Polk Audio RTi A5

Floor-standing speaker (Black)

Item #: 107RTIA5B

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25 Reviews

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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.

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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

    Floor-standing speakers — still standing tall

    Sure, floor-standing tower speakers buck the industry trend toward smaller, visually inconspicuous speakers, but they're hard to beat if great sound is your primary goal. Tower speakers produce powerful sound with excellent bass, making them a great choice for serious music lovers and for folks who want high-impact home theater.

    Hands-on research

    What's in the box?

    Download owner's manual

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

    Features and Specs

    Enclosure Bass Reflex
    Finish Real wood veneer
    Color Black
    Tweeter Dome
    Tweeter Size (inches) 1
    Midrange Size (inches) ---
    Woofer Size (inches) 6.5
    Woofer Composition Polymer composite
    Woofer Surround Butyl Rubber
    Built-in Powered Sub 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
    Amplifier Power ---
    Height (inches) 39-5/8
    Width (inches) 10-9/16
    Depth (inches) 15-7/8
    Weight 40 lbs

    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".


    Our Product Research Team

    At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

    Polk Audio RTi A5 Reviews

    Average Customer Review:

    25 reviews
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    Polk Rtia5

    Written By David, Crystal Lake, Il. on Friday, September 19, 2014

    These speakers are physically beautiful, in the cherrywood. Their sound is smooth and coherent. The only complaint I had was that I wanted them to sound way better than my old Polk Rti4 bookshelf speakers, and they only sound a little better(in the bass). But that says more about the quality of the Rti4's than it does about the Rtia5's. The main adjective for these speakers is: SMOOTH.

    Pros: Physically beautiful and excellent smooth sound.

    Cons: none

    Really like them

    Written By Anonymous, Minneapolis, MN on Wednesday, July 16, 2014

    Crutchfield Customer Review (What's this?)

    Replaced a set of JBL Northridge tower speakers. Paired with: 12+ year old Onkyo home theatre receiver. Polk ATI3 as satellite speakers. JBL Northridge 80w sub. Very clear mids and highs. The JBL sub provides the deep base and these speakers provide a clear base that allows me to turn down my sub from the setting I had with the d JBL towers. Cabinets are very nice and compliment the cherry floors I have in my house. I would buy again.

    Pros: Clarity of high and mid range. Cabinets are beautiful.

    Cons: Needs a subwoofer.

    What bass?

    Written By Mike, Fayetteville NC on Thursday, July 10, 2014

    For the price I thought great bass, well I like Polk but hardly any bass

    Pros: nice looking very loud

    Cons: no bass

    Was expecting better.

    Written By Hank, Chicago, IL on Thursday, April 10, 2014

    Crutchfield Customer Review (What's this?)

    Like the title, I was expecting more. A Polk loyalist I was somewhat disappoineted with the overall sound. These were to replace my Polk RM5000 system which consists of 2 front satelite speakers and a non-powered sub-woofer. This system is over 20 years old and is driven by the Denon AVR-X4000. The RTi A5s just didnt offer the sound I expected. Not any noticabel difference from the old system. They did not sound clear at all. Absolutely no punch unless you really turned up the volume. I did make numerous adjustmenst, but to no avail. My listening room is carpeted with some large couches so that may be part of it but my audio adjustments should have made some improvement. They did sound a bit better after about 40 days of break-in, but sent them back for a set of Klipsch speakers which sounded 100% better right out of the box. I will give that review later.

    Pros: Nice cabinet and Crutchfield advisors.

    Cons: Muddy sound. Requires alot of power to drive these speakers.

    RTiA5 review

    Written By Joe, Marysville OH on Sunday, March 02, 2014

    Crutchfield Customer Review (What's this?)

    My system consists of a Denon X-4000 receiver, Polk RTiA5's up front, Polk RTiA1's for surrounds, Polk 660 pro sub & a def tech CS8040HD center (Polk CSiA4 was too big for tv stand cabinet). The A5's absolutely shine in multi channel use. I've tested with all kinds of movies on blue-ray, even movies on cable sound great. I was originally gonna get the A7's, but after some debating I got the A5's & I must say I'm glad I went with the A5's. They fill the living room (21X15) with plenty of sound & are actually sounding better after two weeks of break in. They do produce a fair amount of bass for their size, but in order to really reach down low, you'll need a sub, especially if you want that extra umph for movies.

