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Polk Audio Tower Speaker (RTIA9) - Black - Single

  • Model Number: RTIA9
  • WebID: 10090953
(102 ratings)


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The RTiA9 features Dynamic Balance polymer composite drivers for smooth wide range response with low distortion. Power Port Plus bass venting technology offers superior bass that you can really feel.

More Information

Please Note: This product is sold as a single unit. If you wish to purchase a pair, add 2 units to your cart.FEATURES:
  • Acoustic Resonance Control Technology results in more natural midrange reproduction.
  • Each speaker contains a 1" silk soft dome tweeter, 2 x 5.25" mid-bass drivers and 3 x 7" woofers.
  • An anti-diffraction grille minimizes diffraction for spacious 3 dimensional imaging.
  • The RTiA9 is magnetically shielded and comes with dual bi-ampable gold plated 5 way binding posts.

What's in the Box

  • Owner's Manual
  • Owner's Manual

Manufacturer's Warranty

  • Parts - 5 Year(s)
  • Labour - 5 Year(s)

For more information about the Manufacturer’s Warranty, please contact the manufacturer or visit their website.

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Wallmounts Included No
Colour Black
Frequency Response 18 Hz - 27 kHz
Magnetically Shielded Yes
Power Capability 500 W
Sensitivity 90 dB
Mid Range Speaker Size 5.3 in
Tweeter Size 1 in
Width 19.7 cm
Height 127.3 cm
Depth 53.3 cm
Width (Inches) 8.875 in
Height (Inches) 48.625 in
Depth (Inches) 21.375 in
Weight 36.4 kg
Warranty Labour 5 Year(s)
Warranty Parts 5 Year(s)



Customer Reviews

4.6 / 5
Based on 102 ratings,46 Reviews
Ratings & Reviews
  • 5
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Positive vs. Critical Reviews

Positive 96%

46 Reviews

Critical 3%

0 Reviews

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  • from Calgary, AB
  • Feb 14, 2015


I bought a pair a week ago! the sound quality is amazing, from Low freq to high, i even don't need a subwoofer, it performs perfect! highly recommend!

  • from Ajax, ON
  • Feb 09, 2015


My Martin Roland amp power them up , giving me what I want to hear from my music . I recommend to all my friends about this monster pair .

  • from Fort Fraser, BC
  • Jan 16, 2015

very good

As with any speaker, one does not "fit all". Over a length of time, I looked and listned to many different brands of speakers, focusing on the higher end of their product. When I listened to thePolk RTi A9's, I was very impressed. Clean highs, clean clear mids and great low bass. Having good clean power and bi-amping these will extract their true potential.

  • from Victoria, BC
  • Jan 07, 2015


I picked these up on Boxing day thinking that at that price, the sound couldn't be that bad. Well, it wasn't horrible. I hooked it up to a pair of Bryston 7B's after reading everything here. I had easy 500WPC going to them, so that wasn't going to hold them back. The woofers were easily swayed - perhaps a bit too much. They had punch, but no accuracy. The low end was not as clear as I was hoping it would be, despite the depth. The midrange was just not very emphatic. I describe it as recessed. I found vocals took a back seat to strings and drums, for instance. Compared to the bass and treble (up next), it was not balanced. As others have said, these tweeters are bright. I found it harsh. That alone was going to not work for me. cymbals and guitars just lit that thing up. Having said that, the speaker handled power very well and I think for home theatre or certain types of music, it may be fine. It just didn't work for me, so I returned them. Having said that, FS was very good about taking it back.

  • from Toronto (Weston Village), ON
  • Jan 05, 2015

A Lot Of Speaker For The Money...

These things do take some power to drive the 3 woofers but I still find they sound great even at low volumes; you just don't get to feel their real potential. Unlike most here I am actually using them just for stereo music (through 2 old NAD 2200 amplifiers) and not for TV/surround sound. They replaced some pretty good 35 year old speakers and truly put them to shame. These have a great combination of clarity and detail with relatively deep bass that won't disappoint. When they are on sale I don't think you will ever find a better deal on some pretty high end sounding speakers. I knew they were 75lbs each but was still a little surprised at how tall and deep they are, they do take up a little space. I don't know why Future Shop doesn't have these on demo at their stores, they would sell a lot more once people hear them and see their design/build quality.

