Polk Audio RTIA9 500-Watt Tower Speaker - Black - Single

  • Model #: RTIA9
  • Web Code: 10090953
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Sold and shipped by: Best Buy
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The Polk 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.

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Please Note: This product is sold as a single unit. If you wish to purchase a pair, add 2 units to your cart.
  • Acoustic Resonance Control Technology results in more natural midrange reproduction.
  • 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


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

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Customer Reviews

4.7 / 5
Based on 69 review(s) More about Customer Reviews

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Positive vs. Critical Reviews

Positive 97%

67 Reviews

Critical 2%

2 Reviews

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  • from Courtice, Ontario

WOW, Stunning

I just bought a pair; along with Polk's same series matching center, pair of rears, and their HTS 12" sub. I am blown away - these RTIA9s are unbelievable - that is to say that they have exceeded my expectations already, and I haven't even bi-amped them yet. Dimensions of sound beyond my dreams; it's like I am hearing ever song in my library again for the first time.

  • from Walkerton on.


Been trying to buy this pair, for a while now. When they go on sale, there out of stock, What a joke. I will no longer shop here.

  • from Victoria, BC

Excellent Speaker

I have a older set of Polk Monitor 12 series 2 speakers and was hesitant to try a new speaker. After a few weeks with these I can say that I'm very happy with the sound separation, bass and detail these speakers provide.

  • from Burlington, ON

still great

I have owned them for 2 years and i'm quite happy and satisfied with them . however i'm confused by a lot of comments regarding high power. i have connected bi amp high power Onkyo 820, but hear no difference vs beginner level Denon 720. i don't think my ears are not sensitive because i do can hear difference when connected to an beginner level pioneer receiver. i guess i need to try Denon 3500 or 4500 to see if high power really works better.

  • from Hamilton, ON

sold mine after 1 year. require lotss of power

you will need a powerful amp to drive this. powerful amp is very expensive and u might need 2. i sold mine after 1 year of use. separate subwoofer is the way to go. Klipsch is waay better . power efficient. and they dont do this 2 speaker and 3 subwoofer in 1. make sure to check the power require. i dont know how people left 5 star. u need two amp to drive this

  • from Toronto, ON

Great Speakers!!!

Bought my Polks about1 month now, I can't say enough i absolutely love them. Just their appearance makes my guess say wow!!! Once I play them the bass and clarity have people listening for hours at a time. Great speakers.

  • from Kelowna, BC

don't bi amp theses speakers

Bought one set Jan 2018 did the bi amp thing great for 5 months then the top end blew on both speakers bought geek squad warranty..I find out I have to go to Polk for the first 2yr factory warranty before geek squad will do anything polk does not have a local repair surrey i'm told so I call Polk american they are they refer me to Polk.ca I spoke to a SAM polk@morgantech.ca he told me he would send the parts and to take the crossover out because it was a 3.5 hour travel for me one way to the closest polk warranty place he would send me the replacement crossovers and tweeters and also two midrange ....He will not now respond to my calls or emails... bought 2nd set of theses may 2018 did not bi amp so far they sound great Polk would I buy again....... Never Glynn Kelowna

  • from Kingston, ON

Updated review - 6 months, 6 stars

Bought this pair 6 months ago, so they are now properly broken in. Running them as part of a 5.1 setup, biamped from a Sony STRDN1050. Six months in, and I can't say enough. They are incredible. Movies are great, with my 10 inch Polk sub an unnecessary bonus, but it's the music that is blowing my mind. Full, rich, limitless power...just buy them. You won't regret it.

  • from Tofino,B.C.

Elegant sound &style

got them on sale and worth every penny. have them as fronts on an Onkyo Tx-nr676 in Atmos 5.1.2.setup with a Polk CSR center, four T-300 bookshelves for surround and heights, and and older Polk PSW202 subwoofer which I thought I wld not need as the 9s bass plays lower but I feel I still need the sub for the low end oomph for movies and various music. they sound amazing at all volumes and friends and family just say wow when they see them and hear them play there favorite tunes. a great buy when on sale, good build quality and very heavy.

