i, 1080p, or 4K.

    HDMI (v1.4): The TX-NR818 has eight HDMI v1.4 inputs (7 rear/1 front). The front jack is fixed as the Aux input, while the six rear panel jacks are assignable to any of the other inputs. There are two HDMI monitor outputs; both outputs can be active simultaneously and will pass digital audio and video. The HDMI inputs will support uncompressed standard or high definition digital video along with the following audio signals: 2-channel linear PCM, Multichannel linear PCM, and Bitstream. The receiver's HDMI circuitry allows the receiver to output an HDMI audio signal from its speaker outputs, headphone out, and HDMI out so you don't have to run additional analog or digital cables. The HDMI inputs accept 480i, 480p, 720p, 1080i, and 1080p video signals. The analog video inputs (composite/component) are converted to HDMI for transfer to the TV.

    Note: The 2 HDMI outputs display the same video signal and can be used simultaneously.

    Front-Panel HDMI (MHL) Port: The front-panel HDMI port is designed for the connection of select mobile phones and other portable electronic devices using the new MHL standard. Simply plug your MHL compatible smartphone into the receiver's front-panel HDMI port using the HDMI cable that is included with your mobile phone. MHL allows you to display full 1080p video and still images on your HDTV with up to 7.1 channels of surround sound. By programming the A/V receiver's supplied remote control with the appropriate numeric code, you can use it to operate your connected MHL-enabled smartphone. Your connected smartphone is also recharged upon connection, and no separate power supply for the device is necessary while connected to the receiver. The A/V receiver is compatible with Android smartphones from Samsung, HTC, and LG (must support MHL standard); as of 6/7/2012.

    3D-Compatible: The TX-NR818's HDMI v.1.4 connections will accept 3D video from your 3D-ready Blu-ray player and output the video signal in 3D to your 3D-ready flat-panel television.

    x.v.Color: The AV receiver supports x.v.Color, offering a wider color range than the current broadcast standard. For the x.v.Color feature to be useful, the entire video production chain must be compatible (camera-editing-format-player-display).

    Deep Color: The Onkyo receiver also supports Deep Color which allows the color depth of video signals passing through HDMI to be raised. The number of colors that could be expressed by 1 pixel was 24 bits (16,777,216 colors) with a standard HDMI jack. However, the number of colors which can be expressed by 1 pixel is 36 bits with a Deep Color enabled HDMI jack. Since the gradation of the depth of a color can be expressed more finely with more bits, continuous color changes can be more smoothly expressed. For the Deep Color feature to be useful, the entire video production chain must be compatible (camera-editing-format-player-display).

    HDMI Through: When enabling the HDMI Through function, regardless of whether the AV receiver is "on" or in "standby" both audio and video streams from an HDMI input will be output to your television, via the receiver HDMI monitor output. You can select between 3 HDMI Through functions modes.

    • Auto: Detects the signal and automatically selects the input sources.
    • Source: Selects the input source (BD/DVD, VCR/DVR, CBL/SAT, Game, PC, Aux, TV/CD, Port) for which the HDMI Through function in enabled.
    • Last: The HDMI Through function is activated on the input source selected at the time of setting the AV receiver to the "standby" mode.

    ARC (Audio Return Channel): This feature allows audio to be sent from your compatible HDTV to your receiver through the same HDMI cable already being used to send audio and video to your HDTV. This eliminates the need for extra cables connected to your television. The receiver's main HDMI monitor output supports the ARC function, while the sub HDMI monitor output does not.

    InstaPrevue: InstaPrevue technology provides a live video thumbnail of the available content on your devices connected to the receiver via HDMI. As a result, you can preview audio/video streams coming from up to 5 HDMI inputs previously assigned to input selectors on your HDMI connected TV. Even with multiple components connected to receiver through HDMI, you can easily switch between inputs as their previews are displayed on a single screen on your television. You can even use the InstaPrevue feature for Picture-in-Picture. You can specify the number of preview thumbnails, as well as their positioning on-screen.

