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Polk Audio Tower Speaker (RTIA9) - Black - Single

  • Model #: RTIA9
  • Web Code: 10090953
(7 ratings)


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.
  • 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)

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Customer Reviews

5.0 / 5
Based on 7 ratings,6 Reviews
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  • from Windsor
  • Jul 30, 2015

Great Speaker

Finally upgraded to these after running a pair of Rtia7's for a few years. These are worth the upgrade. Get yourself some good clean power and make sure your crossover is set low enough to appreciate the extra room you have with these. Paired with a Csia6, some surrounds with a good sub and you have a solid set of speakers that will take most anything you want to throw at them. I've been a Polk guy for years so I can't say how they compare to others out there. But I can't find anything wrong with them. Some say they can be bright with certain receivers. I've yet to hear anything from them I don't like. They're great for movie night and even better for two channel music listening. If you catch them on sale, you wont be disappointed you bought them. They're great looking, built solid and are about as heavy as you'd want to move on your own. They're very deep so make sure you have room for them. You can run them with a good receiver. But at some point you'll want to get yourself a separate amp and feel the sound. 200 watts really open these up. Great speakers for the price especially if you can get them on sale.

  • from Hamilton, ON
  • Jun 26, 2015


I decided to go all out. WOW!!!! Make no mistake.... this is the best set of speakers I have ever owned. I purchased 4 RTIA9 speakers with the Polk Audio center CSIA6 and 2 Polk Audio DSW 660 sub woofers. The sound is amazing. These speakers will take anything I give them and more. They are very clean and detailed. My music and watching movies is like nothing I have ever heard. I'm driving this system with the Marantz SR7008 receiver, with plenty of power to spare. I totally recommend these speakers. I've been an audio guy all my life and have owned some very exotic gear.... But these Polks went way beyond my expectations. Could easily sell for more. Polk Audio has a winner here. Again I totally recommend the RTIA9 speakers. You will not be disappointed.

  • from Vancouver, BC
  • Jun 22, 2015


You will notice a massive jump in sound quality even when connected to a very poor power source, and it just gets better the more wattage you pump through them.

  • from Verdun, QC
  • Jun 04, 2015

Best overall speaker in this price range

Got these speakers about a year and half ago at a crazy lost inventory price (too good to be true). I was not looking for speakers that day but when I saw them just standing there with the unbelievable price tag I had to by them no matter what. I was always very interested in these speakers but was very please for years with the speakers I had (Mission 705) and never thought to change them. Brought the Polks home and tested side by side for a week against my Mission's and in the end I decided to move on and go with the RTI A9's as they were newer and sounded better. These Polks are awesome speakers, crisp highs, natural mids and nice tight bass when powered properly as they are 500 watts each. I just recently tested a pair of Klipsch RF-82's (RF-800) on my system vs. my RTI A9's and the Polks are definitely a better speaker sound wise, build quality and esthetics. Don't be fooled by the Klipsch playing louder due to their higher sensitivity. The RTI A9's are basically the same speaker as the older model RTI12's just with a few small cosmetic changes, less brightness and fuller sound so if you can get your hands on either pair you won't be sorry.

  • from Peterborough
  • Apr 27, 2015

Ding ding ding we have a ......

... Winner!! These are rated for 500w per speaker. The power on any receiver you purchase will not be anywhere near what it tells you on the box. (Overinflated, peak power rating) I had these bi-amped with my pioneer 1228k @ 170w /channel. They sounded really good.... But not good enough. I bought a berhinger 3000w power amp....(probably not 3000w either) but more than enough to make these speakers melt your pretty face off. I have these set to "small" in conjunction with a definitive 10" sub and an energy 8" sub. I can't even get these speakers to distort even a little before I start breaking windows in the house. I digress, these speakers sound great bi amped but to really get the most out of them they should be powered with a decent amp. ... And they sound great at lower levels too... yay

  • from Toronto, ON
  • Apr 04, 2015

hi end sound on a budget

These are great sounding if they're powered with a good amplifier. If these are going to be part of a home theater then most likely you will have to bi amp them to get the best out of them. I've had mine for while I couldn't get them to sound right for music till I Bi amped them. But once I did there were no regrets with this purchase. they really do have a life like sound when they get enough power. these will be disappointing with low power amps. you can pay more for something with better looks but you re really going to need to spend to beat them in terms of sound quality. something to keep in mind is that they are pretty big and heavy too. get someone to help you unbox and move them into place.