  • from Vancouver, BC

Good for if on sale !

These speakers on sale are an awesome deal, as for quality they are really good and sound awesome. My 4 star review starts at drive ability, With the wattage they are rated at they almost need 750 watts per ch. with out a lot of power they don't sound near as good as they should. Now reasoning for my 4 star review is these are not avr friendly by any means and even using avr bi amping because that is not sufficient enough. Hopefully if people read this I would suggest a minimum 300w rms a side true watts not (bi-amped). you will need a power amp if you want to use these speakers correctly. If you are not going to use a power amp do not buy them. You should be getting the A5s or A7s. I tried bi amping with my Yamaha 1083 while waiting for my amp to come, from there I ran a cerwin vega cv-1800 400w pr ch and they are much more alive. But better yet im going to run 400w on the woofers (cv-1800) then i will be running the top portion with the 1083. @110w pr ch. Some may be happy with the avr 110pr chanel to the whole speaker but to anyone who knows speakers like say an old school pair of cv D9s you will have a lot of work to get them close. Happy listening !

  • from Kingston, ON


Like two other reviewers here, I had a pair of Polk T600's which were very underwhelming. I upgraded to the RTiA9's on a Boxing Day sale (400 each), have them bi-amped from my Sony STRDN1050, and...wow. I have them as the front speakers of a 5.1 system, but it's 2.1 listening that's an absolute joy. Can't recommend them highly enough. I just hooked them up tonight, and can't wait to get them properly broken in and warmed up. I waffled about these for over a year, and shouldn't have waited.

  • from Richmond Hill, ON

Perfect speaker for it's price! )

Purchased a pair on sale at an awesome value. Speakers provides you with an crystal clear sound in their category. Can't say I heard something better in this price range. For deepest effect you might need a sub (be ready neighbours will come complain immediately) , but for music lowers with a proper amp you would enjoy the speakers by them self. I've tested them with Sony STRDN1080 and Onkyo TX-NR676. Sony has better reviews rating and is a leader in 2017, but onkyo in this particular case opens the speakers in full range, especially at higher frequencies - you'll feel an effect like someone singing just in-front of you and mids will go right through your body. Sony gives them a bit blurry standard sound, with much less details. If you know and feel the difference between cheap and quality headphones and the difference between 128kbit and 320kbit sound track. It you can catch it - get these speakers for sure! Play with an amp and you'll truly enjoy them. )

  • from Toronto, ON

Excellent Speakers

I bought two of these towers and they are amazing. I recommend them 150 %. I bought them when they were on sale which is quite often . Thank you Polk Audio.

  • from Ontario

Great set of speakers.

Very good speakers, don't require a sub if you have them sufficiently powered with a decent amp. i would recommend to only buy them on sale for about a third of the full price. which happens usually a couple times a month.

  • from Sudbury

Excellent Speaker

With a powerful enough amplifier, these are an awesome sounding speaker. IF you are using a multi-channel Home Theater Receiver/Amp with questionable power ratings, bass response might be weak but it's always been that way with any speaker using an amp like that. Used with an Amp/Receiver with a TRUE 100W RMS per channel rating, these towers do NOT need a Sub. Great build quality, dispersion and hits all the marks for the 3 key areas: Bass, Midrange and Treble.Look great in any room.

  • from Scarborough, ON

Great price and good quality!

Bought 2 pairs of them on sale! They look fantastic. Sound is very clear. Great for watching movie together with a subwoofer. Wish the low frequency response could be better for music listening! My 25 years old Polk Audio speakers have better and natural bass.

