Polk Audio RTiA1 High Performance Bookshelf Loudspeakers With 5.25" Driver - Pair

Model: AM1175 UPC: 747192118372 Item: 70


Regular Price: $324.99

Save: $135.99 (42%)

Color: Black - In Stock

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754 Route 309 (Bethlehem Pike) Montgomeryville, PA 18936
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38 Greenfield Avenue, Ardmore, PA 19003
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Product Information

Beautiful Performance

The RTiA1 looks and sounds simply phenomenal. Ideal for both home theater and music systems, this compact bookshelf speaker combines a 5.25” Dynamic Balance midbass driver with a 1” Dynamic Balance dome tweeter to provide solid performance and elegant styling in a convenient size.


  • Classic Polk Audio sound quality in a compact bookshelf speaker
  • Custom butyl rubber surrounds and anti-diffraction grilles produce a life-time of reliable sound
  • Polished hardwood veneer cabinet finish

Dynamic Balance

Proprietary Polk Audio technology eliminates distortion-causing driver and system resonances, so all you hear is high-quality sound.

PowerPort Plus

Patented bass venting design smoothly transitions air flow, eliminating turbulence and distortion for deeper, more efficient bass impact.

Cascade Tapered Crossover

Innovative crossover eliminates comb filtering and beaming for higher-quality audio and a more expansive sound-stage.


Patented Acoustic Resonance Control technology suppresses distortion-causing cabinet resonance to ensure clear and natural sound.

Klippel Motor Optimization

Laser measurement technology ensures a smooth excursion path at both ends of the volume spectrum for uniform performance at all volumes.


Compatible with the entire Polk Audio RTi Series for seamless blending from speaker to speaker in multi-channel systems.



  • Dimensions (W x H x D): 7.38" x 12" x 11.5"
  • Weight: 12 lbs.
  • Mid-high array driver complement: (1) 5.25" diameter mid/woofer, (1) 1" diameter tweeter
  • Total frequency response: 50Hz - 27kHz
  • Sensitivity (1 watt @ 1 meter): 89dB
  • Lower and upper -3dB limits: 60Hz - 26kHz
  • Tweeter/midrange crossover frequency: 1.9Hz
  • Recommended amplifier power per channel: 20 watts - 125 watts


What's in the Box

What's in the Box:

  • RTiA1 High Performance Bookshelf Loudspeakers With 5.25" Driver - Pair


Customer Reviews for Polk Audio RTiA1 High Performance Bookshelf Loudspeakers With 5.25" Driver - Pair

4.9 / 5.0
38 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Excellent sound. Now I just need the stands
September 26, 2020
1 month ago
Rti A1's
have had these for a year now and I thought I'd say they are excellent...the sound is crisp and clear..bass is weak but that is what subs are for...appearance is pleasing to the eye. Now they are 40% off..great deal...$200 for a pair!! Using these as surround back speakers...produces a immersive sound field!
November 25, 2018
Originally posted at
Polk Audio
Beautiful all around
Purchased on sale for my living room hifi setup. After listening for a month - I can say that it meets all of my expectations for a small bookshelf. Its front ported so that bookshelf itself is not reverberating. The highs and bass is good enough for my needs. I'm using an entry level NAD to power theses speakers and the sound is pure bliss. The aesthetics with cherry color is beautiful. I'm glad I went with these and did not spent several times more.
Just make sure you use a good clean amp to go with these.
August 20, 2017
Originally posted at
Polk Audio
Unbelievable Sound at an Unbelievable Price
I bought these speakers about 5 months ago, and I am truly amazed at how musical they are each and every time I play them. The clarity and beautiful upper and mid-range frequencies allow the listener to hear all the little nuances in a song that only a high quality speaker can deliver. To my ears, they outperform my KEF Q100s, my Paradigm Min Monitors, v7, and my Axiom M3s, v4. I have already gifted the Axioms to my ex-wife and soon will be gifting the KEFs to my daughter and her new husband. I want to emphasize that all of these brands are good speakers with their own unique signature sound, but I have found the Polk Rtia1 speakers to be my favorite. I know that good sound can be subjective to a degree, but I believe that the engineers at Polk have truly hit the "sweet spot" with these speakers and that these speakers would appeal to the majority of listeners. Maybe, bass heads would prefer deeper base, but then, that is the case with most bookshelf speakers. Thank you, Polk, for making a quality product at an affordable price!
October 28, 2016
Originally posted at
Polk Audio
Mind Blowing Speakers
I wish I could give these speakers 10 stars; that is how impressed I am with them. I have owned a few so-called good bookshelf speakers including the Elac B5's, Pioneer BS-22's, and Cerwin-Vega. These are the best by far, especially when you consider the price.