  • from Barrie, ON
  • Jan 03, 2015

RTiA9 -- simply stunning

Bought two RTiA9 speakers on Christmas sale from Future Shop as an upgrade from RTiA5 I had for many years. I was really impressed with the difference in sound quality. Powered by Yamaha RX-V1077, they produce absolutely stunning clarity !!! Very Impressive low and mid range. Great speakers. Highest quality body work. For many years, Polk continues to impress me with their quality. Highly recommend to anyone who wants to get astonishing sound quality and the highest value for their money at the same time.

  • from Toronto, ON
  • Jan 01, 2015

Polk Rti-A9

Got a set of these during the boxing week sale. I originally purchased the Polk Rti-A5 towers. Which sounded great but I wanted a fuller sound (more Bass). I have a powered sub, but wanted more from the speakers... I ordered the RTI-A9's online. Quick and Easy. Purolator delivered the speakers. The boxes were really beat up. One had a 1' x 1' hole in the box. I checked the speakers and they were not damaged. The speakers look great. Nice build quality. Real wood veneer. I looked at the Klipsch reference towers but found the build quality lacking. The vinyl wraps on RF display models were peeling... Power wise, they need power like other reviewers have said. I am purchasing an amplifier to power the woofers. I have them currently passive bi-amped from my receiver. The mids-tweeters have enough power and sound great, but the woofers are bairly audible. So keep that in mind.

  • from Hamilton,ON
  • Dec 27, 2014

good speakers

good speakers but power hungry. need to be biamped and volume have to be over 60db

  • from Calgary,AB
  • Dec 27, 2014

Amazing Speakers

Now, I have four of them my home theater is complete.

  • from Airdrie, AB
  • Dec 23, 2014


Excellent speakers!!! VERY HAPPY

  • from Montreal, QC
  • Oct 27, 2014

The best speaker in its class

I just bought these to replace my Polk RTi12's which are basically the same speakers. The reason I upgraded to the newer model is that I was able to get them for an amazing price, they look more classy and they sound slightly different in a good way. The overall height is a bit shorter, the cabinet is curved (DAHLI) it adds a sleek design, the front is timber matched to the rest of the cabinet, grills are easier to take on and off and the mid-range and low end have more depth and open soundstage. Both the RTi12's and RTiA9's are very detailed with crisp highs. I've seen and heard alot of other speakers in this price range and to me this is the best bang for the buck due to the fact that you get alot of speaker, they look beautiful shape, design, wood veneer finish and sound amazing all around. I am currently running them on an Anthem MRX-500 receiver and the match is perfect, the sound is outstanding. If you can get your hands on either model then go for it, you should not be dissappointed. If you are contemplating between the Polks and the Klipsch RF-82 the Polks are a better speaker overall, don't be fooled by the Klipsch playing louder cause of their higher sensitivity.

  • from Calgary, AB
  • Aug 16, 2014

RTi A9- Great sounding speakers.

I have 2 pairs of these beauties,I`m running these with 2 2chnl amps.I have ea. pair hooked to my Perreaux amp 350 watts per chnl ea amp.With the 4 playing in my 280 sq.ft. living rm. you would think your actually at a live concert. I have 2 12" 500 wt rms subs hooked to my system,Wow do my windows shake,between the 4 A9s & the 2 subs which I really don`t need ,these 4 polks put out enough bass to annoy my neighbors on either side of me.Over all great speakers,I don`t understand why the newer A9s cost almost half the price of the older model the RTi12s. I had a pair & I think the A9s are nicer. My vote B+ Thanks Pete

  • from Ancaster, ON
  • Jul 27, 2014


Sound is crisp and clear. Just make sure you have a good amp to make this babies perform. This is a 500 watts speakers and require substantial power amp.

  • from Vancouver, BC
  • May 31, 2014

Love THEM! my second pair of my 2nd system!

