Polk Audio RTi A9

Floor-standing speaker (Cherry)

Item #: 107RTIA9C

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38 Reviews | 1 question - 1 answer

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Audiophile-quality sound from a great-looking tower speaker

Meet the flagship speaker in Polk's newly redesigned RTi Series. The RTi A9 floor-standing tower speaker combines a handsome, real wood veneer finish with the kind of performance that pleases even critical listeners.

Grille off shot

A high-tech approach to accurate sound

Cross-section

An inside view of this speaker's careful driver design.

This speaker's carefully designed drivers undergo laser testing to help identify and eliminate resonance points, ensuring smooth, accurate response. Its asymmetric cabinet helps it deliver rich, clear sound by combating vibration and increasing rigidity. The A9 also includes Polk's exclusive PowerPort® technology that reduces noisy air turbulence and increases low-frequency output. You'll enjoy clear highs, rich bass, and open, natural-sounding midrange.


Additional high-end features

Two sets of gold-plated five-way binding posts let you biamp or biwire the RTi A9 for the best possible sound. An anti-diffraction grille helps it deliver a large, three-dimensional soundstage with pinpoint-accurate stereo imaging. Adjustable spikes provide stability on both carpeted and hardwood floors.

Recommended center channel speaker: Polk CSi A6.
Recommended surround speakers: Polk RTi A3 or FXi A6.

cabinet

The asymmetric cabinet fights vibration for clearer sound.

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Product Highlights:

  • video-shielded
  • bass-reflex (ported) design
  • frequency response 30-26,000 Hz (-3dB)
  • handles 50-500 watts
  • 1" Dynamic Balance® silk/polymer tweeter
  • two 5-1/4" Dynamic Balance polymer composite midrange drivers
  • three 7" Dynamic Balance polymer composite woofers
  • PowerPort Plus technology improves bass response without introducing distortion
  • 8-ohm impedance
  • sensitivity 90 dB
  • dual 5-way binding post terminals
  • real wood veneer finish
  • 10-11/16"W x 48-1/16"H x 21-1/2"D
  • warranty: 5 years
  • Our 60-day money-back guarantee
Priced each

    Floor-standing speakers — still standing tall

    Sure, floor-standing tower speakers buck the industry trend toward smaller, visually inconspicuous speakers, but they're hard to beat if great sound is your primary goal. Tower speakers produce powerful sound with excellent bass, making them a great choice for serious music lovers and for folks who want high-impact home theater.

    Hands-on research

    What's in the box?

    Download owner's manual

    • Cherry floor-standing speaker
    • Detachable black cloth grille
    • 4 Screw-on spike feet
    • Owner's Manual
    • Online registration sheet
    • Polk Audio product brochure

    Features and Specs

    General
    Enclosure Bass Reflex
    Finish Real wood veneer
    Color Cherry
    Tweeter Dome
    Tweeter Size (inches) 1
    Midrange Size (inches) 5.25
    Woofer Size (inches) 7
    Woofer Composition Polymer composite
    Woofer Surround Butyl Rubber
    Built-in Powered Sub No
    Video-Shielded Yes
    Connector Type 5-way post
    Bi-amp Inputs Yes
    Parts Warranty 5 Years
    Labor Warranty 5 Years
    Specifications
    Power Range 50-500
    Frequency Response 30-26k Hz
    Sensitivity 90 dB
    Impedance (Ohms) 8
    Amplifier Power ---
    Height (inches) 48-1/16
    Width (inches) 10-11/16
    Depth (inches) 21-1/2
    Weight 75 lbs

    Product Research

    Driver Technology
    Enclosure Design
    Connections
    Mounting Options
    Dimensions

    Driver Technology

    Dynamic Balance: Dynamic Balance is a proprietary Polk Audio technology using laser imaging to determine what combination of speaker materials create the least amount of resonance. Eliminating resonance in speakers results in a wide, smooth response and low distortion.

    Polymer Composite Woofers: The speaker features three 7" polymer composite woofers. Three 7" woofers have the surface area of a single large woofer with the low mass and acceleration of small woofers, resulting in tighter, more accurate bass response. Each woofer uses a butyl rubber surround.

    Polymer Composite Midranges: The speaker has two 5-1/4" polymer composite midranges for smooth wide-range response with low distortion. For high performance durability, each midrange uses a butyl rubber surround.

    Silk/Polymer Tweeter: The speaker has a single 1" silk/polymer dome tweeter that provides clear, detailed highs. The tweeter features mylar bypass capacitors in the crossovers to extend high frequency response and improve detail and transparency. The tweeter also features low viscosity ferro-fluid cooling with a heat sink on the Neodymium magnet for superior heat dissipation, power handling and reliability.

    Magnetically Shielded: The speakers are magnetically shielded, allowing you to place them near your television without distorting the picture.

    Enclosure Design

    Damped Asymmetric Hex Laminate (DAHLI) Cabinet Design: All-MDF construction with massive asymmetric cabinet bracing ensures a resonance-free enclosure for accurate sound. The asymmetric design is made from a 6-layer laminate with 5 viscous layers to create the optimal shear damping (OSD) system. The elegant styling aside, curved cabinets not only result in a stronger, more rigid and acoustically inert enclosure, but the curved walls also produce less audible coloration from panel resonances.

