Onkyo designed the TX-SR504 to deliver cinematic, 360º sound for all your movies, TV shows, and music. This receiver teams up seven channels of Onkyo's acclaimed high-current amplification, advanced surround processing, and rugged Onkyo construction. The result is a dynamic, enveloping home theater experience every time you turn it on.

To add XM Radio reception to your listening options, you just need an optional XM Mini-Tuner package and an XM subscription. This gives you access to more than 170 exciting XM Satellite Radio channels. The 'SR504 is also one of the first receivers to offer Neural Surround decoding, which lets you enjoy XM's new HD channels in true surround sound. You can also view channel, artist, and song information on your TV, and change channels using the receiver's remote control.

The 'SR504 also lets you add Onkyo's optional DS-A2 control dock to enjoy listening to tunes on your iPod® through your stereo system. The DS-A2 features a video output that lets you view your iPod's photos and videos on a TV. Plus you can use the receiver's remote to control your player while it's docked.

You get inputs and outputs to hook up plenty of gear like your DVD player, cable box, VCR, CD changer, and more. Component video inputs let you switch between high-resolution video sources like an HDTV tuner and a DVD player while maintaining great picture quality. And the multibrand remote with learning capability gives you easy control of your whole system.

The 'SR504 also lives up to Onkyo's reputation for quality receiver construction inside and out. Advanced digital-to-analog converters bring out all the nuances in your digital movies and music. And the sturdy, anti-resonant chassis and oversized internal components keep your multichannel sound clear and dynamic at all times.

    Product Highlights:

    • 75 watts x 7 into 8 ohms (20-20,000 Hz) at 0.08% THD
    • Dolby® Digital EX, DTS-ES® and Dolby Pro Logic® IIx decoding
    • XM Satellite Radio Ready (requires XM subscription and optional XM Mini-Tuner package)
    • Neural Surround decoder for XM's HD Surround channels
    • iPod integration (requires optional Onkyo DS-A2 control dock)
    • Wide Range Amplifier Technology
    • 192kHz/24-bit DACs for all channels
    • CinemaFILTER
    • component video switching: 3 in, 1 out (50MHz bandwidth)
    • digital inputs: 3 optical, 1 coaxial
    • 2 audio inputs
    • 4 A/V inputs (including 3 S-video and 1 front-panel)
    • 7.1-channel analog audio preamp input
    • multibrand remote
    • 2 sets of main speaker outputs
    • banana plug-compatible speaker posts for all main-room speakers
    • high-current, low-impedance amp design
    • aluminum front panel
    • oversized power transformer, filter capacitors and heat sinks
    • no phono input
    • 30 AM/FM presets
    • 17-1/8"W x 5-15/16"H x 15-1/2"D
    • warranty: 2 years
    • Our 60-day money-back guarantee

    Receivers: Your ticket to sensational sound

    Your receiver powers your speakers and lets you connect and select your entertainment sources. But a great receiver does a lot more — it ignites your emotions. From the passion of a favorite musical artist, to the crossfire of a super-charged movie soundtrack, to the intensity and immersion of a fast-paced video game, your receiver is the key to experiencing and enjoying it in full.

    Hands-on research

    What's in the box?

    Download owner's manual

    • Silver AM/FM/Dolby Digital/DTS receiver
    • Wireless remote control (RC-647M)
    • 2 "AA" batteries
    • AM loop antenna
    • FM wire antenna (with push-on "F" connector)
    • Plastic speaker terminal wrench
    • Instruction Manual (English)
    • Quick Guide
    • Remote control code chart
    • Product Registration/Warranty Card
    • Interactive iPod dock information
    • XM Radio Connect & Play information
    • Sheet of self-adhesive cable labels
    • "Caution!" sheet (concerning speaker terminals)
    • "Caution!" sheet (concerning Optical Digital Audio jacks)

    Product Research

    Features
    Remote Control
    Input and Output Notes

    Features

    WRAT (Wide Range Amplifier Technology): This technology uses low-negative-feedback circuit topology for accurate signal reproduction, improved dynamic signal-to-noise ratio, and better delivery of power peaks.