Yes , my second pair of these, love them, first pair for my 7.4 Onkyo txnr-828 receiver, I also use mission 33i,34's, and 4 subs, 3 bic 475watt ones and polk 440, with klisph bi-polar back surrounds/Energy Veratas centre Panisonic zr 65'' reference plasma,yes this system rocks! great for movies, remastered cd's, hd dvd's , music hall player-l-bums. Second system upstairs, 7.2 system with 7 channel speaker box, full surround! lol The music sounds like a concert with my Polks a9's Boston more than a feeling rocked my large living room, gee felt like I was back in high school!, Buy these you need a good receiver that puts out, if you don't bi-amp them , other wise they are great! Good looks and very modern, first pair , I just read reports, then bought them on sale on Boxing day, second pair got them on sale again just recently when I saw them on line, best speaker if you want nice mids and great sound, you can mix them with other speakers too, like I did with Missions and Paradigms, and klisph horns, try them out with the Xmen movies or Iron man, you will love them, they will rock your rooms! Have fun,,,,,,the mystro!

  • from Brossard, QC
  • Mar 23, 2014


Those speakers are simply amazing. I bought them during the boxing day period with less than half of the regular price. Worth every penny. I must say, those speaker are very heavy. I use them with a marantz. I must tell you guys, you haven't heard anything until you plugged them with the BI-AMP configuration. The improvement is astonishing.

  • from Arnprior ont
  • Feb 15, 2014

Great speaker

I use these for my front speakers powered by a pioneer vsx 1125 . Very good clean sound and able to listen at high volume without distortion . I havent hooked up my subwoofer and am thinking i dont need too.

  • from Vancouver, BC
  • Feb 03, 2014

What can I say!

Man this is amazing when I joined these speakers into my 7.1 AV system. They add a lot more details on mid range and crisp on high. When I listen to music I only use this pair as stereo, again they sound great. However, you do need a better amp to power they. I added a power amp and bi-amp to config the crossover and the low is punchy, no additional sub need.

  • from Ottawa, ON
  • Feb 01, 2014

Good stuff

Now I ain't no audiophile, but these things crank out the bass and seem to annoy the neighbours, and that's good enough for me. These are large, heavy speakers. They are very deep but pretty narrow, so I was able to fit them next to the tv in my small living room. If you've got a bigger room, so much the better. Side note, one of the speakers had some cosmetic damage to the front corner where the veneer was slightly crushed, probably from shipping. I wasn't about to go through the trouble of a claim with the shipping company, so I touched it up with a little glossy black hobby paint. Now the spot is very hard to detect unless you examine closely.

  • from Manitoba
  • Jan 28, 2014


These speakers are amazing! [price] for the pair was an amazing price.They need to be bi-amped for sure to get the best sound. I have one sub, and these speakers produce more bass. I will be buying the CSiA6 soon to get to 5.1. Future plans are to buy an amplifier and adding another 2 speakers to get to 7.1

  • from Niagara Falls, ON
  • Jan 28, 2014

Great Speakers - Great Price!

I ordered these on January 2nd. and they arrived January 3rd. in the morning, not even 24 hours later! I must mention that Purolator really did a number on them, but due to the great packaging by Polk, there was not a hint of damage. These speakers easily meet my expectations, but really, they exceed it. Perhaps that is due to the fact that I didn't know what I was missing. Now when we watch movies or T.V. shows, there is no missing the spoken word anymore. I have them bi-wired at the moment, and may experiment with bi-amping in the future as I am sure the performance will increase substantially. However, as they are and with minimal augmentation from my relatively low powered 10" subwoofer, I have everything I need. The bass notes are very tight compared to my old speakers, so there is no mushy, booming sound - just clean, tight bass where there should be. At the price and for such high build quality, well-engineered speakers, I don't know how anyone could not be perfectly pleased with these speakers. I highly recommend them.

