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Polk Audio RC55i

In-wall speakers

Item # 107RC55I

Our customers have been using Polk Audio's RC55i in-wall speakers for movies and music for years — and their...

Our customers have been using Polk Audio's RC55i in-wall speakers for movies and music for years — and their...

Item # 107RC55I

In stock
$129.99 pair

About the Polk Audio RC55i

Good things come in small packages

Our customers have been using Polk Audio's RC55i in-wall speakers for movies and music for years — and their glowing reviews are telling. These compact speakers provide clear, accurate sound, and are an ideal choice for small- to medium-sized rooms. Want to make them totally disappear? Paintable grilles let you easily match them to your décor.

Good things come in small packages

Our customers have been using Polk Audio's RC55i in-wall speakers for movies and music for years — and their glowing reviews are telling. These compact speakers provide clear, accurate sound, and are an ideal choice for small- to medium-sized rooms. Want to make them totally disappear? Paintable grilles let you easily match them to your décor.

Versatile entertainment options

The value-packed RC55is work great as the left and right front or surround channels of an in-wall home theater. You can also use a pair of these with your favorite amp for a music system with minimum visual clutter. Team them up with a powered subwoofer for a rockin' 2.1 system. 

DIY installation 

Here's a tip I learned when installing my Polk in-wall speakers. If you're placing the RC55is six feet or higher on your wall, turn them upside down so that the tweeter is at the bottom. Then, aim the tweeter towards your seat. You'll get better high-frequency detail since the tweeter is closer to ear level. 

If this is a do-it-yourself installation, check out our guide to installing in-ceiling speakers, along with our selection of in-wall speaker wire. Optional pre-construction brackets are recommended for new construction. Free lifetime technical support is provided with every Crutchfield purchase.


Product highlights:

  • ideal for stereo music or the left and right front or surround channels of a home theater
  • 5-1/4" woofer and 3/4" swivel-mount tweeter
  • frequency response: 70-20,000 Hz
  • impedance: 8 ohms
  • sensitivity: 89 dB
  • recommended amplification: 20 to 100 watts
  • cutout dimensions: 6-3/16"W x 9-5/8"H
  • mounting depth: 2-1/16"
  • includes paintable white matte grilles
  • warranty: lifetime
  • Our 60-day money-back guarantee
  • MFR # AW0055-A

What's in the box:

  • 2 White in-wall speakers
  • 2 White grilles
  • 1 Cardboard Mounting Template
  • Owner's Manual
  • Online registration sheet
  • Product Registration Card

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Polk Audio RC55i reviews

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Crutchfield response

<< >>

More details on the Polk Audio RC55i

Stacey B.

Features & specs

Quantity in Package Pair
Tweeter Hard-Dome
Aimable Tweeter No
Woofer Composition Polypropylene
Woofer Surround Rubber
Moisture-resistant Yes
Connector Type Spring clip
Bi-Amp Inputs No
Built-in Back-box No
Tweeter Size 0.75
Midrange Size
Woofer Size 5.25
Cutout Size 6.1875 x 9.625
Power Range (Watts) 20-100
Sensitivity 89 dB
Impedance (Ohms) 8
Frequency Response 70-20kHz
Parts Warranty Lifetime
Labor Warranty Lifetime
The Polk Audio RC55i replaces these items:

Product Research


Dynamic Balance Technology: Dynamic Balance drivers are used for wide, smooth response and low distortion.

Woofers: Each speaker features a 5-1/4" Dynamic Balance, mineral-filled polypropylene woofer for clean midrange and deep, accurate bass. For a smoother response and improved durability, each woofer uses a rubber surround.

Tweeters: Each speaker uses a 3/4" Dynamic Balance, metalized soft dome tweeter in a ball-and-socket swivel mount. The aimable tweeters give you direct high-frequency control, resulting in excellent imaging even for off-axis listening positions.

Infinite Baffle Tuning: Infinite Baffle Tuning uses the virtual enclosure of in-wall space for superior bass response.

Moisture-resistant: Durable, moisture-resistant materials allow you to install the speakers in bathrooms, kitchens, even under the eaves of an enclosed porch. (The speaker is not recommended for exposed outdoor use.)

Installation: Each speaker requires a cutout 6.1875" wide and 9.625" high with a mounting depth of 2.012". Once the holes are cut, each speaker can be dropped in and the Rotating Cams can be tightened, allowing you to secure each speaker to the drywall without any extra assembly (the Rotating Cams protrude out 0.625" from the cutout opening). If you will not be mounting these speakers in drywall, make sure the wall or ceiling material can safely support the weight of the speakers before installation; each speaker weighs approximately 3.5 pounds.

Paintable: The grille and flange can be painted, allowing these speakers to match any decor.