    Power Port Venting System: The speaker has a rear-firing Power Port venting system built into its back plate for precise deep bass response from the floor-standing speaker's three 7" polymer composite woofers. This venting system allows air velocity to slow gradually, vastly reducing air turbulence, and delivering greater bass efficiency than conventional ports.

    Note: The two 5-1/4" midrange drivers feature a sealed cabinet.

    Anti-Diffraction Grilles: The floating anti-diffraction grilles minimize grille diffraction for spacious, 3-dimensional imaging.

    Connections

    Dual 5-Way Binding Posts: The speaker has two sets of gold-plated 5-way binding posts connected by gold-plated jumpers. Using the dual 5-way binding posts, you can bi-amp or bi-wire the speakers.

    Mounting Options

    Adjustable Leveling Spike Feet: The adjustable leveling spike feet that can be screwed onto the bottom of the speaker's attached base provide stability on any type of flooring. The spike feet adds approximately 0.875" to the speaker's overall height when screwed all the way in.

    Specifications & Dimensions

    Frequency Response: The overall frequency response is 18Hz-27kHz and the -3dB frequency response is 30-26kHz.

    Width: The main body of the speaker is 8.6875" wide but the speakers attached feet extend beyond each side of the speaker, giving the speaker and overall width of 10.6875".

    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.

    Polk Audio RTi A9 Reviews

    Average Customer Review:

    38 reviews
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    Look Amazing, Sound Awesome

    Written By SeanP, Orlando, Florida on Sunday, December 21, 2014

    I purchased these off of someone who bought them through Crutchfield.com. I have them running off a Yamaha Aventage RX-A840 pre-amped to an Emotiva XPA-3 gen2 with 200 watts going to them. I paired them with a JL Audio e112 and they sound incredible.

    I pushed them a little too much when I first got them and popped a tweeter. I called Polk Audio directly (they're in California) and they shipped me a new tweeter for $60, and it was too easy to replace.

    First off, I have not tried them directly through the Yamaha, which is only rated at around 100 watt/channel, so I don't know what they sound like with less power, but the Emotiva definitely seems to open them up. They are a bit bright on the top end, and can sound wispy at times. They definitely need a good quality medium, as they will put all the noise from lesser quality recordings front and center.

    At first I had them paired with a Klipsch R-12SW which has a built in 400 watt amp. The sub hit some low notes and sounded really good, but when I pushed them to higher volumes, believe it or not, the Rti-A9's drowned out the Klipsch completely. THESE BABIES GET LOUD! I cranked One by Mettalica and the Polks were so loud I thought for sure someone in my neighborhood was going to call the cops. I sware I've never heard speakers as loud in a private home in my lifetime. I'm afraid to push them that loud now with the JL, because I know that thing will probably crack my foundation at that volume.

    Pros: VERY LOUD WITH THE RIGHT AMOUNT OF POWER. BEAUTIFUL AND MESMERIZING TO LOOK AT. CRYSTAL CLEAR WITH THE RIGHT SOURCE MATERIAL. EASY TO REPLACE BLOWN DRIVERS.

    Cons: HEAVY, AT 75 LBS A PIECE. THEY NEED A LOT OF ROOM TO BREATH. YOU DON'T WANT TO PUT THESE THINGS TOO CLOSE TO YOUR WALLS. TO REALLY OPEN THEM UP THEY NEED AT LEAST 2 TO 3 FEET OF SPACE AROUND THEM.

    First Impressions

    Written By MSW, Texas on Friday, December 19, 2014

    Crutchfield Customer Review (What's this?)

    I've had these for a little over a week now. They replaced an ancient but well cared for pair of Cerwin Vegas. I purchased them along with a DSW660 12" sub. I have them running bi-wired from an Onkyo TX-NR828. The first thing that was evident was the clarity and brightness. They absolutely require a high quality source or medium. They bring every detail right to the surface. Playing flac files of albums I have long been familiar with revealed exciting new details I had never heard before. On the other hand, playing MP3s and most streaming sources makes you painfully aware of the compression and diminished quality. The subwoofer is an excellent pairing, but needs to turned way down for most music listening. For movies/theater purposes they are outstanding. Soon they will be joined by a CSI A6 and 80 F/X RT surrounds.

    Pros: Amazing clarity, beautiful styling, will go louder than you could possibly need

    Cons: Sometimes a bit on the bright/harsh side, but haven't had them long enough to rule out audio source as biggest factor

    my RTi A9 speaker

    Written By mundy51, Cheverly MD. on Tuesday, June 03, 2014

    Crutchfield Customer Review (What's this?)

    These are the best speaker ever seen and herd in my life! Very heavy. They go good with my Onkyo tx-rn 1010 a 140 watt receiver! They are worth more than what they cost! To me these are some of the best speakers Polk ever made. Flag Ship can't describe these speaker They are the heart of my system and then some!!

    RTi A9 speakers

    Written By richard g, Lexington, ky on Saturday, May 24, 2014

    Crutchfield Customer Review (What's this?)