  • from Kamloops
  • Jan 24, 2014


I have these speakers bi-amped and they are powered by a Pioneer sc-1328. I am very impressed with these speakers. I did some research on bi-amping and there mixed reviews out there so what I did was I bi-amped one speaker and not the other and there was a difference for sure! If you do bi amp make sure to remove the plate that connects the two terminals on the back of the speaker otherwise you may fry the receiver. I also bought the polk CSi A6 center speaker to complete the front. Watching blu ray movies is awesome! Better than the theater. I would not hesitate to recommend these speakers.

  • from Weyburn, SK
  • Jan 20, 2014

Good Value and good sound

I purchased these speakers during the FS boxing day sale. At $800 for the pair, they are an amazing deal. I have a Rotel 200W x 2 amplifier that I use to drive them and they sound very good. I plan to use them for my L/R speakers in my home theater, and I was looking for strong mids with good chest thumping punch (mid-bass). They deliver with a very strong sound and good dynamics. Paired with a subwoofer, they produce a very pleasing sound across all frequencies. They have made me a believe in Polk and I plan to buy more in the future to fill out the rest of my system.

  • from Oshawa, ON
  • Jan 20, 2014


These speakers are perfect for my music. Loud and grungy rock. And the price was right at future shop xmas sale.

  • from Sudbury, ON
  • Jan 18, 2014

Polk Audio Tower Speaker (RTIA9) - Black

Top rated speakers, It added clear and sharp noticeable bass the moment they were hooked up and started to watch a Hockey game. Then when I tried music, wow, needed a little more volume but sounded deep, punchy and solidly clear, with confidence of more room to spare. And I haven't even tried a bi-amp hook-up yet! Yes!

  • from London, ON
  • Jan 17, 2014

A home theatre experience you do not want to miss!

I picked these up on Boxing Day. Based on this price, you simply cannot and will not, do better in a home theatre speaker. Period. There is a lot of engineering that went into these speakers and the build quality is high. Unfortunately the wife forced me to get black, as the cherry would have added a little more eye candy. I had the RTi A7's a short while ago in cherry and they looked fabulous. I have these paired with the CSi A6 and four RTi A3's in the back. The reality is that most quality rear and side speakers will do. I have proven this to myself many, many times. So the A3's may be a bit overkill. However, the center and front speakers are the work horses of the surround system. Cheap out in any of these three speakers and you will notice it right away. The Polk A9's and A6 do their job perfectly. Bass, midrange, and high's are handled nicely in surround movies and their soundtracks. The A9's (in movie surround use) do their job and everything you ask of them and they do it very well. Most floor standing speakers are not going to give you the gut wrenching bass that will rattle the pictures on the wall without the use of a sub woofer so you may still want to add one. However, the bass extension goes very deep on these speakers and you can still get a moving movie experience without one. It depends on what your expectations are. I have a quality sub woofer but the wife hates......something about making her heart skip beats (lol) so I can't use it. I was pleasantly surprised with the bass response using the A9's without a sub, so I am enjoying movies once again. Please note, these speakers are very high and deep. They are a statement piece that will smack you right in the face when you walk into the room. As for the "they need a lot of power" bit, most high end speakers will sound better with a powerful, quality amplifier, especially when listening to music. How much power is really enough? Do what I did. I purchased a Pioneer Elite SC-72 receiver. FutureShop had the same one basically, the SC-1328-K on sale on boxing day as well. This is a 130 watt RMS receiver which uses a digital Class D amplifier that produces the full 130 watts no matter how many speakers you add even down to 4 ohms. That's the trick, Class D for movies with the A9's and you will be very happy. Music listening only is a whole new ball game and the A9's should not be your first choice in this area, there are a lot better options out there if you are paying full price. But for [the price]............even with music listening you probably will not find a better performer for the money.

  • from Sydney, NS
  • Jan 17, 2014

Great Speaker

I agree with some other reviews that these do require a lot of power to get the full value of the speaker. I have them wired in a Bi-Amp situation and the sound is great so far. I only had them for a couple of weeks but I replaced a pair of Klipsch F-10 and these are light years ahead of those which they are suppose to be.

