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Polk Audio RTi A5

Floor-standing speaker (Black)

Item # 107RTIA5B

You can count on the Polk RTi A5 for clean, precise music and high-impact home theater.

You can count on the Polk RTi A5 for clean, precise music and high-impact home theater.

Top seller

Item # 107RTIA5B

Ships free today

In stock

$399.99 -$180.00 Special purchase

$219.99 each

Other options

About the Polk Audio RTi A5

Natural sound from slender tower speakers

You can count on the Polk RTi A5 for clean, precise music and high-impact home theater. This slender tower speaker uses patented Polk technologies for true-to-life sound, and its curved edges and real wood veneer finish give it a handsome, refined look.

Natural sound from slender tower speakers

You can count on the Polk RTi A5 for clean, precise music and high-impact home theater. This slender tower speaker uses patented Polk technologies for true-to-life sound, and its curved edges and real wood veneer finish give it a handsome, refined look.

A high-tech approach to accurate sound

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. Polk's exclusive PowerPort® technology 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 A5 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 A1 or FXi A4.

Got wire?

Most speakers don't include any. Learn about choosing and installing speaker wire at the Crutchfield Learning Center.

Shop our selection of speaker wire.


Product highlights:

  • video-shielded
  • bass-reflex (ported) design
  • frequency response 40-26,000 Hz (-3dB)
  • handles 20-250 watts
  • 1" Dynamic Balance® silk/polymer tweeter
  • dual 6-1/2" 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
  • 10-9/16"W x 39-5/8"H x 15-7/8"D
  • warranty: 5 years
  • Our 60-day money-back guarantee
Priced each
  • MFR # AM5575-B

What's in the box:

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

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Polk Audio RTi A5 reviews

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More details on the Polk Audio RTi A5

Stacey B.

Features & specs

Enclosure Bass Reflex
Finish Real wood veneer
Color Black
Tweeter Soft-Dome
Tweeter Size (inches) 1
Midrange Size (inches) N/A
Woofer Size (inches) 6.5
Woofer Composition Polymer composite
Woofer Surround Butyl Rubber
Built-in Powered Sub No
Dolby Atmos Drivers No
Video-Shielded Yes
Connector Type 5-way post
Bi-amp Inputs Yes
Parts Warranty 5 Years
Labor Warranty 5 Years
Power Range 20-250
Frequency Response 40-26k Hz
Sensitivity 90 dB
Impedance (Ohms) 8
Subwoofer Amp Power ---
Height (inches) 39-5/8
Width (inches) 10-9/16
Depth (inches) 15-7/8
Weight 40 lbs
The Polk Audio RTi A5 replaces these items:

Product Research

Driver Technology
Enclosure Design
Mounting Options

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 two 6.5" polymer composite woofers. Two 6.5" 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.

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 also tweeter 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. This venting system allows air velocity to slow gradually, vastly reducing air turbulence, and delivering greater bass efficiency than conventional ports.

Acoustic Resonance Control (ARC): Internal cabinet resonance can impart a "thick" character to voices. Polk's patented Acoustic Resonance Control port system overcomes this problem. In addition to the Power Port venting system, each speaker has a front-firing port that is tuned to suppress the internal cabinet resonance, resulting in smooth, natural midrange reproduction.

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


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 30Hz-27kHz and the -3dB frequency response is 40-26kHz.

Width: The main body of the speaker is 8.375" wide but the speakers attached feet extend beyond each side of the speaker, giving the speaker and overall width of 10.5625".


