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Polk Audio RTi A3

Bookshelf speakers (Cherry)

Item # 107RTIA3C

The Polk RTi A3s feature Polk's exclusive Dynamic Balance® drivers for smooth accurate response.

The Polk RTi A3s feature Polk's exclusive Dynamic Balance® drivers for smooth accurate response.

Top seller

Item # 107RTIA3C

In stock

$399.99 -$160.00 Special purchase

$239.99 pair

Other options

About the Polk Audio RTi A3

Enjoy rich, dynamic sound  

The Polk RTi A3s feature Polk's exclusive Dynamic Balance® drivers for smooth accurate response. The woofers and tweeters undergo careful laser testing to help identify and eliminate unwanted resonances that can hinder a speaker's performance.

Enjoy rich, dynamic sound  

The Polk RTi A3s feature Polk's exclusive Dynamic Balance® drivers for smooth accurate response. The woofers and tweeters undergo careful laser testing to help identify and eliminate unwanted resonances that can hinder a speaker's performance.

Thoughtful cabinet design

Cabinet cross-section

The asymmetric cabinet helps fight vibration for clearer sound.

The RTi A3 sports a newly designed asymmetric cabinet that helps deliver rich, clear sound by combating vibration and increasing rigidity. You'll enjoy remarkably clean mids and highs for a well-defined soundstage, along with tight bass. Plus, the cabinet's curved edges give the speaker a polished look, enhanced by a real wood veneer finish.


Great for home theater or stereo music setups

The RTi A3s do a great job with stereo music on their own, but you can team them with a powered subwoofer for even better bass. Or use two pairs as your home theater's front and surround speakers for dynamic, detailed movie sound. For larger rooms, the RTi A3s work perfectly as surrounds in combination with RTi tower front speakers.

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


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.

READ LESS

Product highlights:

  • video-shielded
  • bass-reflex (ported) design
  • frequency response 50-26,000 Hz (-3dB)
  • handles 20-150 watts
  • 1" Dynamic Balance® silk/polymer tweeter
  • 6-1/2" Dynamic Balance polymer composite woofer
  • PowerPort® technology improves bass response without introducing distortion
  • 8-ohm impedance
  • sensitivity 89 dB
  • dual 5-way binding post terminals
  • real wood veneer finish
  • 8-3/8"W x 14-13/16"H x 14-3/16"D
  • warranty: 5 years
  • Our 60-day money-back guarantee
Priced per pair
  • MFR # AM3372-C

What's in the box:

  • 2 Cherry bookshelf speakers
  • 2 Self-tapping screws
  • 8 Self-adhesive rubber feet
  • Owner's Manual
  • Template
  • Online registration sheet
  • Polk Audio product brochure

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Polk Audio RTi A3 reviews

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More details on the Polk Audio RTi A3

Stacey B.

Features & specs

Enclosure Bass Reflex
Finish Real wood veneer
Color Cherry
Video Shielded Yes
Tweeter Type Soft-Dome
Tweeter Size (inches) 1
Midrange Size (inches) ---
Woofer Size (inches) 6.5
Woofer Composition Polymer composite
Woofer Surround Butyl rubber
Power Range 20-150
Sensitivity 89 dB
Impedance (Ohms) 8
Frequency Response 50-26k Hz
Connector Type 5-way post
Bi-amp Inputs Yes
Height (inches) 14-13/16
Width (inches) 8-3/8
Depth (inches) 14-3/16
Weight (pounds) 16
Mounting Bracket Included Keyhole
Recommended Stand Height (inches) 24-31
Parts Warranty 5 Years
Labor Warranty 5 Years
The Polk Audio RTi A3 replaces these items:

Product Research

Driver Technology
Enclosure Design
Connections
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: Each speaker features a 6-1/2" polymer composite woofer for smooth wide-range response with low distortion. For high performance durability, each woofer uses a butyl rubber surround.

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

Frequency Response: The overall frequency response is 40Hz-27kHz and the -3dB frequency response is 50-26kHz.

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: Each 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.