  • from London, ON
  • Jan 10, 2014

The RTI A9 will blow you away

You need another amp, the RTI A9 will blow you away, I have a Yamaha RX-Z11 11.2, 1180 watt amp running the top end of the RTI A9’s 140 x 2, Burr-Brown DACs, my center channel Klipsch RC-62 and my 2 rear surround speakers Vintage Infinity SM 80’s. A home theatre amp even bi amped will not give you enough power, I have added a Crown XLS-1500 DriveCore Series 600 watts into 8 Ohms for the bottom, with pro series wires running everywhere, you will not need any sub and you will not be able to listen to then even a half volume. The Bass from this RTI A9 will punch the bass port will blow your hair dry and the top end is a great mix, I can here every detail in them. I have 3 subs running 2 Velodyne Optimum 12 12’s rated at 1200 watts RMS and a Klipsch sub-12 300 watts continuous, but these are now overkill. After hours of use I can say these Polk Audio RTI A9 will rock your world but with one amp these are going to sound like glorified computer speakers. Be careful when selecting a Home Theatre amp as many of the new ones do not come with RCA pre outs so adding a second Amp is near impossible to do.

  • from Scarborough, ON
  • Jan 04, 2014

Lovin them so far

Had a set of 9s delivered yesterday(couldn't resist BDay sale price) Have them bi-amped with my Pioneer sc1328 & they have fairly decent sound(clean & tight). Good looking spkr with or without the covers on. They are well boxed which is a good thing seeing Purolator tried their best to destroy one of them when delivering.

  • from Edmonton
  • Jan 04, 2014

Home audio addict

We'll id like to start off with one word wow. These speakers are amazing. Unfortunately I am still waiting for one to get delivered but will be here in 3 days. So like any real man I had to hook up the one I got to my stereo. I've been a Polk fan for ten years now and they never let me down. I am replacing my fronts with these as the sound is awesome. People keep commenting on the power that is needed for these, and I'd say they are wrong. They do need to be bi wired for best sound. I have a marantz 5007 and it powers them really we'll. really happy with my purchase

  • from Scarborough, ON
  • Dec 30, 2013

Very Loud and Crisp

Very Loud and Crisp. Excellent deal.

  • from Hamilton, ON
  • Dec 26, 2013

Very good

I had these speakers for over 2 years. Bought 4 of these. I use THX rated Carver amps 200 wrms/ch to power these in bi-amp configuration. They will sound a bit "thin" if using just a receiver to power these, limiting their potential. Base is defined, but lucks deep thundering bass if reproducing movie explosions. Tweeters are have a clear definition but luck high luster highs. I would have chosen to use ribbon tweeters instead soft-dome in these speakers. Over-all, these speakers sound quite well, provided they see adequate wattage. Bass is not massive, but well defined. Tweeters are soft sounding and will not fatigue your ears. Great speakers for music ranging from classical thru jazz, pop and rock. Hip-hop and movie reproductions will require external subwoofer.

  • from Mount Pearl, NL
  • Oct 16, 2013

Amazing Speakers!

I bought these on sale [...]. Amazing price for even more amazing sound. You do need a high current amplifier or at least bi-amp them with two regular amps to get the most from these speakers. Been an audiophile for 20years and can't say enough good things about them. Oh and there heavy so have a friend on hand to help unbox and setup. :)

  • from Winnipeg, MB
  • Sep 26, 2013

These speakers need a dedicated amplifier

I think these are decent speakers for their build but one thing they do need is real power from a separate amplifier and not a wimpy receiver. I have the RTiA9's connected to a Emotiva XPA-2 amplifier and they sound much better with a real 80lb class A/B amp that puts out minimum 300 watts per channel at 8ohms.