    Note: If no video signal are present, the thumbnails will be filled in black. With 3D video signals, the image may not be properly rendered on the preview thumbnails of InstaPrevue.

    Auto Lip Sync: The Lip Sync function can automatically synchronize HDMI audio and video that has gotten out of sync due to the complex digital video processing being performed by your HDMI-compatible TV. With HDMI Lip Sync, the audio delay required to synchronize the audio and video is calculated and applied automatically by the AV receiver.

    A/V Sync Control: Occasionally, you may need to manually adjust the audio/video signals that are not properly synchronized manually. Typically when using a progressive scanning DVD player. You can correct this by delaying the audio; options are 0 (no delay) to 800 milliseconds, in 10 millisecond steps.

    Front-Panel AV Input: The receiver features a front-panel AV input for easily connecting a portable device; there are stereo RCA, composite video, optical digital, and HDMI jacks.

    Picture Adjust: Using the Picture Adjust feature, you can adjust the picture quality and reduce any noise appearing on your TV screen.

    • Wide Mode: Auto, Full, Zoom, Wide Zoom, or 4:3.
    • Picture Mode: Custom (all settings can be performed manually), ISF (Day/Night), Cinema (for movies), Game (for gaming), Streaming (reduces mosquito/block noise), Through (changes resolution), Direct (no adjustment).
    • Picture Settings: You can change the following settings to be suitable for your movie or game screen.
      • Picture Adjustments: You can adjust Brightness (Red/Green/Blue), Contrast (Red/Green/Blue), Hue, Saturation, Color Temperature, and Gamma (RGB) of picture.
      • Game Mode: If video signal delay occurs during playback on a video component (i.e., game console), select the corresponding input source and set the "Game Mode" setting to "On". The delay will decrease but in return the picture quality will become poor.
      • Film Mode: Video (Film Mode detection is not applied and the input signal is handled as a video source) Auto (detects whether the input signal is a video or a movie. If it is a movie, the appropriate conversion is applied).
      • Edge Enhancement: With Edge Enhancement, you can make the picture appear sharper.
      • Noise Reduction: With this setting, you can reduce noise appearing on the screen.
      • Mosquito NR: With Mosquito Noise Reduction, you can remove the shimmering or haziness that sometimes appears around objects in the picture. Mosquito noise can be an issue with overly compressed MPEG content.
      • Block NR: With Block Noise Reduction, you can remove the block distortion that sometimes appears in the picture. Block noise can be an issue with overly compressed MPEG content.

    ISF (Imaging Science Foundation) Video Calibration: The Onkyo TN-NR818 offers ISF (Imaging Science Foundation) video calibration for optimal video performance. The receiver has been designed to incorporate setup and calibration standards established by the Imaging Science Foundation (ISF). The ISF has developed carefully crafted, industry-recognized standards for optimal video performance and has implemented a training program for technicians and installers to use these standards to obtain optimal picture quality from the receiver. Accordingly, Onkyo recommends that setup and calibration be performed by an ISF Certified installation technician.

    Network & Tuner Functions

    Network-Ready: The Onkyo TX-NR818 A/V receiver is network-ready, which means you can connect it to your home network with a standard Ethernet cable and enjoy the music files stored on your computer or media server. If your network is connected to the Internet (broadband), you can also enjoy Internet radio.

    Ethernet Connection (optional WiFi): Connecting the A/V receiver's Ethernet (RJ-45) port to a 100Base-TX switched Ethernet network is recommended for best results. Use a shielded CAT-5 Ethernet cable to connect the receiver to your home network.