    These speakers are bright & very lively. They can produce a huge volume of sound with depth and clarity. I am replacing RTA 15tl (1991) which had a smooth low end sound. These speakers are livelier and much more dynamic in the sound presentation. Great for a Theater system

    Pros: Nice fit & finish to the cabinets. Active dynamic sound. Narrow profile. Incredible volume

    Cons: May seem a little bright for the old Album crowd (I am a member)

    Big Bang Boom!!!!!

    Written By Big Bad Legs, Chicago on Saturday, April 26, 2014

    Crutchfield Customer Review (What's this?)

    I have been a music fanatic my whole life and I use different speakers for different types of listening. I have my Klipsch Cornwalls on my "Main" stereo. Thats for thumping my wife and kids out of bed on Sunday morning or when I want to get the most sound out of a recording without blistering the paint on the walls. I have a set of 901s in the basement for the drunks and the kids. I had a commercial Sony Surround sound / DVD player, you know the kind with the plastic speakers and Elmers glued on speaker covers and it was mainly for the kids and it served its purpose at the time. It was finally time to put it out in a garage sale and build again. Kids in school, funds kinda weak, I browsed the bargain bin and found these Polks for a reasonable price. The ad said scratched and banged up floor model. After reading reviews on this brand and model, I liked the spec's and I rolled the dice. When they got here, they were too big for my wife to move.Together we took them out of boxes that looked like crap, we were shocked. They are beautiful and if they say thats banged up, I will eat your hat. These looked brand new, like a piece of modern art. Not B and O modern but for us they were great. Plugged em in to the main stereo for an audition and what I got was "Big Bang Boom"! They sounded great, looked great and they will proudly anchor my new surround system. Keep it up Crutchfield! So far you have a customer for life!

    Pros: Sound great and I haven't even broken them in yet. Look like a piece of furniture. Too heavy for a burglar.

    Cons: Don't leave them for your wife to move by herself or you will get skip for dinner.

    WOW! RTi-9

    Written By MRI3T, USA/Maryland on Thursday, April 10, 2014

    Crutchfield Customer Review (What's this?)

    Unbelievable sound, cabinet quality! These things are like a piece of art to look at!! Unlike me to spend this kind of money on a set of speakers, but I'm very satisfied that I did! Wish I were driving it with an amp with a little more punch (these babies can handle 500w continuous) I have them paired with a PA sub-woofer and it adds a great sound for movies as well. Separately these RTi9's are great, low-end thru high-end! I've never owned high quality speakers b4 & I would definitely recommend these! I also bought these, 1 as an open box, & the other as damaged, neither of them had any visually impairing prob. for me! The grill was messed up on the one, but I prefer them w/o the grill!

    Pros: Everything about them! Probably be the last pair I ever have to buy!

    Cons: Can't find anything yet... They seem to get better with time!

    These speakers ROCK!

    Written By Brewmonkey, San Antonio, TX on Friday, April 04, 2014

    Crutchfield Customer Review (What's this?)

    I replaced a pair of Cerwin Vega CLS-215's with these. I was a bit worried when I ordered the A9's, that they wouldn't produce the type of bass I'm used to with the Vega's. These speakers produce PLENTY of tight, thumping bass! I listen to just about everything except country music, and I've put these speakers through a wide variety of music, and they are just awesome all around. Crystal clear, and very detailed they are. I use them for music only, and they are powered by a 500 wpc amp. They don't seem to be anymore power hungry than the Vega's were, so I would say as long as you have decent gear I think you will be fine powering these with a receiver rated 100-125 (true) RMS, and not the crappy peak ratings some companies use. Anyhow if you are considering these for music, have no fear, buy them!

    Pros: Very detailed, not bright or muddy at all. Plenty of bass when you want it. Very appealing, and in no way an eyesore.(Cherry finish)

    Cons: None. Some people list heavy as a con, but to me this is a pro.

    2.1 setup

    Written By VitaliyG, hampstead, MD on Sunday, March 09, 2014

    Crutchfield Customer Review (What's this?)

    Let me first begin by letting you know my setup. I have a 2.1 setup with a Marantz 7701 Preamplifier and an Emotiva XPA-2 power amplifier. This amp is a beast and the clean power at 300 watts per channel is really opening these speakers up. I have not tried these speakers with only a receiver, but from other peoples reviews it seems that having an additional power amplifier gives you the true capabilities of these speakers. I am using a Polk audio DSW pro 440wi subwoofer. This 8" sub has plenty of power and works great in my living room. I am using good quality wires for all my connections as well. the sub cable is a Sub-X Auioquest, I am using King Cobra XLR cables to connect my Marantz 7701 preamp to the Emotiva XPA-2. And finally I got Audioquest Rocket 44 speaker wire that I am running from the Amplifier to speakers.

    Pros: Good looking and clean crisp sound

    Cons: None so far

    Love These Speakers

    Written By Wes, Durham, NC on Thursday, March 06, 2014

    Crutchfield Customer Review (What's this?)