The B5's were over-hyped and the Pioneers are better for home theater applications than they are for music so I kept them for that purpose. But the Polk Audio RTi A1's are stuck with me for life! Plus, they are so sexy!

I have never, ever heard a speaker with a 5.25 inch woofer that performs with the clarity, balance, and controlled bass that these have, and I have had a lot of speaker systems in my time -- big and small. These are mind-blowing "musical instruments" that are posing as speakers. I am in the process of ordering the RTi A3's even as I write this review, and I am going to use my Pioneer CS-R790-K floor speakers as stands for these babies.
September 9, 2016
Originally posted at
Polk Audio
Great Speakers
A couple of weeks ago i ordered this spekears as i red too many good reviews about it. They really sound cool with a Denon PMA 720, very detail bass, fantastic mid and high. And their beautyfull too. Good job Polk ! Greetings from Italy.
March 23, 2016
Originally posted at
Polk Audio
Best money I ever spent
I can't say enough good things about this speaker, which I've now had for three years. I've got a small to medium-sized listening room. They're sitting a few feet from the wall and I'm 8-10 feet back from them, with the dome at ear level. I bi-amp them, which they do benefit from even if you have plenty of amplification at your disposal. The crossover frequency between these and my sub-woofer is 75 Hz, which sounds low, but I find that anything above that detracts from the wonderful soundstage these can create.
They do everything justice, truly everything. SACD's, good chrome tapes, vinyl. Classical, rock, acoustic, alternative, especially well-recorded jazz.

Some things to be aware of:
-They aren't "bookshelf" speakers, unless you have big bookshelves.
-If you have big bookshelves, still just put them on stands because they need room to breathe. Putting them closer to the wall will exaggerate the bass.
-Definitely pair them with a sub. As with most small, ported cabinets, the very low end of its response range is imprecise.
-If you primarily listen to music recorded in stereo, put the sub-woofer in the center of the speakers, not on the side. The lowest frequencies that this speaker can faithfully reproduce are not quite low enough to entirely lose their directional nature, so by putting the sub in the center (where most engineers put their low content anyhow) you will have a relatively seamless and at times inaudible transition between the two.
-I wouldn't call them neutral. The mid-bass is slightly exaggerated, as are presence and sibilance. That said, this is typical of most consumer-level speakers, and in this model it is done with great taste.
-You'll know when you're listening to poorly-engineered music, which isn't a feeling everyone is used to.

A word about my background:
Lots of FOH and monitor mixing, theater tech, instrumental performance, and a bit of recording thrown in there. Even spending most of my time around professional equipment, I can come home and enjoy listening to these. Can I tell a difference? Of course. They're not a $10,000 pair of monitors. But that isn't their intention.

You'll love them. Just take the time to feed them properly, bi-amp them, set them in the right location, and set the crossover properly. That's half the battle; the speakers do the rest of the work.
December 7, 2015
Originally posted at
Polk Audio
The best bookshelf speakers I ever owned
The pure sound at all sound levels and frequencies was incredible. I owned 4 of these for five years and had tobsellnthem.

Imintendbto hut four more of the RTaa1's as soon as possible.
May 23, 2015
Originally posted at
Polk Audio
best little speaker for the money!
I bought these about 6 mo. ago to replace a pair of Polk RTi4's that I use as my rear speakers. I bought these to pair with the RTiA7's in the front. I thought the i4's were good, but these blow those away. They are relatively similar in features but my system just seemed to come alive when I hooked up the A1's. Couldn't be happier and they fact that I bought them for 1/2 price just made it sweeter! Powering the system is Onkyo TX NR 808 (Bi-amped, center is Polk CSi4, with a Polk PSW 505 Sub. Anyone looking to upgrade or start a system would be hard pressed to find better sounding and looking equipment than Polk. I really appreciate how good my old vinyl collection sounds now!
May 5, 2015
Originally posted at
Polk Audio
I have been into audio for 25+ years. I have built many custom systems, for both home and automobile. I am not biased to any particular brand, because every brand has their own unique sound. However, I can say that I have heard many top brands, and these speakers will spray sound with the best of them! Imaging and soundstage are both phenominal. They produce crystal clear highs, and a punchy bottom end. Vocals are rich and very accurate. If you take pride in your system and use top quality speaker wire and components and want fantastic sounding speakers, look no further. I have the black set and they are sweet! Price=10, Looks/Build=10, Sound=9 right out of the box, without break-in!
March 11, 2015
Originally posted at
Polk Audio


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