    Media Server Playback: You can play back music files stored on your computer or media server (the TX-NR818 is DLNA certified). Compatible music file formats include MP3 (8-320 kbps), WMA (5-320 kbps), WMA Lossless (16/24-bit), WAV (8/16/24-bit), AAC (8-320 kbps), FLAC (8/16/24-bit), Ogg Vorbis (48-500 kbps), LPCM (8/16/24-bit), Apple Lossless (16/24-bit), DSD, and Dolby TrueHD. Each folder on the server may contain up to 20,000 music files, and folders may be nested up to 16 levels deep. The following media servers are compatible:

    • Windows Media Player 11 or 12
    • Windows Media Connect 2.0
    • DLNA (ver.1.5)-Compatible Media Server
    Note: If the operating system of your personal computer is Windows 7, Windows Media Player 12 is already installed. If the operating system of your computer is Windows Vista, Windows Media Player 11 is already installed.

    Internet Radio: The Onkyo TX-NR818 lets you access various Internet Radio providers through its Ethernet network connection. The TX-NR818 will display station name and program-related information, such as - artist name, song title, and elapsed playing time. You can preset up to 40 of your "favorite" Internet radio stations for easy recall.

    Music Service Description
    vTuner vTuner offers easy browsing of internet radio stations and podcasts. vTuner enables access to web-based radio stations and podcasts via an extremely reliable online database with a wide variety of content. You can browse content by Genre, Location, Language, and Favorites.
    Pandora Pandora is a free, personalized Internet radio service that plays the music you know and helps you discover music you'll love. You can select Internet radio stations by Artist, Song, or Genre.
    Rhapsody Rhapsody is a streaming music subscription service (starting a $10 per month) that allows you to play the full-length songs you choose on demand from a collection of over 10 million songs, without ads and without having to purchase or download the music.
    SiriusXM SiriusXM Internet Radio lets you listen to over 120 channels of commercial-free music, talk radio, news, sports, and more.
    Slacker Slacker is a free, personalized Internet radio service that lets you choose the music you want to listen to. You can choose Internet radio stations by genre, or create custom station by Artist name or Song title.
    Last.Fm is a free music recommendation service that lets you discover new music you like, based on the music you already listen to. The website is filled with tons of information on artists, albums and tracks; including more music similar to them, charts, and other statistics.
    Spotify Spotify is a digital music service that gives you on-demand access to one of the largest music libraries in the world (over 15 million tracks and counting). Spotify makes it easier than ever to discover, manage, and share music with your friends. You can browse music by artist, album, track, or most popular; create your own music library with customized playlists; as well as share your music via Facebook, Twitter, or Windows Messenger.
    AUPEO! AUPEO! Personal Radio is a music streaming service based in Berlin that is available worldwide. With AUPEO! Personal Radio, you can listen to free music on the web. AUPEO! lets you play lots of music and choose the playlist based on your personal taste. The basic concept is based on personal music DNA, which allows you to 'love' or 'ban' songs. The highly advanced software then remembers this and adjusts as necessary. As a result, we offer over 100 compilation genre channels, as well as thousands of artist channels. Listen to music online based on your tastes and preferences or use our one-of-a-kind 'Mood Tuner' to fit how you're feeling.
    Note: To receive Internet radio, your Ethernet network must have Internet access. Internet URLs in the following formats are supported: PLS, M3U, and podcast (RSS). However, depending on the type of data or audio format used by the Internet radio station, you may not be able to listen to some stations.

    AM/FM Tuner: With the built-in tuner you can enjoy AM and FM radio stations. You can store your favorite stations as presets for quick selection. You can store a combination of up to 40 of your favorite FM/AM radio stations as presets.

    PC Input: The AV receiver is equipped with a rear-panel PC input (15-pin D-sub) which allows you to connect your PC to the AV receiver and use your HDMI connected television as a computer monitor.

    Firmware Updates: Future firmware updates are available from the Onkyo website through the receiver's Network or USB connection. The tested TX-NR818 contained firmware version 1020-1100-0000-0000 (as of 6/7/2012). Visit Onkyo's online Download Center for the latest firmware updates.