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Customer Q&A

Crutchfield asked: Why did you buy this?
Polk Audio value and price [ Jeffrey  Mar 23, 2020 ]
To match my other RTi A1's and recommended by Hogan. [ David  Jan 25, 2020 ]
chicks love big speakers [ wayout  Jan 21, 2020 ]
I've been a fan of Polk Audio speakers since the early 90's. I have two pairs of RTA-15TL's as my main and sides. I run two Velodyne ULD15 Series II subs along with a B&W Nautilus center. I bought these RTi A5's as a long overdue upgrade to my older Polk M2 indoor/outdoor which are being used as the "7's" in my 7.2 setup. Between the pair of M2's, and a pair of CS100's, I am now set up for Dolby Atmos with my Marantz AV-7702 processor. Rotel and Adcom amps supply 200 watts to each channel. [ Scott  Dec 02, 2019 ]
i seen the great reviews [ Michael  Aug 27, 2019 ]
I bought this to add to my existing Polk Audio RTi series home theater setup. Front speakers are A9, rear A7 & these A5 will be used for the side channels. [ Thomas  Aug 06, 2019 ]
Recommend by Maverick [ Eric  Jul 17, 2019 ]
Right size for my room. [ ERIC  Feb 14, 2019 ]
Match other Polk speakers in a home theater system. [ Stephen V.  Nov 19, 2018 ]
Deal [ shawn  Sep 07, 2018 ]
Great price and Great Sounds [ john  Apr 16, 2018 ]
Needed to upgrade my speakers [ Farley  Feb 11, 2018 ]
Upgrading my 15yr old PolkAudio bookshelf speakers to these new towers! [ stickywicked447  Jan 31, 2018 ]
Excellent product [ "John, the write"  Jan 26, 2018 ]
Recommended by Crutchfields staff [ DAVID D  Jan 07, 2018 ]
Replacing Old Speakers. Have had Polk for many years...sound is great ...quality is great! [ mark  Dec 31, 2017 ]
Compact size. Already have a subwoofer. [ Michael  Dec 05, 2017 ]
To replace an old set of bookshelf speakers I had been using in the media room. [ Jesse  Apr 09, 2017 ]
Love the sound quality and build of Polk Audio speakers !!! This is my third pair of Polk's !!! Well recorded music, music videos, and HD Blue Ray Movies sound great !! [ Bruce  Dec 04, 2016 ]
Sound and price [ ANDRES  Feb 20, 2016 ]
Amazing price! [ Lamont  Mar 31, 2020 ]
Great sound and value! [ Eric  Mar 21, 2020 ]
Build and audio quality are fantastic. Perfect size for my home office. And I only trust Crutchfield for audio purchases. [ Bryan  Jan 07, 2020 ]
Quality, for the price. [ Julian  Oct 28, 2019 ]
I've always enjoyed the sound of Polk Speakers over others. [ Justin D.  Feb 12, 2019 ]
Replacing old Polk monitor 75s. I have a good sub, a3s for surrounds, A6 center. This is for Master bedroom home theater, A5 have two mid drivers and with a good sub the extra sub drivers a waste. For wow Klipch and SVS fill the living room..... [ John  Sep 16, 2018 ]
I have ancient Polk SDA 2.3 floor speakers that I bought new 30 years ago. Still sound great. I also have a Velodyne Subwoofer that supplements my low end. I have some Infinity bookshelf speakers that I used as surround speakers one of which I have blown up. To replace the Infinitys, I thought a pair of floor standing Polk speakers would be just the trick. These speakers had good owner reviews which reinforced "my good choice". [ Mark B.  Jul 20, 2018 ]
Marisa said these would complement my Nad receiver really well [ Jeffrey  Apr 16, 2018 ]
I have RTI A9 front speakers and decided to add RTI surrounds. I went with the A5 instead of the FXI series due to our room layout. I also considered the A7's but I was advised the A5's would do a decent job and given our space may work better overall as a surround. [ Samanthia  Feb 06, 2018 ]
I needed speakers that would handle more power than the ones I had before after reading all the reviews I chose these speakers because they were in the price range I wanted I have never had polk speakers before looking forward to hear what they sound like thanks [ JEFFREY  Jan 27, 2018 ]
upgrade from arti3 bookshelf and they are still small enough to save space in a small room [ jon  Sep 18, 2017 ]
I have Polk center and surrounds, and need towers to replace old worn out Technics. Was tempted by the RTi A7's, but worried my receiver wouldn't adequately power them. Have a sub already to fill out lows. [ steven  Jun 08, 2017 ]
performance size and looks [ ANDREW  May 27, 2017 ]