    Component Video Switching: In addition to composite and S-Video switching, this unit can switch between high resolution component video sources. There are 3 component video inputs and 1 component video output; each input and output has jacks labeled "Y", "Pb" and "Pr". The component video inputs and outputs have a bandwidth of 5Hz to 50MHz.

    Digital-to-Analog Converters (DACs): To decode and playback high-resolution recordings, this receiver is equipped with Linear PCM 192kHz/24-bit DACs on all channels.

    Speaker Distance: The distance from your listening position to each speaker can be set in the receiver. The front speaker distance can be set from 1 to 30 feet in 1-foot increments. The center and subwoofer settings can be up to 5 feet more or 5 feet less than the distance you set for the front speakers. The settings for the surround left, surround right, surround back left, and surround back right speakers are each individually adjustable, and they may be up to 5 feet more or 15 feet less than the distance you set for the front speakers.

    Speaker Levels: You can manually adjust the level of individual speakers during playback between -12dB and +12dB, and -15dB to +12dB for the subwoofer. These adjustments are temporary, and will be canceled when the receiver is turned off.

    Double Bass: You can enhance the bass output by activating the Double Bass function. This function allows you to feed bass frequencies to the front left and right channels and to the subwoofer. Double Bass can be set only when the subwoofer is set to On, and the front speakers are set to Large.

    Adjustable Crossover: This receiver has a built-in high-pass crossover for the speaker system. This setting is available when you tell the receiver that there is a subwoofer being used. The frequencies that you can choose from are: 40, 50, 60, 80, 100, 120, 150, and 200 Hz. Frequencies lower than the set crossover point are output by the subwoofer.

    XM Ready: Using the optional XM Mini Tuner, the Mini Tuner Home Dock and an XM subscription, you can take advantage of the variety and sound quality of XM Satellite radio. XM offers over 170 digital channels of music, news, sports, and talk radio and even has weather and traffic information in several major markets. The channel number, channel name, artist name, and song title are listed on the TX-SR504's display and on the connected TV monitor. XM stations are stored as presets and recalled in the same way as AM and FM stations.

    iPod Compatible: The DS-A1 or DS-A2 Remote Interactive Dock for iPod (item #'s 580DSA1 and 580DSA2) provide an interface between an iPod digital media player and Onkyo TX-SR504. Once the iPod is docked you can control basic functions such as volume control, play, stop, and skip via the Onkyo system's RI-compatible wireless remote control. The dock also charges the battery in the iPod, and allows you to view digital photos and video on an Onkyo home theater system.

    Assignable Digital Inputs: The TX-SR504 has 4 assignable digital inputs (3 optical/1 coaxial) allowing you to specify which input source is connected to which digital input jack.

    Multi-Channel Input: The receiver is equipped with a 7.1 multi-channel input for compatibility with external decoders or high resolution audio players such as DVD-Audio or SACD. The input consists of left front, right front, center, subwoofer, left surround, right surround, left surround back and right surround back RCA inputs.

    Direct Mode: This mode delivers pure sound with minimum sound quality adjustment and filtration. The sound recorded for the right and left front channels is output to the right and left front speakers only and not output to the subwoofer or rear speakers.

    Listening Modes: This receiver incorporates a wide variety of listening modes to bring you maximum enjoyment from your audio and video software. The listening modes include:

    • Direct: audio from the input source is output directly with minimal processing
    • Stereo: sound is output from the front left and right speakers and subwoofer
    • Mono: sound is output from the front left and right speakers and subwoofer
    • Multi-channel (7.1-channel input)
    • Dolby Pro Logic II: expands any 2-channel source to 5.1 channels
      • Movie
      • Music
    • Dolby Pro Logic IIx: expands any 2-channel source to 7.1 channels
      • Movie
      • Music
      • Game
    • Dolby Digital
    • Dolby Digital EX: expands 5.1-channel Dolby Digital and DTS sources to 6.1 or 7.1-channels
    • DTS
    • DTS 96/24
    • DTS-ES
      • Discrete
      • Matrix
    • DTS Neo:6: expands any 2-channel source to 6.1-channels
      • Cinema
      • Music
    • Neural Surround: surround technology developed for music and adopted by XM Satellite Radio for broadcasts of surround recordings and live events in surround sound.
    • Onkyo Original DSP Modes
      • 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
      • Mono Movie: suitable for old movies and other mono sources
      • All Ch Stereo: ideal for background music
      • Full Mono: all speakers output the same sound in mono

    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.