    USB/iPod Integration

    Dual USB Ports: A USB MSC (Mass Storage Class) memory device can be connected to the receiver's front-panel or rear-panel USB (type-A) terminal, allowing you to play music files through the receiver. Your USB MSC device must be formatted in FAT16 or FAT32. Compatible music file formats include MP3 (8-320 kbps), WMA (5-320 kbps), WMA Lossless (16/24-bit), WAV (8/16/24-bit), AAC (8-320 kbps), FLAC (8/16/24-bit), Ogg Vorbis (48-500 kbps), LPCM (8/16/24-bit), Apple Lossless (16/24-bit), DSD, and Dolby TrueHD. Up to 20,000 folders can be displayed, and folders may be nested up to 16 levels deep. You can control basic playback functions of your connected USB device's music from the included remote control, such as - Folder/File Select, Play/Pause, Stop, Fast Forward/Rewind, Skip (next/previous), and Repeat/Random. USB portable audio players that can be charged via USB will be charged when plugged into the AV receiver's USB port; even in standby mode (the front-panel USB port is rated at 5V/1A, while the rear-panel USB port is rated at 5V/0.5A).

    Note: USB hubs and USB devices with hub functions are not supported. MP3 players containing music files that are managed with special music software are not supported.

    iPod/iPhone Direct: Using a USB-to iPod-Dock cable plugged into the front-panel USB port, music can be played directly from an iPod/iPhone, bypassing the iPod/iPhone's DAC. To view the video content from your iPod/iPhone, connect it to the receiver's front-panel USB port and composite video or HDMI input using the official Apple Composite or HDMI AV Cable (sold separately). Your connected iPod/iPhone is controlled by the receiver's remote, or you can continue to control your iPod/iPhone from its clickwheel or touchscreen. Song/artist information and elapsed time are displayed on the receiver's front-panel display and your connected TV screen (via HDMI only). You can navigate your iPod/iPhone's music using the on-screen menu and remote control by Playlist, Artist, Album Genre, Song, or Composer. Video stored on your iPod/iPhone can be searched by Movie, Music Video, TV Show, Video Podcast, Rented Movie, or Video iTunesU. You can also shuffle the playback of your iPod/iPhone's music and view the Now Playing screen. Your iPod/iPhone's battery will be charged while connected to the receiver. iPod/iPhone compatibility is as follows (9/24/2013):

    iPod/iPhone Model Generation Tested Version Media Type Control Type Display Type Charge
    Audio Video Remote iPod/iPhone Album Art Artist/Song Text Track Info
    video 5th 1.3 Y O Y N Y Y Y Y
    classic 80GB 1.1.2 Y O Y Y Y Y Y Y
    120GB 2.0.1 Y O Y Y Y Y Y Y
    160GB 2.0.4 Y O Y Y Y Y Y Y
    nano 1st 1.3.1 Y N Y N Y Y Y Y
    2nd 1.1.3 Y N Y Y Y Y Y Y
    3rd 1.1.3 Y O Y Y Y Y Y Y
    4th 1.0.4 Y O Y Y Y Y Y Y
    5th 1.0.2 Y O Y Y Y Y Y Y
    6th 1.2 PC Y N Y Y Y Y Y Y
    7th 1.02 PC Y N Y Y Y Y Y Y
    touch 1st 2.2.1 Y O Y Y Y Y Y Y
    2nd 4.2.1 Y O Y Y Y Y Y Y
    3rd 5.1.1 Y O Y Y Y Y Y Y
    4th 6.1.3 Y O Y Y Y Y Y Y
    5th 7.0 Y O Y Y Y Y Y Y
    iPhone 2G 3.1.3 Y O Y Y Y Y Y Y
    3G 4.2.1 Y O Y Y Y Y Y Y
    3GS 5.1.1 Y O Y Y Y Y Y Y
    4 7.0 Y O Y Y Y Y Y Y
    4S 7.0 Y O Y Y Y Y Y Y
    5 7.0 Y O Y Y Y Y Y Y
    5C 7.0 Y O Y Y Y Y Y Y
    5S 7.0 Y O Y Y Y Y Y Y
    iPad 1 5.1.1 Y O Y Y Y Y Y N
    2 7.0 Y O Y Y Y Y Y N
    3 7.0 Y O Y Y Y Y Y N
    4 7.0 Y O Y Y Y Y Y N
    mini 7.0 Y O Y Y Y Y Y Y
    Note: Apple iPod/iPhone software updates may change functionality results. If you download a newer software version, you may need to reset the unit and your iPod/iPhone to regain functionality. If this doesn't work, you may need to wait until a newer software update is available.