  • from Toronto
  • Apr 02, 2012


I' ve had these for over a year. One thing that people keep commenting on about these speakers is that they need a lot of power. I think more accurately is that they are hard for most home theater receivers to drive. The solution is to Bi amp them. I think these speaker were designed with the end user hooking them up that way all along. Once I did that and most 7 channel home theater receivers will allow you to bi amp your main speakers. They sounded wonderful no complaints what so ever with the quality of the sound they produce. If you are not going to bi amp these then as everyone else before me has stated with out a really good quality amp driving them you will not be impressed. I have hooked them up to an onkyo 5008 and it was only after i used the bi amp feature for the mains that was I really sastified with what these speaker can produce. They are nice to look at with the grills on or off. Most people who listen to my hometheater set up are pretty impressed with the sound quality for music and movies. I am happy with these and find there is nothing lacking in the sound they produce and all of my music sounds great through them. I recommend them. I find this is the no compromises option for home theater speakers.

  • from Laval
  • Mar 08, 2012

Best in class

Hey, I have them now playing for 3 good months and i am really pleased with the performance. I am a sound fanatic and have played them with 3 different amps and find that for the price they are you can't get better. The tweeter are a little bright but you just turn them down a little with the EQ, mid range is verry clear and precise, the bass is nice and punchy and deep. Even at loud volumes they can handle it verry well and still keep the integrity, not intended for Disco but it can handle any house party or any movie like a pro. The Klipsh don't even come close to this ones.

  • from edmonton alberta
  • Jan 17, 2012

Amazing Quality Amazing Price

I have been reviewing and sound checking many different speakers specifically tower speakers over the past 3 years. I have come to two final choices in the tower speaker category for the midrange speakers bought out of a box store like futureshop. The Martain Logan ESL and these RTIA9. The Martain Logan have superior lows due to the electrostatic technology and produce decent highs but doesnt fulfill the entire range the human ear can hear with out the hellp of a subwoofer. We can hear from 40Hz to 40KHz. The RTIA9's have exceptionall bass response hitting very accurately and still being deep. The mid and low frequencies are very rich and life like as well. These speakers are a perfect addition to my 7.1 system which I use the Harmon Kardon AVR3650 to power them. The dual wiring feature of the speakers drastically improves the response of the speakers. Playing these in just stereo mode to music is exceptional. Perfectly calibrated and no distortion. I bought the pair on boxing day and am very very happy I did. I highly recommend these to any audiophile and I am one my self.

  • from St. John's
  • Jan 11, 2012

Well designed/built.

I had these on my wish list for a while and was finally able to get a pair. These are truly a sight to see up close plus they are big and heavy. Well designed and well built....real attention grabbers. The sound quality is very good out of the box but need a fair bit of break in time will definitely get much better as the hours rack up. Two cautions though. Firstly, you may think you have a high end amp now but chances are you do not have enough to drive these power hungry beasts to their potential. A "home theatre in a box" amp will not drive these. Don't be surprised that your current a/v amp isn't up to snuff. Secondly, once you get these don't be surprised to feel the need to upgrade your other old surround speakers as these will definitely bring out the hidden audiophile in you. Summary, these make a great center piece to any home theater or multi channel music environment. These Polk's plus a great center channel (recommend the Polk CSi6) and a great amp will be the strong backbone of an awesome home theater or music experience. Add the best rears and powered sub that you can afford and it will only get better.

  • from Toronto
  • Jan 05, 2012

RTI HT set-up primarily

Incredible sound from these two mains. They're in an all Polk audio home theatre set up (all within the RTI speaker line for perfect timbre match). Best quality you can get for the money. They are loud, never crackle, terrific mids highs and lows, endless power and they look great too. Bi-amp if your equipment will allow you to do so. Recommended for someone who wants to spend extra to get amazing results in both performance and aesthetics in their home... Your buddies will be impressed!

  • from Calgary
  • Jan 05, 2012

Blown Away

Bought these to upgrade from the A5s as I wasn't happy with the A5 lack of deep bass. I tried the A7s too but I found the midrange lacking slightly. I was happy enough then some demos of some A9s were available for sale at one of my local FS stores. Boy, I was blown away. Other than the size and weight of these being the only negative, I heard things in my music via iPod that I had not heard before. Don't use an underpowered receiver either. I use the high end Pioneer with 140 watts per channel. The depth of the sound is incredible, the midrange is focused and lifelike, and the bass is tight and not boomy. No sub required with these. I originally had PSB towers that were smaller, but one had a blown tweeter that could not be repaced and they were in need of retirement. I will keep these until I die.