    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.

    Note: This feature only works with Dolby Digital Encoded software and the depth of the feature will vary based on the individual software package.

    Sleep Function: 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.

    Display Dimmer: You can adjust the brightness of the display. You can select dim, dimmer, or normal brightness.

    Remote Control

    Multi-brand Remote: The supplied RC-647M wireless remote is a multi-brand remote. The remote is pre-programmed to operate Onkyo components, as well as other popular brands of equipment, including DVD players, satellite receivers, cable boxes, VCRs, and televisions.

    Input and Output Notes

    Multi-channel Input: The TX-SR504 has a multi-channel input for connecting a DVD player, a high resolution audio player (such as a DVD-Audio or SACD player), or an external decoder. The input consists of left front, right front, center, subwoofer, left surround, right surround, left surround back and right surround back RCA inputs. You can connect a component using only left and right audio jacks, if desired. In addition, there are composite and S-video jacks for this input. Note: The DVD input is included in the total of 7 A/V inputs.

    Headphone Output: This receiver has a standard 1/4" headphone output on the front panel. All speaker outputs are muted when headphones are plugged in.

    Speaker Outputs: There are color-coded binding post connectors for the left front, right front, center, left surround, right surround, left surround back, and right surround back speakers. The binding posts are not 5-way because a plastic collar prevents their use with spade lugs. The Zone 2 speaker terminals are also binding post connectors. The Front Speakers B terminals are spring clips.

    RI Remote Control Jack: The 1/8" RI remote control jack allows you to connect this receiver to compatible Onkyo components.

    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 open the box, verify contents, 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.

    Onkyo TX-SR504 Reviews

    Average Customer Review:

    11 reviews
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    Onkyo TX-SR504

    Written By phil, Phila. PA on Sunday, April 08, 2007

    Crutchfield Customer Review (What's this?)

    This replaced a 20yr.old Kenwood Amp/Receiver.I forgot what music should sound like. I purchased this to perhaps add surround sound later,and can't believe that it could bring my speakers back to "life". Easy to use & plug in components. Easy on the eye - clean lines. Now there is music on when ever I'm home.

    Great Receiver

    Written By Bill, Bethlehem, PA on Tuesday, March 20, 2007

    Crutchfield Customer Review (What's this?)

    I bought this receiver a couple of weeks ago. Wow! I knew that I made a great decision once I hooked it up. This replaces my 14 year old Pioneer that gave me years of enjoyment. But, this receiver makes everything sound great. I was amazed at the price. Very well worth it! You can't beat Crutchfield in Customer Service and Expertise. Thanks for a great experience.

    So Clean So Powerful

    Written By octavio, chicago, IL on Sunday, March 18, 2007

    i hooked this amp up and the sound difference was like day and night over my sony. This amp is really clean and so powerfull it has a nice warm sound very rich with good treble this amp in my opinion sounds better than my dads amp which he has a denon he paid $500 for i think denon has kind of a flat sound onkyo is alot better.

    The best A/V receiver on the cheap!

    Written By SpanktorTheGreat, Michigan on Friday, March 09, 2007

    Crutchfield Customer Review (What's this?)

    I started out with a Sony STR-DG500 from Circuit City and then I tried a STR-DG600. The Sony receivers are not good compared to the Onkyo. The sound quality and clarity of the Onkyo is way better than the Sony's. The remote can control my HD cable box and my TV. If you are using a Westinghouse TV try using the Sony TV codes for the Onkyo remote. I don't know why, but the Westinghouse codes did not work.