  • from Owen Sound, ON


Like another reviewer here, I too have Polk's T600 speakers except I didn't return mine. It wasn't until I picked up these bad boys for an incredible price at Best Buy that I realized just how much the T600 was lacking, especially in the bass department. They sound great even when powered only by a Pioneer VSX-1325 receiver. Some day I would like to add an amp to the setup. With these speakers I know I will have lots of headroom.

  • from St. John's, NL


I purchased the RT1A9s for my summer residence. But after listening to them concluded that they are much to good to be used only on weekends. Booming bass and crystal clear high end. Definitely no sub woofer required. No problems with shipping, the speakers arrived on the scheduled date. Great speakers. Exceptional quality for the sale price. Highly recommended to anyone looking for good sound at a good value.

  • from Windsor, ON

Sounds are as expected

The speakers are huge, sound great and are generally as expected. Good deal at sale price. Some issues in shipping because of weight of speakers. Had to go down to Purolator warehouse to get them as they would not deliver to house. I would recommend them as great with 5.1 surround.

  • from Estevan. Sk

The best

I wast told not to but these speakers unless I had a good power amp to power these beasts. I bought them anyway and am powering them off a pioneer receiver. They sound so good off that receiver I can't wait to actually put some power to them. If they sound this good with receiver power then they will blow my mind when I get the proper power they need. I have no regret. Weather you buy them on sale or for retail price they are worth every penny.

  • from Barrie, ON

Amazing Speaker

Very nice speaker. I have them hooked up to a 36 year old pioneer sx-d7000. Truly amazing sound. I am hearing things in songs I have not heard before. I also have a set of rtia7s hooked up to a nad t777 receiver. These are good but the a9s are much better. The a9s are well worth the extra money.

  • from Up North

Amazing speakers

I will start with the packaging of these speakers in their shipping boxes. HORRIBLE, there is minimal Styrofoam packaging used, and by the time the speakers arrived the Styrofoam is broken into almost powder and does nothing. I would give the packaging from Polk Audio a negative rating. I had to order 5 of these just to get 2 speakers that are acceptable. I actually gave up when I received speaker number 5 and just picked the one with the least amount of damage and shipped the other 3 back. 4 out of the 5 I had to order had damage to the cabinet, some were completely smashed in on the edge or corner and another one had the bottom broken. I agree that Purolator damaged the speakers and I have never cared for Purolators lack of care with everyone's packages but still. All Polk Audio had to do was double up the Styrofoam and use a more durable type. Enough about that though, the speakers look amazing (cherry finish) and sound just as amazing. I have almost 30 hours on these so far and the sound has improved (most notably the bass). I could honestly say that if someone wasn't a crazy bass lover that these do an admirable job with even the very low end. I still definitely prefer my 2 ported 4000w home theater subwoofers, but for late night these still render bass nicely. I have these bi-amp'd being fed 600w RMS per tower and they perform very nicely. I have run Audessey XT room correction but the response curve is fairly level to begin with. Over all, especially if you get them on sale, these are amazing speakers for the price. Just drive and pick them up from a store vs. having them shipped.

  • from Markham, ON

quite impressive

I first tried the Polk T600 and the disappointment was so big that after I got them, I returned them to the store in 3 hours ! I gave a try to the Polk RTi A9 and what a surprise ! These are totally different speakers ! got them on sale for [price] (tax included). I use a tube (home brew) amplifier 2x40w (RMS) bassed on EL34 tubes (2 chanells push pull supplied at 500Vdc). The crystal sound and deep base are very convincing ! The only down is that you need to pump at least 10W into the speaker in order for the base to start being up to expectations, but in my case this is easily achievable so not that bad. These speakers are are a special breed Over all for the price I paid, I'd easily rate them 5 out of 5 !

  • from Toronto, ON


These things are absolutely amazing, provided they're amplified well! They're 500W, so make sure you have an amp that is adequate for them and you'll be amazed by the results. They also go on sale then and again, so you might be able to catch them at a discount.

  • from Brampton


Bought these speakers because the rating and reviews said I should, but, until today, I had never heard music like this, unless it was a live band.