  • from GTA
  • Dec 13, 2011

Amazing Speakers need Clean Power

These speakers are amazing..... Dont be fooled by running these off any wimpy HT receiver. I have these running from my Emotiva XPA-2 Amp (300wpc RMS) with a Pioneer Elite 7.1 Preamp....amazing for movies and HT... For music im running these off a vintage Sansui G7500 receiver.....crisp clear and warm sounding... If you get these speakers do yourself a favor and get some powerful CLEAN amplifiers!!

  • from Ottawa
  • Nov 24, 2011

Awesome Awesome Awesome

As a kid I would go through HIFI magazines hoping to one day own a pair of Polk Audio speakers. Well I own 3 pairs of them now. I'm happy with everything that I have purchased from the company (RTI150, RTIA7, RTIA9). At present I'm running the RTIA9s as my fronts and the RTIA7 as my rears, powered by an Onkyo amp. It doesn't matter what I throw at these speakers everything sounds great from 2 channel music recordings to multichannel movies. Do yourself a favor and take a listen. Yes they are expensive but do what I did and wait till boxing day. It seems our good friends at Futureshop must have a deal with Polk Audio, every year there speakers are on sale. The speakers are big and heavy, but are so beautifully made that they add class to any room. They are probably the best speakers Futureshop or Bestbuy sell and will compete with much more expensive speakers. If you don't believe me do a GOOGLE search and look at reviews. Well hope this helps make your decision easier.

  • from memramcook
  • Oct 02, 2011

rti a9's

these speakers are the clearest speakers i think i've ever heard, even the bass is somewhat impressive. For home theater use or listening to music the speakers will definately impress you. I'm running a yamaha amp that pushes 130 watts per channel, it drives the speakers very well, with the sub that i have it is a very good blend of sound. I'm running an energy 10.3s sub. Hands down with what i paid for them i'm very impressed and very satisfied.The design of the speakers as well is very elegant and add a nice touch to any room.Thanks polk audio, you've outdone yourself.

  • from quebec
  • Feb 14, 2011

excellent speakers.... but...

be careful not to fry the tweeters, as they are extremely sensitive. contacted polk to get new tweeters...... fried mine within a week.... need minimum 200wpc to play well

  • from TO
  • Feb 09, 2011

These bad boys thump

Purchased these monsters recently. Unbelievable sound reproduction in a big box loudspeaker. I am a very satisfied consumer of a top quality noise making device. Very clear at up to volume 11.

  • from Winnipeg
  • Jan 04, 2011


Bought these speakers online. Received them last week. I'm impressed. They sound amazing. I had no idea they were going to sound so good. I wasn't sure about the base... so before I got them, I bought a powered sub-woofer. Later after trying them out, I returned the sub-woofer.. no need to keep it... great base! Note.... they are tall and make sure you have room for them. Worth making space for them. Best speakers I have every owned so far!

  • from Hamilton
  • Dec 25, 2010

Very good

Excellent speakers. Last year I purchased RTIA7's for my rears, and I finally bought RTAI9's for fronts. As with any speakers, you have to break them in first, 100 hrs or so at low volumes. Also as with any speakers, you should have them equilized to get proper, true sound. I used good quality mic with spectrum analizing software 20-20KHz on my loptop. Highs are crysp but not to a point of fatigue, mids are clean and sound is warm from the woofers. If your ears are very accurate and sensitive, and if you have very accurate speakers to compare to, such as Martin Logans, you might notice very slight distortion on higher-end, but this is normal with any towers incorporating multi-drivers in a single enclosure. It's caused by induced current from linked drivers. Otherwise, you won't hear any imperfections. Good solid and interesting build with option to bi-amp. Like with any tower, you should use a good quality sub to fill the bottom-end of the sound spectrum. A good, clean, high current amp with at least 100 wpc rms is a must. Bi-amp these speakers to get true potential out of these bad boys and limit distortion. Don't get turned-off by the size of these, you'll get used to them very quickly and your ears will thank you.