    Optional iPod/iPhone Video Dock: By connecting the optional Onkyo DS-A4 iPod Dock (580DSA4, sold separately) to the Onkyo AV receiver, you can view movies, music videos, TV shows, and video podcasts from your iPod/iPhone on your connected TV. Component or composite video connectivity ensures a stable, high-quality video signal output. The DS-A4 supports video output from the iPod video (5th gen), iPod classic (80/120/160GB), iPod nano (3rd/4th/5th gen), iPod touch (1st/2nd/3rd/4th gen), and iPhone (2G/3G/3GS/4S).

    Convenience Features

    On-Screen GUI (via HDMI): The Onkyo AV receiver offers an on-screen setup menu (GUI) through its HDMI output. The on-screen display offers multiple language text, such as - English, French, Spanish, German, and Italian. If your TV is connected to the composite video or component video monitor output, you will need to use the AV receiver's front-panel display when changing settings.

    Hidden Front-Panel Controls: The majority of the receiver's front-panel control are hidden behind a manual fold-down panel. This gives the AV receiver a very clean, sleek look.

    Multi-Zone: The TX-NR818 offers three Zones; a multi-channel audio/video system in your main listening room (Main Zone), a stereo audio only system in a second room (Zone 2), and another stereo audio only system in a third room (Zone 3).

    • Zone 2: Zone 2 allows playback of a separate analog source in 2-channel stereo in an additional room of your home. Zone 2 features line-level outputs and speaker outputs. This way, Zone 2 can be powered by a separate integrated amplifier (keeping 7.2ch playback in your main room) or by the TX-NR818's built-in amplifier (limiting the main room to 5.2ch). When powering Zone 2 with the receiver's built-in amplifier, listening modes that require surround back or front high/wide speakers are unavailable. You cannot power Zone 2 with the receiver's built-in amplifier, if you are bi-amping your front speakers. The volume of Zone 2 is controlled from the receiver when using the speaker outputs and from your add-on integrated amp when using the line-level outputs.
    • Zone 3: Zone 3 allows playback of a separate analog source in 2-channel stereo in a third room of your home. Zone 3 features line-level outputs and speaker outputs. This way, Zone 3 can be powered by a separate amplifier (keeping 7.2ch playback in your main room) or by the TX-NR818's built-in amplifier (limiting the main room to 3.2ch).  When powering Zone 3 with the receiver's built-in amplifier, listening modes that require surround/surround back or front high/wide speakers are unavailable. You cannot power Zone 3 with the receiver's built-in amplifier, if you are bi-amping your front speakers. The volume of Zone 3 is controlled from the receiver when using the speaker outputs and from your add-on integrated amp when using the line-level outputs.
    Note: *Compatible Sources - Only Tuner, analog, USB, and Network audio sources can be sent to Zone 2 or Zone 3. You must currently be listening to a USB device or Network audio source in the Main Zone to initially select USB or Network as a source in Zone 2 or Zone 3 (then you can switch the Main Zone to any source you desire).  *Incompatible Sources - You cannot select different AM/FM radio stations or listen to USB and Network content in separate Zones at the same time. Optical/coaxial digital and HDMI audio sources are not output to Zone 2 or 3. You cannot output any video signal to Zone 2 or 3.