  • from Toronto, ON

Excellent Speakers

I am just fascinated about these speakers. Now, I listen more music that watch TV. It is incredible ...

  • from Calgary, AB

Finally !!!

Very pleased , I am loving these speakers . I have them modestly powered with an Onkyo receiver rated @ 170 watts per channel and they sound great even at maximum volume . I know these speakers can handle a ton more power . Ive only had them for a couple days , but I can say they sound better then anything else I have owned . In the future I will bi-wire them or add an intergrated amp to give them some extra power . But right out of the box these things are awesome . Loud , clear , precise and at a discounted price I am very happy with my purchase . Grab these well you can . Everything ive heard from reviews on the net are true . For under a grand these speakers are phenomenal . No regrets , one of the best audio investments I have made . 5 stars !

  • from Toronto, ON

Polk Audio RTIA9

Just Amazing speakers. WOW!

  • from Toronto, ON

Single Speaker

Can i hookup single speaker to the receiver or i have to purchase a pair?

  • from Gatineau


Unbelivable clear an clean sound. Top notch bass.

  • from Oshawa

Amazing sound at a great price but suggest waiting for a better sale price.

I'm powering these RTIA9 tower speakers off a Denon x4200 reciever which provides an outstanding quality. I have paired these with the rest of the series. RTIA 3's RTIA 1's And the RTIA5 center channel which also provides superior performance.For subwoofers, 2 psw125's all from polk audio.

  • from Smooth Rock Falls, ON

polk = quality

i'm new to the audio system and very happy with my Polk Audio RTIA9 500-Watt Tower Speaker . build strong and easy to notice the quality .

  • from Sturgeon Falls, ON


Always like the POLK Brand of speakers but really never gave them a chance. I been a huge fan of Paradigm Speakers and for the past 30 years that all I have been using. I saw the Polk's on sale at Best Buy so with the price and Best Buys great return policy I decided to give them a listen. I was shocked and amazed of how well these speakers sounded, lots of bass and highs, great imaging and a remarkable full sound speaker! For the price of [price] ea. regular [price] you can't go wrong, these do not disappoint . I don't know why Polk is offering them for such a low discounted price, but after giving them a listen, I'm glad they did. I was so impressed with these I went back and purchased a second pair and using them as the rears in my home theatre, some might say it is an overkill but these really deliver! My Paradigms are up for sale!

  • from Laval, QC

Nice speaker

Sound is nice and loud given the suitable amp.

  • from Thunder Bay, ON

Great Speakers

Own 4 of these puppies. Got two at Christmas for [price] each, and a month later they when on for [price] each. Awesome spreader so far. You do need a big amp to drive these. I'm running a Yamaha Rx A 3040, along with a Yamaha Px 10 power amp on first two Channels. Wow!! Can't turn it up it's to loud, speackers take every bit of that power. Rated at 500 watts and I have 1000 a side. They take all I can give them! Sounds like a theatre in my living room when watching a movie. Buy these speakers! Wait for a sale, I watched them for months, then finally I saw them cheap. [price] regular price. I saved like [price] on 4. Only bad thing I can say is the front screens come loose constantly and have to push them back on. They are heavy, around 75 lbs each. Good luck and enjoy!

  • from CBS

Amazing speakers

These speakers are absolutely amazing.. if you spend alot of time watching movies or listening to music and you have the power to push them.. they're worth the money..its not just the volume of the speakers either but the sharpness of the sound isincredible. You can listen to a song you have listened to a thousand times before and hear things you have never heard before.

  • from Fort Saint John, BC


Just got my speakers today for an insane deal of under 1000 Canadian for the set. I have read all about these speakers. There is the insane audiophiles that will tell you they need to be properly amped to appreciate them in there best, but I have the hooked to my Yamaha rx-v781 right now and they are amazing. I have them "bi-amped" through the receiver. Lots of ideas on that as well that it doesn't actually do anything but it sounds amazing to me. I understand that they are getting a very small percentage of power compared to what they can actually handle. I also understand that they will sound way better when I get a proper amp for them. But regardless they sound amazing. I have absolutely no complaints and to anyone that is thinking of getting a set. Just do it. Amp them down the road if you are not happy but at least you got the set. DO IT.