4 questions already asked

Is this compatible with Yamaha RX-V583 / 581?
[ Sriram  May 08, 2018 ]
3 answers
Yes, of course. However I would RECOMMEND a receiver that has an output of at LEAST 100 watts per channel (RMS). The Polks will work with dozens and dozens of home theater or stereo amplifiers. Compatible and PREFERED are definitely NOT the same thing, by any stretch. Best of luck, and hope this helps you out.
[ ALEXANDER  May 09, 2018 ]
They sound great with my Yamaha
[ jeffrey  May 08, 2018 ]
Yes. These will work well together. They sound great!
[ Always Learning  May 08, 2018 ]
If I purchase these speakers, which receiver goes best with them?
[ Jim  Mar 30, 2014 ]
4 answers
Mine are paired with a Sony STR-DN1030 receiver. Great sound, plenty of bass...which is what I was looking (listening) for. This speaker was on my short list as well as recommended by Crutchfield Advisor, I figured we both can't be wrong. And I was right!
[ GEOFFREY K  Apr 15, 2014 ]
I'm using a pioneer vsx 5700s about 20 yrs old it seems to be working fine.
[ JOHN  Apr 02, 2014 ]
[ PRINCE  Apr 02, 2014 ]
They like a little power. They are fairly smooth, which I like .... not a pounder of a speaker. I really dislike speakers that bark at you. Give them adequate power and you'll be ever so happy you spent $ a few bucks more on the power/receiver. I would not pair them with any old 100 watt 5.1 receiver, they deserve better. I am using a Denon AVR-3313ci. Anything starting here (spec & $ wise) will do them justice. I prefer the open-ness of sound in detail that the Denon receiver delivers, over the Yamaha. The Yamaha is smooth and good quality as well but the Denon has a more detailed sound. This occurs based on the character as to how they are designed. The Harmon Kardon is way too bright IMO (also a character in their design and has been since the late 70's no matter what the model. Hope this helps.
[ DOUGLAS R  Apr 01, 2014 ]
Hi. I'm looking to purchase the Polk Audio RTiA5 tower speakers. My question is my receiver is a Sony STR-De595 do you think it will be a good match or to much speaker for the receiver?
[ Anth.  Jan 06, 2016 ]
6 answers
I run these speakers with a Harmon Kardon stern receiver that puts out less watts per channel that the one you reference and I have been thrilled with the sound these put out. I should also mention that i have a powered sub as well and use them mainly for listening to music .
[ KEITH E  Jan 07, 2016 ]
I'm not an expert or extreme audiophile, but when I bought my RT-5s I also upgraded to a HK3700 receiver. The combination of the two provides the lowest level of background noise and distortion that I've ever heard, and it's really one of the best aspects of the set. I generally prefer my music relatively quiet, but with such low distortion there is a frequent temptation to just keep turning it up. Good luck with your selection.
[ TOBIAS  Jan 06, 2016 ]
I am running these speakers using the receiver Onkyo TX-SR601, and they sound awesome. Some of the best speakers I've ever purchased. You should be able to compare the specs of my receiver with yours to see if they are comparable, but I doubt you would have a problem.
[ FRANK  Jan 06, 2016 ]
They'll pair up perfectly. The Polks aren't too power hungry and if I'm right you've got 500 total watts to play with. They sound awesome with my 300 total watt Denon.
[ Dario  Jan 06, 2016 ]
I think these speakers will work well with any receiver. I have two separate pairs - one purchased around 2012 (paired with an old Nakamichi RE-10 receiver) and another in November 2015 (paired with a Yamaha RXV775 receiver) and not only do they sound really good, but they are made of furniture grade wood, so you really can't go wrong for the price, So assuming a tower speaker is what you are in the market for, the Polk RTiA5's should serve you well. Good luck
[ Jeffrey  Jan 06, 2016 ]
Thanks for your question. For information on comparing two or more models I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences and help you make the best choice for your system and your budget.
[ Kenny  Jan 06, 2016 ]  Staff
Are these speakers worth the money? Are the highs and lows distinctive?
[ Steve  Aug 19, 2014 ]
5 answers
I can't answer your questions directly, but I can tell you I'm very happy with the speakers. I had some incompatible equipment, which led my older receiver to not handle my new blueray player's sound well; as a result, voices weren't coming through the speakers adequately. So I replaced the receiver and purchased a center speaker. Now all is in synch, and sounds great! I don't have surround speakers yet; that's the next step if I decide to go that far.
[ John  Aug 20, 2014 ]
Yes, for me they were definitely worth the money. Bi amp them and they sound great. Would buy them again.
[ WILLIAM S  Aug 20, 2014 ]
No. They are beautiful but, to me, the sound was muddy. I moved up to Martin Logan motion 12's (same price at the time) and was quite pleased but I was still disappointed with the limited sound stage of the folded motion tweeter. The ML's are very clear and well defined. However, I was still not happy so I ended up with Bowers and Wilkins 683's. Wow. I have heard a lot of speakers in my lifetime but these have pleased me beyond belief. Sound is like art, it is very subjective and changes as you get older. That being said, if you are young these Polk would be fine (I gave my to my son) but as your hearing becomes more refined they will leave you searching for better quality, especially in the highs and midrange. I often had to "rewind" movies because of missed dialog, poor quality mid range will cause that. Now I don't miss a thing. Good luck.
[ Laurence  Aug 19, 2014 ]
I personally was in the Stereo/Audio Retail business from the early 70's till 1985. I am pleased with these speakers .... a nice warm mid-range, not overdone ... the high frequency's are clear without over exaggeration. Bass response is extremely good. When played in stereo with a music cd that''s where they shine. I am using them in a 7.1 surround system and they do front imaging very well. So in all applications I am very pleased. Worth the money ... Yes !! Make sure you have enough amplification to drive them properly. A high quality AV receiver or separates is necessary. You will need to spend at least the same amount of $ on the receiver. Hope this helps you with your decision.
[ DOUGLAS R  Aug 19, 2014 ]
I have been very happy with these speakers and feel they are a great value. I use them for home theater with an older center channel and a polk sub. The lows are full and complimented by the sub. I also use them in stereo for playing vinyl. I turn them up pretty loud and they sound great with excellent clarity and distinct mids, highs and lows. Very happy with my purchase.
[ Adam  Aug 19, 2014 ]

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Top seller
Polk Audio RTi A7
Floor-standing speaker
In stock
324 reviews

$499.99 -$200.99 Special purchase

$299.00 each
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Fuller, more detailed sound

The Polk Audio RTi A7 offers these features:
  • features a 3-way design for more powerful bass and richer overall sound
  • one 6-1/2" midrange and two 7" woofers
  • frequency response 35-26,000 Hz
  • handles up to 300 watts