    Whole House Mode: The Whole House Mode is useful when you want to simply add extra background music to your home party. This mode allows you to enjoy the same stereo music as the main room in separate rooms (Zone 2/3). The Whole House Mode selects the same input source for Zone 2/3 as the main room. During the Whole House Mode, stereo playback is automatically selected for all zones. The Main Zone & Zone 2/3 will play at the same volume level.

    Name Edit: You can enter a custom name for each individual input selector and radio preset for easy identification. When entered, the custom name will appear on the display. This function cannot be used for the Network and USB input selectors.

    Display Dimmer + Screen Saver: The display brightness has three settings; Dim, Dimmer, and Normal.  If there is no video signal on the current input source and no operation for a specific time, a screen saver automatically comes on. You can set the time (3min/5min/10min/off) until the screen saver activates itself. Once active, the screen saver will go off and the screen will return to its previous state if the AV receiver is operated in any way.

    Auto & Hybrid Standby: The AV receiver will automatically go into Standby mode, if there is no operation for 30 minutes with no audio/video signal input. The Onkyo TX-NR818 features "Hybrid Standby" mode to save energy and provide greater levels of convenience. Hybrid Standby Mode provides "HDMI through" functionality and maintains a local network connection while the receiver is essentially powered down. This allows the user to watch TV without turning the whole surround system on. Furthermore, when on Hybrid Standby, the home theater may be powered up from "cold" using the Remote Apps for iPod touch/iPhone and Android.

    Sleep Timer: From the remote, you can set the unit to automatically turn off after as much as 90 minutes or as little as 10 minutes; choices are presented in 10 minute increments.

    Optional Bluetooth Adapter (sold separately): The Onkyo UBT-1 Bluetooth USB Adapter (580UBT1, sold separately) lets you wirelessly stream music from your Bluetooth-enabled smartphone, portable audio player, tablet, laptop, or PC to the Onkyo A/V receiver. The Onkyo UBT-1 is fitted with a male USB (type-A) connector which plugs into the Onkyo receiver's USB (type-A) port. The Onkyo UBT-1 is Bluetooth version 3.0 certified and lets you wirelessly stream music from many Bluetooth-enabled devices supporting A2DP (Advanced Audio Distribution Profile). The Onkyo UBT-1 is equipped with apt-X, an audio coding technology that works within Bluetooth to wirelessly deliver CD-quality audio from your Bluetooth-enabled device to the Onkyo A/V receiver.

    Note: Due to the differences in Bluetooth technology, some Bluetooth enabled devices may be incompatible, function improperly, or may not support all features when used with the Onkyo UBT-1.

    Remote Control

    Multibrand/Learning Remote (w/ Macros): The supplied wireless remote is a multibrand/learning remote. The remote is pre-programmed to operate popular brands of equipment including DVD players, DVD recorders, Blu-ray players, VCRs, TVs, Cable boxes and Satellite receivers. Also, the remote can learn up to 32 commands from infrared remotes of other components. You can sequentially operate Onkyo components via simple commands from a single-button press, using the included IR remote control. There are three Activities buttons (My Movie/My TV/My Music) that can be programmed to perform a sequence of commands with just one button press; each macro button can perform up to 32 commands.

    HDMI Control: This function allows CEC-compatible components (Toshiba REGZA-LINK TV/Sharp TV) or RIHD-compatible components connected via HDMI to be controlled with the TX-NR818. The AV receiver offers the following CEC HDMI controls.

    • The AV receiver will enter Standby mode when the power of the TV is turned to Standby.
    • You can set on the menu screen of the TV to either output the audio from the speakers connected to the AV receiver, or from the speakers of the TV.
    • It is possible to output the audio/video from the antenna or from the input jack of the TV from the speakers connected to the AV receiver.
    • Input to the AV receiver can be selected with the remote controller of the TV.
    • Operations such as volume adjustment or similar for the AV receiver can be performed from the remote controller of the TV.