    These are great speakers at their price point. I'm driving them with a Marantz SR7008 Receiver and using them as left and right front speakers in a 9.2 surround setup. I've set the system up to handle high-res audio files. These speakers are the anchor for the system (also using the Polk subwoofer Pro 660wi.) I could have spent more and gotten more but I am completely satisfied with the outcome with these speakers.

    Pros: There just so darn classy looking! ...as well as being great speakers. Crystal clear highs and lows.

    Cons: None

    Polk rti-a9

    Written By Jim b., Erie,pa. on Friday, December 27, 2013

    Crutchfield Customer Review (What's this?)

    Pollks are now 1 year old and sound so much better now after many tweaks. I started with nad 375 bee intergrated amp then bought another as I felt I wasn't pushing enough power to really hear them let alone feel them. Power was at 330 watts/channel, then added 2 Polk dsw 660 subs,the towers really do sound better with these subs, maybe a little overkill but I can adjust pretty easy with the subs volume and room optimizer. The speakers are a tad forward(midranges) but really excell on keyboards,voices, horns. I made a couple a changes at the speaker wire and clear day double shotguns(silver wire) with jumpers,made all the difference! The sound is super clear, no boom, sound stage very wide, this what I thought the polks would do with tweaks. If u have the time and money this was well worth the upgrade. These speakers have transformed so much, funny,I almost sent them back, but let them break in, then start tweaking interconnects and speakers wire as I think that a major part of what you may discover how those changes really do make all difference. I just recently changed to a emotiva xpr-2 amp(omg!!) Now this is getting serious, I LOVE MY POLKS!!!

    Awesome Speakers!!!!!!!!!!!!!!!!!

    Written By Paul, Woodbridge, Va. on Sunday, November 24, 2013

    Crutchfield Customer Review (What's this?)

    I couldn't be happier with the purchase of these RTi A9's! I am hearing music in a brand new way. I can't believe the sound that comes out of these speakers! I'm hearing nuances in music I've been listening to for years out of an older pair of Bose 301's that I never knew were there thanks to these new RTi's! I love Pink Floyd, but OMG! it's like listening for the first time! I was a little nervous about spending that kind of money on 2 speakers, but I'm so glad I did it.

    Pros: Bi-ampable, fidelity is incredible, beautiful black finish, tall and relatively thin so they fit easier in tight areas, MADE IN USA!

    Cons: At 80lbs. each, you will need help to unbox and position them. This isn't really a "con" because I believe you would have the same trouble with any speaker in this category.....

    Fantastic

    Written By Anonymous, minneapolis, Mn on Friday, November 15, 2013

    Crutchfield Customer Review (What's this?)

    Love these towers. Deep rich bass ans tighr crystal clear mids and highs. And nice appearance. Highly recomend

    Pros: Tons

    Cons: Not free. All I can come up with!

    Love Polk

    Written By EddieLee24, Cary, NC on Monday, August 19, 2013

    Crutchfield Customer Review (What's this?)

    I replaced my 15 year old Polk RTi1000s with the RTiA9s. The performance of previous Polks made with stick with them so I went for a higher line for the house we're building. Love the quality, the look, and the sound.

    Pros: Beautiful, great sound

    Cons: Depth

    Polk Rocks

    Written By Rob C, Chicago ridge ill on Tuesday, July 30, 2013

    I have had these for about 2 years now. They are powerd by an Emotiva Xpa-5. I plan to purchase the xpr2 600 watts/ch. I have heard many systems and this one for the price equals them. The speakers absolutely kick a££ I do have a 1000 watt sub to add to the excitement. But really for the price of these speakers you can't go wrong.

    Pros: Price looks build quality sound crutchfield carries them

    Cons: None other then they are hard to move, but I think that's a small price to pay for such an awesome speaker

    Polk Audio RTi-A9

    Written By Music Lover, Ijamsville, MD on Friday, March 22, 2013

    Crutchfield Customer Review (What's this?)

    I got these speakers two weeks ago and still breaking them in. They are heavy build and beautiful wood finish look like fine pieces of furniture. Sound was excellent but seem to be under power even though my receiver is a Yamaha RX-A2020 delivers 140 watt per channel and I have them bi-amp connection. I listen to them in low volume level in early morning or late at nigh and they sounds clear and warm, I though the bass was week but since I only use them to listen to music I am not in a hurry for a subwoofer. I read other people threats saying these speaker needs more power to sound at their best so I am in the process of looking for appropriate speaker preamp. I probably keep these speakers for a very long time.

    Pros: Sounds Great ! solid build look beautiful

    Cons: Need a lot of power

    excellent speakers

    Written By Ernie, New York city on Tuesday, March 05, 2013

    Crutchfield Customer Review (What's this?)

    I bought two of these speakers about a year ago. Buy them. They have taken all I've given them....beautifully. I also bought a subwoofer, which I have found to be necessary with these speakers. The sound quality and power handling are more than adequate for any house. I moved my A9s to my weekend home, and recently purchased the A7s for my apartment.....more than adequate.....dont forget: get a subwoofer!

    Polk RTi A9 (black)

    Written By Chris B, Burbank, CA on Tuesday, January 15, 2013

    Crutchfield Customer Review (What's this?)