    Onkyo

    Written By John, Greenville, NC on Thursday, February 22, 2007

    Crutchfield Customer Review (What's this?)

    I recently purchase an Onkyo TX-SR504 receiver to replace my old Kenwood receiver. I also purchased a subwoofer at the same time to go with my Bose 301's. The sound is solid, clean and a big improvment. The Onkyo is a great value for the quality and product features. The remote easily operates my TV, VCR and DVD player. ONKYO ROCKS!

    Cructhfield rocks

    Written By Craig, Lakeport, CA on Wednesday, February 21, 2007

    Crutchfield Customer Review (What's this?)

    This Onkyo sounds good and is really about as much receiver as most people will ever need. Quite satisfied with this receiver’s performance, especially considering the price, would recommend to anybody who needs a basic competent surround sound and stereo system.

    Every purchase with Crutchfield has been a good experience. Every time I have used customer service it has been unusually efficient and the sales staff atypically knowledgably; becoming a loyal Crutchfield customer.

    Very nice unit

    Written By Scott, Southern California on Friday, February 02, 2007

    Crutchfield Customer Review (What's this?)

    This is a very nice unit that I use to hook up my DVD player, HD media unit, and HD cable DVR to my TV (which has a limited component-video inputs).

    This unit has the ability to be used as a 5.1 speaker system as well as a 7.1 speaker system, which works for my old setup.

    I am glad to have multiple optical + component-video inputs to get full use out of the other equipment I have.

    Loyal Fan

    Written By Wade, Kansas City on Friday, January 05, 2007

    I love this receiver. Sure there are others in this same price category and some that have possibly more options or features, but I say it is all window dressing. Onkyo makes quality equipment and is easy to setup. The sound clarity and power of the 75W per channel system blew my old (alleged 100W per channel)away. I used to hardly be able to hear the rear speakers with the surround system even when you pushed more power to them. Now my Yamaha speakers never sounded better. It has increased my viewing pleasure of DVDs and HDTV on my Samsung DLP set immensly.

    Great Receiver!

    Written By Yasu, Detroit, MI on Monday, December 25, 2006

    Crutchfield Customer Review (What's this?)

    This Onkyo receiver is great and has enough power to play any speakers loud. I am using this receiver with Bose Acoustimass 6 system and has no problem powering them.

    The connections in the back is great and has many inputs and outputs. They are professional grades.

    It produces clean power with minimal distortion and can be used with 7.1 or 5.1 Home Entertainment Systems.

    Very nice receiver for the money

    Written By wendortb, Indianapolis, IN on Monday, December 11, 2006

    I have owned this receiver for about 2 weeks now and I can say that it sounds awsome for the price. There is plenty of power, all kinds of surround modes, and quite a few inputs. I really love how dynamic it is and how it gives you all kinds of options based on what you like. Right now it is hooked up to some stereo marantz floor speakers and the bass out of them is enough to rattle the ceiling light. My previous receiver (cheap rca home theater in box) never came close to this. I have the receiver hooked up with 6 speakers and the surround is great. This receiver does run warmer than my previous rca so you need to allow it breathing room, but it is well worth it.

    An Awesome machine!

    Written By Amanda, Greenfield, MA on Thursday, July 27, 2006

    Crutchfield Customer Review (What's this?)

    The Onkyo TX-SR504 was a cinch to set up and made all the difference when I was able to use component and optical connections to all my other digital equipment. This is a great addition and has enhanced my viewing quality and sound pleasure of every movie I watch, or stockcar race I tune to. And Oh My....the sound! I'm sitting there at the race, but I'm not in the heat or rain, I'm in my living room. How much better can it get??!

    Get everything you’ll need to enjoy your new Onkyo TX-SR504

    Using a high-quality subwoofer cable helps you get great-sounding bass with movies and music.
    Protect your investment from power surges and interference.
    Connect your components that use the composite video connection.
    Connect your components that require optical digital connections.
    Maintain optimum sound quality with upgraded audio cables.
    Upgrade your antenna for improved reception.
    Have your new equipment installed by qualified professionals.
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