    Remote Inputs/Outputs: The TX-NR818 contains RI Control, IR Remote, 12V trigger, and RS-232C connections.

    • RI Remote Control Jack: The 1/8" RI remote control jack allows you to connect this receiver to other compatible Onkyo components.
    • IR Input/Output: The 3.5mm IR input jack allows you to control the receiver without line-of-sight access using an optional IR remote control system and locating the remote sensor in sight. The 3.5mm IR output jack allows you to send the control signals to an additional components.
    • 12 Volt Trigger: The two 3.5mm minijack outputs can be connected to the 12-volt trigger input on a power amplifier in Zone 2 or Zone 3. When the zone is turned on, a 12-volt trigger signal is output.
    • RS-232C Port: The TX-NR818 has an RS-232C port for connection to external control systems from companies such as AMX or Crestron.

    Remote Apps for Apple iOS Devices and Android Smartphones: The Onkyo Remote App 2 for iPod touch/iPhone and Onkyo Remote for Android provide an alternative way to operate Onkyo network A/V receivers. A simple yet powerful Graphical User Interface allows the user to control input sources, adjust audio settings, and control playback across multiple zones in the home, from anywhere within wireless range.

    • Remote App For iPod touch/iPhone: The Onkyo Remote App for iPod touch and iPhone is available as a free download from the online Apple App Store. The Onkyo Remote App for iPod touch and iPhone provides an intuitive way to operate the Onkyo AV receiver via your home network. From your iPod touch/iPhone's touchscreen, you have the ability to control input sources, adjust audio/video settings, and enjoy your content seamlessly. The Onkyo Remote App for iPod touch and iPhone is compatible with the iPod touch/iPhones (running iOS 4.2 or later). The Onkyo AV receiver and iPod touch/iPhone must be connected to the same network.
      • Intuitive GUI: The Remote App's graphical user interface (GUI) lets you see menus for input source, network source, or radio station, and make your selection accordingly.
      • Menu Control: Selecting the Home Menu feature on your iPod touch/iPhone makes the receiver's main menu page appear overlaid on your home theater display. You can then access a variety of menus that let you adjust settings on the connected Onkyo receiver.
      • Volume & Tone Control: Onkyo's Remote App makes smart use of the accelerometer inside your iPod touch or iPhone. Simply tilt the iPod touch/iPhone right or left to turn the volume up or down. The app also lets you adjust bass & treble levels, and select dedicated listening modes, via your iPod touch/iPhone's touchscreen interface.
      • Audio/Video Information: Your iPod touch/iPhone offers a variety of useful information when you want to know more about the content playing back through your system. You can quickly check if your audio content is encoded as stereo or multichannel, for example, or whether your video content is in standard or high definition.
    • Remote App for Android: The Onkyo Remote App for Android is available as a free download from the online Android Market. Onkyo's Remote App for Android allows you to wirelessly stream audio stored on your Android phone to the Onkyo AV receiver over your home network. The app operates over a wireless LAN connection and enables a range of remote control functions; such as volume and tone control, as well as input selection. It also lets you seamlessly browse networked content and navigate menus using the touchscreen GUI on your Android phone. Onkyo's Remote App for Android is compatible with Android OS 2.1 or later.
      • Sleek GUI: The Remote App's graphical user interface (GUI) makes it extremely east and intuitive to operate. Use simple menus to choose an input source and one of three different listening modes; including music, movies, or games. It's also easy to make a full range of tone and speaker adjustments.
      • Easy Setup Menu: Selecting the setup menu feature on your Android phone makes the Onkyo AV receiver's main menu page appear overlaid on your home theater display. You can then access a variety of menus that let you adjust settings on the connected Onkyo receiver.
      • Wireless Music Streaming: Operating over a wireless local network, the app allows you to stream music stored on your Android phone to the Onkyo network AV receiver. Music played through the Onkyo receiver gains far greater power and fidelity. Support for WMA and FLAC formats depends on the model of Android phone.
      • Multi-Zone Control: Using the Remote App, you can control output in separate zones in a multi-room distributed audio setup. The app lets you choose the playback source for up to 2 zones.