    These are my first home theater speakers, and they are very nice sounding. First thing I said when I opened the box was "wow" due to their size. I've heard complaints about them being to "bright" for music, although I don't have anything to compare them to they sound fine to me. I'm driving them with a Yamaha RX-A3020, once I get the surrounds installed, I will probably be upgrading to an external amp for these beasts.

    RTi A9

    Written By Adam, Randallstown, MD on Monday, January 14, 2013

    Crutchfield Customer Review (What's this?)

    Awsome

    Pros: Sounds great

    Cons: None

    Polk Audio RTi A9

    Written By Anonymous, South Carolina on Sunday, August 05, 2012

    Crutchfield Customer Review (What's this?)

    Spectacular speakers. I bought these scratch and dent from Crutchfield and the damage was cosmetic and minimal. Definitely worth the savings. Sound is excellent. Nice balance from deep lows to high highs, as well as at a range of volumes. The more I listen, the more I like them. I'm using the small powered Polk sub with them, since it was free from Crutchfield, but it's really not necessary. My 110 watt receiver seems to be fine with them, but I'd be curious to try something bigger since many reviewers seem to recommend more power. However, I've never heard them distort all the way up to uncomfortable volumes. Enjoying them for both music in stereo and 5.1 movies with other Polk speakers. Very happy with this purchase, especially having never heard them before buying.

    Polk RTi 9

    Written By MWG, Texarkana, Tx. on Wednesday, June 20, 2012

    Crutchfield Customer Review (What's this?)

    Over all, a very good speaker, however, with 3 woofers, I find that it is weak in the bass area. I would recommend them however.

    A beautiful speaker (cherry) and sound great too.

    Written By blkyankee, Sabetha, Ks. on Thursday, May 24, 2012

    Crutchfield Customer Review (What's this?)

    I have had these speakers almost a month now and all I can say is wow!!! I was in the middle of finishing my HT when I traded horses mid-stream. I had and still do have, klipsch rf-82's when I decided to go with the Rti a9. They both are great speakers, but, I looked at the surrounds and wanted to go in the direction of the polks over klipsch. The polks sound is alot warmer to me, and they blow away the klipschs in the looks department. Very happy with my Rti a9's. Crutchfield was very easy and nice to order from. Great service.

    Pros: A great big beautiful looking and sounding speaker.

    Cons: None.

    Great Speakers

    Written By Netman8762, Hollidaysburg, Pa on Friday, May 04, 2012

    Crutchfield Customer Review (What's this?)

    Great speakers! Very firm and true sounding. You do need to have some power to get the most out of them I am running an Onkyo TX-NR1009 with an M-282, the Receiver does the Low end and the 282 does the highs. It sound very nice but I still feel that it could stand more power. The range on these is really nice, I have spent some time listening to vinyl and am very pleased with the results. I should also note that these speakers are BIG! You need to have some room to move these around.. Very pleased and will keep for a while..

    Pros: Great sound, true feeling. Look impressive, great sound. Great lows and strong mids. The highs seem very natural to me

    Cons: Huge, heavy and hard to move around..

    Stop wasting your time and buy these...

    Written By Travis, Houston, TX on Sunday, July 24, 2011

    A very musical speaker; could possibly be the last tower speakers you'll ever buy. The sound is very neutral and consistent from top to bottom. The bass is accurate and natural, but has the ability to take charge for more demanding audio tracks, and can go down to 20 hz quite comfortably. The Cherry Finish is beautiful and will blend well with other shades of wood. For the quality of product, the price is very reasonable. Also, they will sound very bright if under-powered. Moving them around can be awkward because of the shape and size of the cabinets, so save yourself the trouble and get someone to help you move them...use gloves. The RTi A9's are very capable speakers; however you should give just as much consideration to your other equipment. NO commercially-available receiver will do these towers justice because they have so many drivers. I originally bi-amped them with a TX-NR906 (~290 watts/channel.one of the most powerful ones out there), and while the sound was decent, it was obvious that my receiver could not fully control the entire range of the speaker in addition to the demands of the other speakers in my HT system. I highly recommend that you use quality amplifiers (such as XPA-1's) if you desire to use the RTi A9's as they were meant to be used.

    Clear and Even Sound but Bass Needs Help

    Written By Dono from Ohio, West Chester, OH on Friday, June 17, 2011

    Crutchfield Customer Review (What's this?)

    These are really well made and high-quality speakers, and I like them. They seem to require significant power to maximize the bass and probably should be bi-amped. Their forte is mid-range and smooth high-end but not bass. I will have to connect my powered sub to augment the deficiency. This is pretty much par for the course for Polk. Recommended, but get a sub to be completely happy.

    Jawdropping !

    Written By Gene F, Binghamton, NY on Friday, May 20, 2011

    Crutchfield Customer Review (What's this?)

    I got these bad boys because I like to play my music LOUD and let me tell you. My whole music collection sounds new again. I cranked up Joe Bonamassa when I hooked these up and my dear Lord !! I replaced 4 McIntosh ML-1C speakers I had since the 80's and was sad to see them go, but my expectations were more than met. They just come alive when you put the power to them. I have 2 NAD amps bridged to put out two mono sources of 300 watts and man alive, my friends sat there in utter disbelief. You aren't going to get the potential out of these if you have some wussy little receiver driving these. The crispness and spacial sound stage these things produce are stunning. If you got the space and the place, buy them now. You won't be sorry. Thanks Crutchfield, for a very pleasant experience.