  • from Toronto, ON

You WILL NOT be disappointed

Got these on sale around Boxing Day. Too awkward for one person to manage, due to the size of the speakers and the overall bulkiness of the packaging they come in. Two people are ideal. At first I was using these speakers with my Yamaha RX-V777 receiver and was extremely pleased with their performance, knowing that at some point I would get a separate powered amp to push them. Hooked them up to a Crown XLS-1502 and WOOOOOOOOWWWWW, is all I can say. The clarity, the punch in the mids, and the volume without the distortion. Just Wow. Rounded them out with an Acoustech 12", and I just sit back and melt from the output. Do yourselves a favor and get these. Preferably on sale.

  • from oakville, ON


amazing quality precision dont let the price tag fool you these are worth the 1200 each amazed with them perfect for my setup and 4k tv Caution though you will need a 1000W receiver/amp to power them to the full potential as they are 500w each.

  • from Thunder bay

Awesome, but very hungry speakers

I bought these speaker and set them up in my home theater which I use for both general and hard core music listening and general and hard core movie watching. My home theater amp is a Denon at 120 WPC, and to me these speakers were very 'bright' sounding. Considering the 3 large woofers, I expected a whole lot more lows and punchy lows...but they were missing. I heard these speakers need a lot of power, given they are rated at 500 wpc, so out I went and bought a second amp and bi-amped these speakers with an Adcom 200 wpc hard core amp. To be clear, my Denon is now wired to the high and mid-range speakers only, by removing the connector plate at rear of speakers (as designed) which the Denon now provides 120 wpc to just the top speakers (highs) and the Adcom 200 wpc amp is connected to power only the 3 lower woofers. So collectively I am feeding 320 WPC into these power hungry speakers. Ok....let me tell you..... My speakers are now happy....very very happy....which makes me very happy. The difference is night and day.....these speakers are awesome sounding and you seriously need a set. But, fully understand...to get them playing their best....they need boat loads of power...boat loads. My new Adcom amp is serious power and there is no doubt you will need a second amp like this to get them sounding their best. Thank you Polk....a great speaker...love them! One last word...I have since sunk speakers in the wall in a 26 deep, 12 wide and 55 high drywall cavity with no noticeable difference in sound quality....this was a concern given they are ported in the rear as well as the front.... no issue...sound and look awesome.

  • from Toronto, ON

nice set of speakers

I got a pair on boxing day sales and for that price, it's well worth the bucks!! It just sounded awesome. The sound for mid and high frequency are so crisp! :) All in all, I love it!

  • from Halifax, NS

Great Sound

I bought these speakers during Best Buy's boxing day sales, and they are worth every cent. The sound they produce is noticeably cleaner than what you would be accustom to in lower-end speakers, especially for music. They do a fantastic job with capturing bass - especially the lows - there is absolutely zero distortion. I can assure you that you won't regret purchasing them. A word of caution: these speakers each weigh roughly 80 pounds in their packaging, and the boxes they come in are huge. I can't urge you enough - have two people unpack them - and be careful when placing them upright. The 4 "feet" on each speaker base can be easily damaged it not placed on the ground with care.

  • from Montréal, QC


Quality/price ratio is excellent. I am using those speakers in my home theater with Denon AVR-3310Ci. Excellent results.

  • from Fredericton, NB

Professionally built - clear audio

The positive reviews don't lie - this product is designed well, visually and internally. I've used this mininally with 2 stereo speakers for 2 weeks so this review is limited. The setup was VERY easy! The onscreen instructions are phenomenal . THe calibration is professional. Remote is not backlit - be warned. I haven't had any disconnect issues in the 2 weeks so far (wifi or bluetooth). The sound is very clear with 2 Polk Rtia9 loudspeakers which are at 8ohm. No sub yet.