Connections

Dual 5-Way Binding Posts: Each 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

Wall Mounting: The Power Port back plate on each speaker has a keyhole slot, allowing the speaker to be mounted on the wall using the supplied 2-1/2" wood screws.

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

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Customer Q&A

13 questions already asked

Q
Bi-amp question- I have a Sony STR 1070 rated at 100W@ 6ohms... These are listed at a max 150W- Would the receiver overpower these? Do I need to look at something that is rated +200W, or can each input handle 150W?
[ Joshua  Jul 04, 2019 ]
2 answers
A
Not at all. I have mine bi-amped on a Yamaha 95 was per channel reciever....never an issue I had them on a 100 way Sony before upgrading to the Yamaha. They are crystal clear at all levels. Highly recommended.
[ Patrick  Jul 18, 2019 ]
A
I have never bi-amped. Note that speaker impedance varies with frequency as far as I know. How the Mfg calculates the nominal impedance I do not know. There may be charts for this particular speaker-try on the web. If you overload it is usually the tweeter that opens up. You can place a fuse in the circuit if Bi-amping, the Mfg could suggest the value. I believe max handling is for music program only.; the rating does not cover continuous signal. Even ferrofluid needs some time to recover. I did not keep these speakers, I found them sharply peaked at narrow treble frequency spots. (Personal opinion only) You have to look at the type of power supply for the amp output stages- usually unregulated- which can cause the peak power not to actually be the rated power, essentially protecting the system but diminishing the punch. The only regulated output for the output stage that I know of was the Dynaco stereo 120. I believe a modern version of this regulation exists in the Behringer EuropowerEPQ900. ANYWAY: Ask Polk what they think, then ask the same from the receiver Mfg. Look at YouTube reviews For your amp & speakers. I have the EPQ900- IT HAS Limiter if needed, I have not enabled it. Speakers are KRK (passive) R6G3.
[ DEREK  Jul 17, 2019 ]
Q
Bi-amp question- I have a Sony STR 1070 rated at 100W@ 6ohms... These are listed at a max 150W- Would the receiver overpower these? Do I need to look at something that is rated +200W, or can each input handle 150W?
[ Joshua  Jul 04, 2019 ]
1 answer
A
Hi Joshua, thanks for your question. They Sony STR-1070 will actually be delivering slightly less power at 8ohm, than it is at 6ohm, since the Polk Audio RTi A3 are an 8ohm speaker you shouldn't have any issues with overpowering the speakers, even with bi-amping them. Feel free to chat with an Advisor online, or give them a call at 1-800-324-9695, they will be happy to answer any of your questions!
[ Jess  Jul 16, 2019 ]  Staff
Q
These speaker appear to have a curve to the cabinet? Was curious about laying them on their side
[ Mike  Apr 06, 2019 ]
3 answers
A
The sides are certainly curved. You could lay them, but the speak face would not be perpendicular to the floor nor would you be able to stack them.
[ Daniel  Apr 08, 2019 ]
A
I would think they are designed to be upright. Not that they would not work, but the sound field would be different. Vertically, as intended, there is lnteraction between the front radiators and the back port baffle where the wave goes around the curved part. Most likely it will be phase or frequency altered by this, as intended by the design engineers and measured by instruments. The speaker will not be damaged by placing it on its side, and the sound may not be noticeably different to the ear. The front and reflector waves are supposed to interact while going round BOTH sides of the speaker. It stands to be seen what the effect will be with only one side. Place one speaker upright and the other on its side, provide a mono signal and A/B between speakers. You may notice nothing. However the sideways one may sound different due to larger contact area with the shelf/table it is on. In this case try a pad under it. (Use a towel for a test.) Personally I have neve r laid speakers on their side, with the exception of the AR3a. In that case either way was ok; however these were square box speakers designed with an anechoic chamber, not with a computer. For me sound ( music) is a lifetime interest; I have been at it for 60 years. Yours is an interesting question. Investigate the effect of speaker placement in the room; there are articles available on the web. Best wishes...