    POLKS ROCK!!!

    Written By Gary, Ohio on Saturday, March 26, 2011

    Crutchfield Customer Review (What's this?)

    Absolutely amazing!!! Cherry finish is spectacular. Speakers are huge and very impressive even without any sound coming from them. Crutchfield delivered on time and without any issues. I had these for a week now and am still breaking them in. I purchased these exclusively for 2 channel stereo, but since I have a polk surround system, I am breaking them in on that and they blend seamlessly. I couldn't resist putting a few cd's in my bluray palyer to hear some 2 channel stereo and I am absolutely blown away with the range of sound, I hear so much more off familiar cd's than I have ever before. I turned the tv on a jazz listening station (im a rock guy) an oh my goodness, they are awesome. the highs are there, the lows are there, and everything in between is there. I have been using these in surround mode with my sub turned off, so I can check the bass on these babies and its definately there, of course for movies you need a sub, but for music, I dont think I will. I haven't cranked these puppies up yet to some heavy Metallica yet, at least not loud, but I can already tell they have what it takes. Im so glad I went with Polks flagship model. Thank you Crutchfield, and thank all of you who post reviews to make this purchase much easier. I love my Polks.

    RTi A9s Rock House!

    Written By Tom K., Mission Viejo, CA on Sunday, March 20, 2011

    Crutchfield Customer Review (What's this?)

    I never liked watching BR movies on my Sony LCD with the dinky sound. Some great floor standing speakers were in order. After a lot of research, I decided to take the plunge on a pair of speakers that would do justice to the home theater setup. The RTi A9's do the job extremely well and the double set of wire ports in the back tells you these were built for bi-amping (http://community.crutchfield.com/blogs/av_tips/archive/2008/04/23/are-you-sitting-on-a-wealth-of-untapped-power.aspx). It's something you should take full advantage of along with a good receiver to handle all that power.

    All you have to do now is put in "Apocalypse Now" on BR, cue up to the "Ride of the Valkyries" helicopter scene and experience nirvana. :)

    YEH BABY!

    Written By DAN.T, CHANNAHON IL on Sunday, March 13, 2011

    Crutchfield Customer Review (What's this?)

    GREAT SPEAKERS, BUT MUST HAVE A POWERFUL AMP ,PRE AMP TO REALLY APPRECATE, I KNOW I HAVE A DENON 2311 REC., THAT I AM HAPPY WITH, FOR HOME THEATER,BUT NOT FOR THESE BABY'S. I BOUGHT A EMOTIVA XPA-2 AMP AND EMOTIVA UPA-1 PRE AMP PUSHING OUT 300W PER CH,AND WHAT A DIFFERENCE A LITTLE POWER MAKES,ADD A 660 POLK SUB AND YOU WILL BE THUNDER STRUCK! , BUT BE CAREFULL BECAUSE YOU CAN AND WILL BLOW THESE SPEAKERS WITH THAT AMP ,I DID AND CRUTCHFIELD REPLACED THEM , YOU CAN'T BEAT CRUTCHFIELD CUST. SERVICE. PLEASE DON'T MISUNDERSTAND ME THE POLKS AND EMOTIVA ARE GREAT PRODUCTS ,I JUST GOT CARRY AWAY AND PLAY THEM AT 3/4 VOL FOR TO LONG, WHICH I KNOW NOW YOU CAN'T DO, 1/2 IS PLENTY LOUD. YEH BABY

    Do you want to bring more life into your music?

    Written By MarkF, Crossville, TN on Wednesday, January 19, 2011

    I've recently bought the Marantz SR7005 receiver to push these. I've bi-amped 125 Watts into these speakers, running a total of 500 watts. I've gotta tell you, words cannot describe the sound quality that is produced. I'm hearing stuff that I've never heard in my music. They are built very solid and aesthetically gorgeous. There is now way you can get this quality of sound out of compact speakers. These might seem pricey, but like most everything in life, you get what you pay for. Be sure to at least push these with some power. Highly Recommended.

    Big Speakers Rock!

    Written By Bob, Montgomery, Al on Monday, December 20, 2010

    Crutchfield Customer Review (What's this?)

    I did a lot of web research on these speakers due to the price. Almost all reviews were excellent. After having mine for several weeks I totally agree. I upgraded from my Def Tech's BP-8's. The A9's are awesome speakers and fill the room with music. What I like most about these is how good they sound at low volume. I'm mostly a two channel music guy and my cd and lp collection has never sounded better. I also got a sub but these have plenty of bass. I'm using a Yamaha RS-700 100 watt receiver and the pairing is great. They are big 70lbs each and require special shipping but Crutchfield called me within 2 minutes to fill me in on details. Great service and great speakers. Sound great with rock, jazz. blues.

    Great Speakers! Excellent Service!

    Written By Mike, West TN. on Wednesday, August 05, 2009

    Crutchfield Customer Review (What's this?)