    On a side note... If your gonna spend the money on any of the RTiA line of speakers do yourself a favor & buy a good quality HT receiver. The A5's sound awesome powered by the Denon. I am now a believer, & will never buy a consumer level ($400-$500) receiver from here on out. Before my A5's arrived I hooked up my 15yr old Cerwin Vega LS-12's to the Denon & Wow! What a difference.

    Anyway...yes the A5's are very nice speakers. They sound great & look great too. Def recommend them.

    Polk Audio RTiA5 Speakers

    Written By RandyW, Memphis, TN on Wednesday, January 01, 2014

    Crutchfield Customer Review (What's this?)

    just received one day ago. Have connected to a Yamaha RN-500 receiver (80 Watts/channel). Initial impression is very good. My biggest concern was if the combination setup (receiver/speaker selection) would produce enough bass for music (sans subwoofer). I am happy to report with the bass turned up on the receiver they satisfy in this regards. Great Sound and the appearance is also a plus.

    Pros: Great Sound Enough bass with the right receiver (sans subwoofer) Attractive appearance Good Value - price/performance

    Cons: None identified at this time.

    Polk Audio RTi A5

    Written By Anonymous, South Lake Tahoe, CA on Thursday, December 26, 2013

    Crutchfield Customer Review (What's this?)

    These sound great! I am running a pair of them with a Denon AVRX-1000, and they are great!! I may want to push more power to them though with a better receiver. Their loud, and sound great with music, and movies.

    Pros: Beautiful dark cherry color (the picture shows them in light cherry, but they are actually dark)

    Cons: None Yet

    Incredible sound!

    Written By LDeCarlo, Seattle, WA on Sunday, December 22, 2013

    Crutchfield Customer Review (What's this?)

    The moment I attached these speakers and played a cello CD, I was hooked. Beautiful deep full sound. Very happy with this purchase. Highly recommend them!


    Written By Jen, Alpine Texas on Thursday, December 05, 2013

    Crutchfield Customer Review (What's this?)

    Great sound and even though they are large they are truly nice looking and blend in with any décor. I was worried they would be too big but because they are narrow and black they don't stand out.

    Review of Polk RTi A5

    Written By Doug, Batavia, NY on Friday, August 16, 2013

    Crutchfield Customer Review (What's this?)

    I believe my break in period is over. I purchased a pair of these fine speakers a few weeks back and am very pleased with their sound. The mid range is warm and detailed with nuances of sound coming from what seems to be distant back stage effects. An extremely clean top end in the upper register without it being overdone or sizzle. No boomy base .... nice and tight .... True sound and for and at their price point I could not be happier. As usual Crutchfield delivered on time as promised. I am definitely a Crutchfield satisfied customer. Now, my speaker system is complete with a full 7.1 system using front height speakers all Polk !!! The sound is amazing !!! Thanks Polk and Crutchfield !!!!

    Pleasantly Suprised

    Written By Dave, Roseville, CA. on Sunday, August 04, 2013

    Crutchfield Customer Review (What's this?)

    I was apprehsive about buying the Polk Audio RTi A5 Floor standing speaker, after I set up my Stereo gear I was quite pleasantly surprised by how good the speakers sounded. The speaker's present a good stage presence, base is tight and I was pushing the speakers with a Yamaha RS700 @ 100 Watts per channel. I would say if someone wanted to push the speaker at 200 watts (The speaker's are rated at 250 watts) with a Yamaha RS700 to buy a power amp and hold your ears. I found the system and speakers to play at a range much louder than my ears could take.

    Pros: Have great sound reproduction, easy to set up. I highly recommend this speaker.

    Cons: None to date.

    RT I speaker

    Written By Prince S, on Sunday, July 21, 2013

    Crutchfield Customer Review (What's this?)

    Very Nice sounding speaker better when they get broken in.

    Pros: Nice build ed speaker Great sound ok price look nice with your furniture.

    Cons: None yet.

    polk RTi a5

    Written By MeBe, Everett, WA on Monday, July 08, 2013

    Crutchfield Customer Review (What's this?)

    Absolutely love these speakers, besides being gorgeous their sound is nothing short of beautiful. They are so good looking that I actually rearranged my furniture to showcase, they outclass my other furniture!

    Great Speakers!

    Written By Geoff C., Pennsylvania on Monday, July 01, 2013

    Crutchfield Customer Review (What's this?)