[ DEREK  Apr 06, 2019 ]
A
Mike. You are absolutely correct.The curved cabinet sides is a first for me also. Due to space limitations, I had to lay them down on their sides. I placed an inexpensive computer mouse pad between the entertainment cabinet, and the speakers rounded side. This served a two-fold benefit; speaker finish protection, and cabinet reverberation conductance into the cabinet. I bi-amped the speakers and the sound quality is absolutely amazing. This is my second Polk speaker acquisition from Crutchfield. I have absolutely no regrets, only good vibes of this awesome system.
[ Patrick  Apr 06, 2019 ]
Q
Is this a good surround speaker? I have 7.1 RTIA7, RTIA3, FXIA6, CSi center. Was wondering if the rtiA3 was a wrong choice for L & R Surrounds. as my FXis are my rears.
[ justin  Apr 02, 2019 ]
2 answers
A
I am using these with a turntable as stereo speakers, sorry I can't answer your question
[ John  Apr 02, 2019 ]
A
I use them for my front and rear speakers since I bought 4 of them. They work very well and will put a ton sound out if turned up.
[ Phillip  Apr 02, 2019 ]
Q
Is this a good surround speaker? I have RTIA7, RTIA3 and FXIA6, CSi center. Was wondering if the rtiA3 was a wrong choice for L & R Surrounds. as my FXis are my rears.
[ justin  Apr 01, 2019 ]
4 answers
A
Yes, I am very pleased with the speakers I purchased from Crutchfield. Their support is superb!
[ JAMES  Apr 04, 2019 ]
A
I would think they would work well as surrounds
[ Larry  Apr 01, 2019 ]
A
Personally I would use the FXIs as surrounds and the RTiA3s as rears. They would be good for that purpose. A lot of that depends upon the room layout. I am looking to add FXis as surrounds myself..
[ DAVID  Apr 01, 2019 ]
A
I use them as my L/R units, along with 4 rears (overhead), a center speaker, and a deep bass. Very, very happy with the whole setup, and the advice I got from the Crutchfield folks. If you haven't give them a call, and they will steer you in the right direction.
[ DAVID  Apr 01, 2019 ]
Q
Can you send it to Czech republic if i buy it?
[ Samuel  Nov 07, 2018 ]
1 answer
A
Thanks for your question. Crutchfield can only send items within the U.S. and U.S. Territories. We are not able to ship to international locations.
[ Kenny  Nov 09, 2018 ]  Staff
Q
How much power are you feeding these?
[ Big  Jun 19, 2016 ]
6 answers
A
I have 2 pair of these using 2 Denon receivers. different rooms one 90 watts, one 95 watts per channel. great sound!
[ RICHARD  Jun 22, 2016 ]
A
One hundred watts per channel and they sound great. I had them originally connect to a Yamaha amp that put out about 30 watts per channel in my living room (this was temporary) and they sounded fine at low volume. But, on my new Denon receiver, they seem happier and sound really good. Probably could take 120 with ease.
[ John  Jun 21, 2016 ]
A
I have a Marantz SR7009 125w. They really could handle them.
[ ANTONIO A  Jun 21, 2016 ]
A
95 amps
[ JAMES  Jun 21, 2016 ]
A
Connected to Denon 3311c 125Watts per. I re-allocated my in ceiling Front for Height and bought these to use as Front speakers. Mixed with surround and surround back in wall speakers (all Polk) sounds pretty good when the right content is playing.
[ THOMAS C  Jun 21, 2016 ]
A
I am powering the Polk RTi A3 with a Yamaha RX-S600 which has 55 watts per channel at 8 ohms. I have no complaints
[ Bill  Jun 21, 2016 ]
Q
what size sub woofer recommend with rti a3 ?
[ Randy  Nov 24, 2013 ]
1 answer
A
This will depend largely on the room and system the speakers will be used in. Contact an Advisor by phone or chat for help choosing the best components for your system.
[ Jeff  Nov 24, 2013 ]  Staff
Q
Would these be ok in a 20 X 24 GR as L and R Mains and Surrounds? along with The CSi A4 center and 10" SUB.
[ Michael  Feb 20, 2020 ]
2 answers
A