    Ordered 2 of these from the scratch and dent outlet. One was near perfect and the other was damaged in shipping. One call and the damaged speaker was picked up and the replacement exceeded my expectations. If you look up customer service in the dictionary, the definition should read CRUTCHFIELD! Oh yeah, these polks rock, excellent bass, detailed midrange, and clear smooth highs. Could not be more pleased with my purchase.

    Polk RTi A9

    Written By Christopher, Chicagoland, Il on Tuesday, May 12, 2009

    I replaced an older Bose system with the A9's.

    I took Crutchfields recommendation on these speakers, while the price was a bit daunting I really wanted better sound out of music and movies. I REALLY got it!

    My receiver is the Denon AVR-3808CI.

    Movies and especially music have really come to life out of these speakers. My cd collection has never had the workout it is getting since I installed the A9's. There is an extra dimension to everything that comes out of the speakers that was NOT there before. All of the sound is clear and crisp. Highs are high but not ice pick high. Mid's are.......beautiful and the lows are bassy but not muddy.

    The cabinets are a thing of beauty. They certainly added to the decor of my family room.

    They are pricey but worth it in my opinion. If you are in the market for a set of forever speakers and have the extra $, these may just be the ones for you. They certainly are for me.

    Polk Rti9

    Written By Noel, Matthews. NC on Saturday, November 15, 2008

    Crutchfield Customer Review (What's this?)

    Loved these speakers. I bought two scratch and dent and they are perfect.

    My amp pushes out 300w so these are perfect as front speakers. By far the best looking without the front grill and the sound is near perfect.

    Delivery and Cruthfield were great. I even bought another for a back speaker and am saving for another. Thanks

    Polk Audio RTi A9

    Written By Sherrill, San Marcos, Texas on Thursday, October 23, 2008

    Crutchfield Customer Review (What's this?)

    I have had these speakers for about 2 months now and I am very pleased. Mids and highs are crystal clear even at extreme volume levels. Bass response is great at all but the highest of volume levels. I have'em Bi-amped with an Onkyo 805 which puts out 260 watts to each speaker. They truely a joy to listen to and I have to fight to keep from cranking the volume up constantly....even at 5 in the morining...with housemates. Money well spent.

    Outstanding!

    Written By m58villa, Tinley Park, IL on Sunday, October 05, 2008

    I couldn't be more happy with my purchase. I have these speakers connected to my aged, but ever powerful, 500 watt power amp along with a matching tuner and pre-amp. These speakers are well balanced, warm and the cabinet is something out of Fine Woodworking. Imaging couldn't be more distinct and let me tell you, they will take all that my amp can deliver without a speck of distortion. You will love these speakers as I do! Thank you Polk!

    speaker madness

    Written By bruce, sandusky ohio on Tuesday, September 02, 2008

    Crutchfield Customer Review (What's this?)

    well looking for speakers is a hard thing to do ,without especially listening to them, so after a long and thorough search, i deciced on the rtia9 in cherry finish. and it was an excellent choice, they should be treated as furniture because they are beautiful, and the sound is very supreme, hooked up through an onkyo amp,they just blow away my old infinity speakers, now my neighbors really adore me!!!!!

    Excellent!!!

    Written By RAYHAN, New York on Thursday, July 31, 2008

    Crutchfield Customer Review (What's this?)

    This is a excellent Speakers,much much better than its predecessor RTI12 along with others non Polk branded Speakers with much higher price range ,Bass is very tight and hit realy low,u can actually feel the punch even in very low volume. Vol. is set to -50....it sounded great....Its high,Mid and low all sounded with great details and imaging..............................
    Also Speakers by himself looks beautifull and it realy worth the money I paid for.

    Prime Time Towers

    Written By jmarch, Chattanooga, TN on Sunday, February 10, 2008

    This will be the first review of these beauties, Polks web site has 3 reviews otherwise this is it, I googled everywhere couldn't find anyone with a review.



    Anyway...I bought these by the picture and info here never heard them before, but I had a good idea this was a good choice, I have Polk momo car speakers in ALL 4 of my cars and bang for the buck NOTHING matches the preformance of Polk.



    These monsters are heavy and extremely well built, 4 feet tall, the cabinets taper slightly, towards the back. I almost needed a dolly to move these around, I couldn't get my arms around them, unbelievable mass and build quality.



    Stunning to look at, hard to take my eyes off of them, I have yet to put the grills on (doubt I ever will) they are beauiful and tastefully crafted and would blend into any upscale home decore they just scream power and preformance. I have the black / silver accent model.



    Onkyo TX-SR875 140 Watts a channel is driving these babies every octive, highs,mids,bass preforms flawlessly. Understand speakers of this caliber take a few weeks to break in same as Polks car speakers. Other than the Odessay calibration of the Onkyo I have added 2db to the base for tweaking the lows the tweaters are very brilliant and clean no adjustment needed overall performance is stunning. Your home or ears cannot handle the top end sound and power these speakers can produce. At lower volumes they still sound full, deep, brilliant and powerful.



    You will be hard pressed to find any speaker at this price range and build quality that comes close to these amazing speakers.