  • from Oshawa, ON

Polk RTiA9's Good So Far

Still in the break in period... they do have a nice sound ... I need to experiment more with them to totally know I am in love with them or not . I am running a pair of 7b brystons on them so they are getting 500+ watts each . i will write another review in a month once they have fully broken in . but great value for what i paid! and they are pretty powerfull too

  • from Winnipeg, MB

Polk RT1A9's versus Bowers @ Wilkins

I have a older media room setup. The sound comes from a Denon AVR 5803 which has incredible power (12 x 175 watts). As I like lots of Bass, I supplemented the system with 2- 300 watt - 12" Velodyne subwoofers. The speakers that I have been using in the media/sound room are a pair of B & W's (similar in size to the Polk RT1A9's, a B & W center speaker, a pair of older Bose 601's and 801's.I also have built in wall and ceiling speakers which are powered and paired with a smaller Denon AVR receiver which is connected to the Denon 5803. When you power things up and watch/ listen to the satellite system, dvd or cd, it's an ultimate hearing experience. You fee the sound and music right through to your bones. While doing some boxing day shopping, I stumbled across a pair of Polk RT1A9's...the price was so reasonable that I brought a pair home and swapped them out with the Bose 801's. The increase in output and clarity was awesome. I also compared them to the B & W towers which have 3 large aluminum drivers an 2 kevlar midranges with a very precise tweeter. I was just blown away that they sounded the same as or better than my B & W's. Needless to say, the Bose 801's will have to find a new place to reside somewhere in the house. Had I seen these Polk's at the same time that I ended up purchasing the B & W's, things would have been different - I definitely would have purchased the Polk RT1A9's. They are awesome sounding - period! I have never participated in online reviews previously but felt compelled to share my experience with my recent purchase...

  • from Hamilton, ON


Got the speakers at boxing day for a great deal and just wanted to test and see how well it will work with my Denon AVR 587 ... its an older 7.1 channel receiver but still happy with it and want to keep it for a couple more years ... my initial concern was the 500 watt power that comes with RT1A9 as it seemed too much for my 75watt per channel receiver...did my research and it seemed to be just fine so i decided to buy and see for myself ... I set it up with my 7 other precision speakers, which Im also happy with for years now and the result was CUTTING EDGE, AMAZING SOUND!!! Cant get enough of it! It blended so well with my other speakers and can hear every detail be it playing a music CD or watching movies...DEFINITELY RECOMMENDED for music and movie lovers out there. I will have this speaker with me for a very long while. Its ULTIMATE SOUND is worth every penny...and getting it for great price on boxing day is a fantastic bonus!

  • from Montréal, QC


Shipment delayed. Could not wait, I just went to a bestbuy store to pick a pair. Attached them to a xls1502 amp. The sound just pours out and fills up a whole room. Yes, POUR is the word. Boxing day price is good.

  • from Calgary, AB

Awesome Speakers

I've owned the Polk RTi8's for a number of years but thought I'd make the jump to these and they did not disappoint that's for sure. The incredible sound was obvious as soon as I turned them on. I took the advice of one of the other reviewers and set them up in bi-amp to give them more power. If you have a newer receiver you'll want to set up your system as bi-amp with that as well. My RTI8's are now acting as surround sound speakers at the back just to make my new sound set up all that much more awesome. I highly recommend these speakers.

  • from Kamloops, BC


I recently moved to a new apartment building with rather noisy neighbours above me, they might have a pet bear by the sounds of things. My old home theatre setup wasn't enough to drown out the growling or foot steps. These do the trick, and they sound incredible while doing so. Even the condo board seems to agree, they have sent me several notices in my mail and even sent the cops over once to have a listen. Highly recommended!

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