    Fantastic sound. I wanted bass, and I got bass. Almost no need for a sub-woofer. The Crutchfield tech rep who assisted me in selecting speakers to match my components and listening needs was right on the money. If you want well priced, high end speakers, these are the ones. High tones are very well reproduced in addition to the lows. No matter what type of music you listen to, or movies you watch, I do not think you will be disappointed with the RT1 A5's. A great match to the Sony STR-DN1030,...the RTi A5's reproduce its sounds extremely well.

    Pros: sound, quality, craftsmanship, quick shipping/arrival (2 days), easy set-up, the free Atrium 4 speakers were a nice bonus

    Cons: If I could have only gotten the speakers for free,...but still worth the price.

    Very satisfied

    Written By Derek, California on Thursday, May 02, 2013

    Crutchfield Customer Review (What's this?)

    Awesome speakers. Great sound and style. Very pleased.

    Pros: Look great, sound great.

    Cons: None yet.

    Polk Audio RTi A5

    Written By Steve, Wareham, MA on Saturday, January 05, 2013

    Crutchfield Customer Review (What's this?)

    Big beautiful speakers that sound great, however a bit of an overkill for our home theater application.

    Pros: Great speakers

    Cons: None

    Nice Speakers!

    Written By DanC, Georgia on Friday, March 09, 2012

    Crutchfield Customer Review (What's this?)

    I was concerned about the quality when I ordered, as you cannot truely get a feel for that from the picture, but once they were out of the box I was very impressed with the quality of the RTI A5. I really like these speakers for listening to music and they do an excellent job as my front pair in a 7- speaker setup in a 14x20 room.

    Pros: Quality of Speaker Cabinet and Speaker Sound

    Cons: None

    Good sound beautiful cabinet

    Written By Jamie, Winfield,WV on Friday, March 02, 2012

    Crutchfield Customer Review (What's this?)

    Very good sound quality for the price, I am more impressed with the looks of the cabinet, they look more likes piece of high quality furniture than a speaker. I am still leaning the range of these speakers think they do well with the mid tones and are a little weak at highs but still worth the price. The shipping company that crutchfield uses was terriable it took them almost 2 weeks to get them to me. I called customer service and they told me they had to be shipped by carrier other than ups because of size. The grilles are the cheapest part of a other wise terrific speaker

    Pros: Great looking cherry wood good sounding and a very good value got a free sub woofer

    Cons: Flimsey grills and the delivery company that was used

    Polk Audio RTi A5

    Written By Anonymous, Bronx,NY. on Tuesday, February 14, 2012

    Crutchfield Customer Review (What's this?)

    Excellent Speaker, Great Sound.

    Polk Rti speakers

    Written By KSsunflower, Montezuma, Ks on Thursday, February 02, 2012

    Crutchfield Customer Review (What's this?)

    upgraded from speakers from the seventies. What amazing speakers. Hearing things I never heard! Nice lows and highs, but I bot the PS125 powered sub. That was icing on the cake. Happy gal I am!!

    Pros: Nice cherry wood.

    Cons: The subwoofer cherry wood don't match the deep cherry of the speakers. But its not a big deal as the sub isn't where you can see it.

    Under Rated

    Written By Charles, Tinley Park, IL on Wednesday, January 11, 2012

    This is a great product, I was disappointed to see so few reviews during my research. I originally had the tsi series in mind. If your like me and spend hours researching your purchase, enough to know more than the so called "experts" at some audio vendors, this is your sign. When it comes down to it, these speakers are simply amazing. A step up from the Tsi series they look beautiful, constructed well and look great with any furniture (made the girl friend happy). The A5 series is worth the extra money for higher quality and better highs, bigger volume cabinets which give them incredible bass. These shake the apartment enough to annoy the neighbors, let alone adding a sub too! My setup though is packed into a small 760sq ft apt, overkill but I went for the possibility for upgrades.

    Pair these with the Csi A6 Center and movies come alive.

    I have Rti4's in the rear, planned to move these to my 7.1 setup eventually with the Rti A9s in the front.

    Powered by the Denon 2312 these far surpassed my expectations as an entry level home audio enthusiast.

    Pros: Amazing Bass Value / Quality

    Cons: Price maybe? They are still worth every bit of the money.


    Written By MatthewG, Indiana on Monday, December 26, 2011

    Crutchfield Customer Review (What's this?)