    These are a bargain at 749.00 ea that preform at the 2-4K price range. Don't skimp on a receiver a 1,500 set of speakers needs a 1,500 receiver These need good clean power. Would you put cheap tires on a new Corvette?



    The public and magazine critics have yet to catch on to these masterpieces they are so new and undiscovered. I'm loving these speakers, by far the BEST value Crutchfield has in tower speakers. Anyone who chooses these...YOU WILL NOT BE DISAPPOINTED!

    Product reviews from the Crutchfield Labs

    Almost Perfect

    Written by James, IT Programmer/Analyst 2, on 6/26/2012 10:18:00 AM

    Let me start by saying I love these loudspeakers, they sound GREAT! I've used the Polk RTi A9's as my main left and right for about a year, and after a short break-in period they really came out. Music sounds fantastic. The sound stage sets the musicians realistically. They're very clear and concise, I've heard more detail from my CDs than ever before.

    I use my A9's mostly for home theater and they shine with matched speakers. Mine are set up with the voice-matched CSI A6 center and FXI A6 surrounds. The effects seamlessly envelope me. I like my movie sound loud and detailed, so I'm in it. These do that job superbly. Did I say I loved these speakers yet?

    As many customer reviews have also stated, the A9's need power. A lot of power. They still sounded good when I drove them off of a 7.1 Onkyo receiver at 110 watts, but the lows suffered some. When I bi-amped them the lows came out and really started to hit. I think these speakers would gain even more from more power and a separate powerful amp (they can take 500 watts!).

    The cabinets are very nice and the cherry color blends in well in my living room. These speakers are big, they do have a dominating presence which I love but, unfortunately, my wife doesn't. They are also very heavy, so moving them around is kind of a pain, but it's a good sign of the quality of their build.

    Positives: Clear, detailed, loud.

    Not So Positives: Wife appreciation factor, need a whole lot of power to make them really shine.

    What are the Labs?

    Get everything you’ll need to enjoy your new Polk Audio RTi A9

    You'll need speaker wire to connect your speakers to your amp or receiver. No wire is included with this speaker.
    Add connectors to your bulk speaker wire for a neater, easier, and more reliable installation.
    Cut your speaker wire to the exact length you need.
    Original Monster Cable

    Original Monster Cable

    With gold pin connectors (15-foot pair)

    Item #: 119OMC1515

    (41)

    $39.99
    Add to Cart
    AudioQuest Type 4

    AudioQuest Type 4

    Speaker cables with pre-attached banana connectors (10-foot pair)

    Item #: 703T410BFS

    (22)

    $248.99
    Add to Cart
    AudioQuest Rocket 33

    AudioQuest Rocket 33

    Bi-wire speaker cables with pre-attached banana plugs (10-foot pair)

    Item #: 703R33BW10

    (12)

    $328.99
    Add to Cart
    Monster Twist-on Mini Banana Connectors

    Monster Twist-on Mini Banana Connectors

    2 pair, 16-gauge

    Item #: 119MTTMH2

    (12)

    $11.95
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    Monster Twist-on Banana Connectors

    Monster Twist-on Banana Connectors

    2 pair, 12-gauge

    Item #: 119MTTRH2

    (4)

    $15.95
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    Monster Cable Twist-on Angled Gold Pins

    Monster Cable Twist-on Angled Gold Pins

    4 pair, 12-gauge

    Item #: 119AGPTRH2

    (9)

    $13.95
    Add to Cart
    AudioQuest X2 Speaker Cable

    AudioQuest X2 Speaker Cable

    14-gauge cable, connectors optional (30 feet, Gray)

    Item #: 703X230G

    (27)

    $58.99
    Add to Cart
    AudioQuest G2 Speaker Cable

    AudioQuest G2 Speaker Cable

    16-gauge cable, connectors optional (30 feet, Gray)

    Item #: 703G230G

    (20)

    $38.99
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    Monster XPHP™ MKII

    Monster XPHP™ MKII

    Speaker cable with clear jacket (100 feet)

    Item #: 119XPHP100

    (10)

    $99.95
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    Monster XP®

    Monster XP®

    Speaker cable with clear jacket, connectors optional (100 feet)

    Item #: 119XPMS1H

    (52)

    $64.95
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    Monster XP® Navajo White MkII

    Monster XP® Navajo White MkII

    Speaker cable (50 feet)

    Item #: 119XPNWS50

    (2)

    $39.95
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    Arista 16-Gauge Speaker Wire

    Arista 16-Gauge Speaker Wire

    50 feet

    Item #: 043185882

    (1)

    $14.99
    Add to Cart
    IsoAcoustics ISO-L8R200Sub Monitor Stand

    IsoAcoustics ISO-L8R200Sub Monitor Stand

    Supports subwoofer or large single monitor

    Item #: 892L8R200S

    $49.99
    Add to Cart

    Questions & Answers Ask the community. Share your knowledge.

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    The Polk Audio LSi M 705 offers these features:

    features a 4-way design including a 1" ring radiator tweeter, a 3-1/4" midrange, a 5-1/4" midbass, and dual 5" x 7" woofers

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    handles up to 250 watts

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