For that large of a room, they would be just fine for rear speakers, but not front left and right mains. I actually do use mine for front left and right mains, but my room is much smaller than yours.
[ John W.  Feb 20, 2020 ]
A
No get towers for mains for a room that lg
[ Mark  Feb 20, 2020 ]
Q
RTi A3 vs S20, anyone have an opinion? Seems similarly priced.
[ Carol  Aug 01, 2018 ]
1 answer
A
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.
[ Krissy  Aug 06, 2018 ]  Staff
Q
Can these speakers be positioned on the side rather stand up straight?
[ Charlie  Apr 15, 2018 ]
10 answers
A
The sides of these speakers are cu4ved so, no, they can't be used on their sides. However 5hey are great sounding speakers and they look great too.
[ G. Scott  Apr 22, 2018 ]
A
No, if you look from the top down onto the speakers they are somewhat tear-drop shaped and would rock instead of laying flat.
[ Michel  Apr 16, 2018 ]
A
I would not; they are curved on the sides. I would presume also that sound dispersion (radiation pattern) is designed for vertical orientation. Side positioning would not be harmful in my estimation however.
[ HARRY D.  Apr 15, 2018 ]
A
CHARLIE,YOU CAN PROBABLY POSITION THEM ANY WAY YOU WOULD WANT TO, I USE MINE AS HEIGHT SPEAKERS AND THEY SOUND GREAT. I WOULD BUY THEM AGAIN,GOOD LUCK.
[ Anthony T Pizzuto  Apr 15, 2018 ]
A
Well you could, nothing preventing it. But it would look funny as the overall shape is quite rounded toward the back.
[ Steve  Apr 15, 2018 ]
A
Not ideal, curved sides make very difficult. Best sitting up, They can be mounted to wall also. Awesome sounding speakers, punch way above their price point!
[ Craig  Apr 15, 2018 ]
A
Yes, you can place them on their side (so it might fit in a shorter space?). If you do so, I would place the bottom/side on a protecting surface. Perhaps a small placemat, or piece of carpeting, would protect that beautiful cherry side from scratches.
[ RONALD E  Apr 15, 2018 ]
A
No. The sides of the speakers are slightly curved front to back, and not meant to be positioned that way.
[ ELROY  Apr 15, 2018 ]
A
No. They are wedge shaped. They do sound great!
[ Mike  Apr 15, 2018 ]
A
The speakers have curved sides so that probably won't work. They are great speakers and I would highly recommend them. I also bought the matching center channel and they all sound great.
[ MICHAEL  Apr 15, 2018 ]
Q
Can these speakers be positioned on the side rather stand up straight?
[ Charlie  Apr 15, 2018 ]
9 answers
A
First, these speakers are amazing. They have the best sound of any speakers that I have purchased in the last 35 years. I just took a good look at the speakers. The simple answer to the question is "No". Here's why: the speakers are curved from from to back. The speakers curve outwards from the front grille, then the curve continues around to the back of the speaker. (like the hull of a ship) That said, if someone were creative, he/she could design a custom mounting support system so that the speaker could be positioned on its side. Hope that this info helps. Rob C.
[ ROBERT T  Apr 16, 2018 ]
A
Mine are straight up but yes, I believe they can positioned on the side. Crutchfield, would you confirm?
[ Rafael A.  Apr 16, 2018 ]
A
No
[ Jerome  Apr 15, 2018 ]
A
While I have mine standing, I don't see any reason they can't be laid sideways. They're pretty great.
[ JEFFREY  Apr 15, 2018 ]
A
There is no provision for mounting on it's side but you can probably rig something with a little creativity.
[ KELLEY  Apr 15, 2018 ]
A
Charlie - The RTi's have curved side panels. If you were to place them in a horizontal position, they may rock a little and, therefore, may be a little difficult to maintain a consistent position. With that said, I love these speakers. They are beautiful and sound fantastic.
[ Mark  Apr 15, 2018 ]
A
I think you could, I have mine standing up. Just have to be careful with the curved sides.
[ Brad  Apr 15, 2018 ]
A
Theyre rounded on the sides so not unless you put something under them to stabilize them and absorb the vibration.
[ Ben  Apr 15, 2018 ]
A
No, because the sides are curved. Great speaker though!
[ RONALD D  Apr 15, 2018 ]
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