    I was planning on buying the speakers that ran a little less, but decided on these. Kind of concerned since there are few reviews for them, hoping I wouldn't regret not getting the A7 speakers. These are wonderful! We have a smaller house, powering them with a Denon 1912. I could't be more pleased with them. Polk has always made great speakers and these should last us a very long time. Huge improvement over our XBR5's speakers. We hear details we never heard before in movies. A winner all the way!

    Pros: Nice size speaker, crisp excellent sound, nice bass, great construction

    Polk RTi Series Speakers

    Written By OliverK, Zelienople, PA on Thursday, July 14, 2011

    Crutchfield Customer Review (What's this?)

    I was impressed with the speakers overall. Excellent craftsmanship. However, one of the side supports came without thread for the carpet spike. Polk has to improve their QA department. I called Polk directly and they said that they would mail me a replacement. The speakers have an overall excellent sound quality, nice and crisp, and I found no need for a sub-woofer, as so many people say that you need one, because they are bass-reflex. The sound quality does improve as the speakers break-in.

    2nd WOW

    Written By fourtango, NJ on Thursday, January 28, 2010

    Crutchfield Customer Review (What's this?)

    These speakers really beat my expectations! I have just these and a psw125 sub (for now) coming from a onkyo TSX607 and the sound is great! The finish on the RTi A5 is second to none. I just watched Hurt Locker and Saving Private Ryan and could not believe my ears. The gun battles were so realistic. You will not be disappointed if you get these.


    Written By Cory, MT on Monday, January 04, 2010

    Crutchfield Customer Review (What's this?)

    Just arrived today...awesome! They came before the sub and I cannot believe the bass. The clarity is great, Cherry veneer is beautiful. Very happy with these speakers.

    Get everything you’ll need to enjoy your new Polk Audio RTi A5

    You'll need speaker wire to connect your speakers to your amp or receiver. No wire is included with this speaker.
    Add connectors to your bulk speaker wire for a neater, easier, and more reliable installation.
    Cut your speaker wire to the exact length you need.
    Original Monster Cable

    Original Monster Cable

    With gold pin connectors (15-foot pair)

    Item #: 119OMC1515


    Add to Cart
    Monster Cable SuperFlat™ Mini

    Monster Cable SuperFlat™ Mini

    Decor-friendly speaker cable with gold pin connectors (50-foot spool)

    Item #: 119SFLM50


    Add to Cart
    AudioQuest Type 4

    AudioQuest Type 4

    Speaker cables with pre-attached banana connectors (10-foot pair)

    Item #: 703T410BFS


    Add to Cart
    AudioQuest Rocket 33

    AudioQuest Rocket 33

    Bi-wire speaker cables with pre-attached banana plugs (10-foot pair)

    Item #: 703R33BW10


    Add to Cart
    Monster Twist-on Mini Banana Connectors

    Monster Twist-on Mini Banana Connectors

    2 pair, 16-gauge

    Item #: 119MTTMH2


    Add to Cart
    Monster Twist-on Banana Connectors

    Monster Twist-on Banana Connectors

    2 pair, 12-gauge

    Item #: 119MTTRH2


    Add to Cart
    AudioQuest X2 Speaker Cable

    AudioQuest X2 Speaker Cable

    14-gauge cable, connectors optional (30 feet, Gray)

    Item #: 703X230G


    Add to Cart
    AudioQuest G2 Speaker Cable

    AudioQuest G2 Speaker Cable

    16-gauge cable, connectors optional (30 feet, Gray)

    Item #: 703G230G


    Add to Cart
    Monster XPHP™ MKII

    Monster XPHP™ MKII

    Speaker cable with clear jacket (100 feet)

    Item #: 119XPHP100


    Add to Cart
    Monster XP®

    Monster XP®

    Speaker cable with clear jacket, connectors optional (100 feet)

    Item #: 119XPMS1H


    Add to Cart
    Monster XP® Navajo White MkII

    Monster XP® Navajo White MkII

    Speaker cable (50 feet)

    Item #: 119XPNWS50


    Add to Cart
    Arista 16-Gauge Speaker Wire

    Arista 16-Gauge Speaker Wire

    50 feet

    Item #: 043185882


    Add to Cart

    Looking for more? Check out the next model in this lineup.

    Polk Audio RTiA7 Black Each

    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