    Our Product Research Team

    At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

    Q & A

    Customer Q&A

    1 question already asked

    HI Steve O I have owned several Onkyo receivers over the years including the 818 and and older model - both which have HDMI inputs. I have never had a problem with the receivers. I actually purchased the 818 over the equivalent "professional" model (integra) my a/v guy was trying to convince me to buy as it had more power and features for slightly less money. hope this helps. [ RICHARD A  Dec 15, 2013 ]
    I've had my 818 since March of this year and no problems. I am very happy with it. I've owned 2 other Onkyo AV receivers. The TX-SR707 had the "Ticking" problem after having had it for only a few months. I had to do without a receiver for several months while it was at a repair center. When I got it back it still had the "Ticking" problem. Onkyo finally agreed to replace it with the TX-SR800 which I kept for 10 plus years. It worked flawlessly. I sold it when I purchased the 818. The guy I sold it to loves it. I very happy with the 818. No HDMI issues at all. I believe that problem with the HDMI board is fixed in the 818. In fact I use the 818 as my HDMI switcher to my Samsung UN65F800 HDTV. [ MICHAEL J  Dec 06, 2013 ]
    I did lose sound replaced the hdmi cable and that fixed it. I think it may be a setting issue. The problem is the manual it sucks. so I just make it work [ JAMES  Dec 06, 2013 ]
    Hi Steve, honestly I can't help you because I never put it to use, it didn't fit in the TV cabinet, so I stored it until I buy a more roomy cabinet. [ YASSINE  Dec 06, 2013 ]
    I purchased the 818 in April and have had absolutely no problems with it. I replaced a Samsung unit that lost sound after 2 years. I use my system several hours every day (I'm retired) and am very pleased. I have a Samsung 55" plasma, Samsung 3-D Blu Ray player and Polk Audio speakers that really work well together. Don't be afraid to buy the unit. I compared it to several others prior to making the purchase-one of the deciding factors was the 40# weight of the 818 thanks to heat sinks and heavy duty guts. Hope this helps you. [ PETE  Dec 06, 2013 ]
    Hello Steve so far so good. No problems yet. [ MICHAEL  Dec 06, 2013 ]
    I have not had any problems with any of my HDMI hook ups. all work very good. I have two HD Dish receivers and one Bluray player and one Roku three player hooked with HDMI cables. All work very good. My Onkyo plays all the time. My wife cant get out . so she watches it all the time. I have very good set up . Seven speakers plus two Subs. Sounds great. Plus 55in Plasma top line Tv picture Quality great. no matter what I play I get very good 1080p. Of course I adjust settings on my tv. I use Deoxit Cleaner plus Deoxit Gold on all my HDMI cables. Great picture. I have been with Crutchfield a lot of years always good service. James R [ JAMES R  Dec 06, 2013 ]
    I have not had any issues with my 818. It is performing superbly. [ SAMER  Dec 06, 2013 ]
    I have had no problem of any kind with my 818. It's a very fine receiver. My previous Onkyo receiver, which was the equivalent of the 818 at the time, lasted me almost 20 years. [ CARLA J  Dec 06, 2013 ]
    3 months no issues. Good luck [ BILLY R  Dec 06, 2013 ]
    My 818 has not had any problems so far. I will say though, this is my second 818. The first 818 I received (from another source, not Crutchfield) had no sound. No sound from the speaker terminals or headphone. I returned and purchased the same model from Crutchfield and am extremely satisfied with the 818. Tremendous sound AND picture quality. Highly recommend!!! [ JAMES  Dec 06, 2013 ]