Frequency Response:

  • Overall: 67 Hz-20 kHz
  • -3 dB Limit: 70 Hz-20 kHz

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Customer Q&A

Crutchfield asked: Why did you buy this?
Good price and will fit between framing in desired location. [ Allan  May 24, 2020 ]
I have Polk speakers in my basement set-up so I know they are a good quality and value. I also wanted to get the speakers off of the floor so in-wall made the most sense to me. [ John  May 11, 2020 ]
Performace and cost for the outdoor location (Lanai) [ Vicki Shand  Oct 11, 2019 ]
reputation [ Gary  Feb 04, 2019 ]
rc85i sound great but need smaller [ Chris  Nov 17, 2018 ]
needed speakers [ robin  Oct 22, 2018 ]
I needed a speaker with a shallow depth and I happen to find the polk audio rc55i with a depth of 21/16 [ John  Sep 17, 2018 ]
Polk is always a good choice. Awesome speakers. [ Charles  Sep 01, 2018 ]
I have one pair now and they are amazing great sound and easy to install well worth the money. Great all around sounding speakers....:) [ Garvin  Aug 08, 2018 ]
Recommended by David/Customer Support Agent [ Nicholas  Dec 07, 2017 ]
This is to replace two ceiling speakers for my surround sound. Polk Audio RC55i sound amazing in this configuration. [ TERI  Dec 01, 2017 ]
Replacement of 20 year old in ceiling polk audio speakers we have been very happy with due to a water damage event. Erin was very helpful with the selection. [ Ken  Nov 12, 2017 ]
Consistently great reviews. [ Jeff  Nov 09, 2017 ]
I choose these for their power to price ratio and because they fit the needs of my new home build. [ Winston  Jul 04, 2017 ]
Polk is a high quality brand yet also delivers good value. I purchased these for in wall surround speakers in a 5.1 set up as hanging satellite speakers on my rear wall was going to be obtrusive [ JOHN J  Jun 05, 2017 ]
best quality at lowest price [ Bruce  Apr 11, 2017 ]
I like Polk.. I needed an in wall smaller then the RC80 to fit in a narrow span between studs on one wall in my living room. I will use the RC80's in my theater for Atmos overheads. [ Cristine Hall  Feb 01, 2017 ]
Ratings. [ Phill  Jan 30, 2017 ]
Good reviews for rear surround speakers for in the wall [ Bill  Jan 22, 2017 ]
Polk quality and value [ Ryan  Oct 27, 2016 ]
Would have gotten the 85s but planned on selling the house, so saved a couple bucks. [ Eric  Oct 06, 2016 ]
the best [ RICHARD C  Sep 05, 2016 ]
fits my ceiling [ john thomas (Ch  Aug 19, 2016 ]
great price [ John  Aug 01, 2016 ]
Happy with the Polk audio brand. [ Paul  Jul 20, 2016 ]
replacement of comparable speakers [ Albert  Jun 17, 2016 ]
Recommendation from Advisor Ryan. Ryan's Bio: [ Michael  Jun 03, 2016 ]
I wanted a small footprint speaker with quality sound. This fit both qualifications! [ Michael  May 18, 2016 ]
House is prewired for in wall speakers. Liked the video I saw on Crutchfield and they were the right price. [ Nikki  May 16, 2016 ]
price and reviews [ MATTHEW J  Apr 07, 2016 ]
I have some Polk speakers in my house already and these rock! [ ROBERT J  Mar 16, 2016 ]
In wall, good performance, great value. [ Eric  Jan 18, 2016 ]
part of my 9.1.2 setup, all Polk [ Jeffrey  Jan 10, 2016 ]
Have had great experience with Polk speakers and these had a very slim profile at 2 3/8" for apartment walls with thin studs. [ Stephan  Dec 23, 2015 ]

8 questions already asked

Do these speakers require a separate electrical outlet?
[ V  Aug 27, 2019 ]
2 answers
If you ask this question you don't deserve an answer
[ Brendan  Aug 28, 2019 ]
No they do not
[ Dean  Aug 27, 2019 ]
is the front cover magnetic or do you have to screw it in the wall?
[ sierra  Aug 14, 2018 ]
4 answers
The front grille almost snaps in. The speaker gets cut into the wall and has wings that holds it in place.
[ WILLIAM S  Aug 17, 2018 ]
The grill is pushed into place, and the friction between the grill and speaker holds the grill in place.
[ JOHN J  Aug 17, 2018 ]
The outside white piece that you see is attached to the main speaker assembly. Then just the grill part pops snugly into the frame. If you are wondering how they attach to the wall, first you cut the hole to match the guide that they include in the box, then they have those little clips that swing out and grab the back of the drywall and screw to tighten. They take a matter of minutes to install. Just make sure you miss the studs. These sound great. I have a couple pairs around the house.
[ chris  Aug 17, 2018 ]
snaps in
[ Michael  Aug 17, 2018 ]
I am putting a pair of these in a small shed I am converting to a game/movie room for my kids. Since I am only installing a pair where should I place them for best sound? In Ceiling or wall and both in front, back, side, or split at each end? Any help would be great.
[ Jeff  May 25, 2016 ]
2 answers
Hey Jeff, I own a set of these speakers and they sound pretty good! I currently have them as my surround (in-wall) speakers on a 5.1 setup, but if you are using them for general purpose (watching TV, music, etc.) I will put them flanking your TV in the wall and the distance between speakers should be equal to the distance between your TV and the sitting (viewing) area approx. Good luck!
[ Jose  May 25, 2016 ]
If these are the only speakers I would put them on the wall with the TV as a Front left and Front Right
[ Ryan  May 25, 2016 ]
If I install these in my ceiling, I'm concerned about whether they should have enclosures, since my attic has blown-in insulation, which would cover the back of the speakers. Thoughts?
[ Larry  Jan 26, 2015 ]
1 answer
I have the same situation. Cut some wood blocking and put plywood on top.It became a shelf speaker on the ceiling.To me it souds much better.
[ Me  Jan 27, 2015 ]
Can these speakers be installed horizontally?
[ Brian  Jan 22, 2015 ]
4 answers
Sure. I think they're designed to be installed vertically, but there's no reason other than for audio perfection that they cannot be installed horizontally.
[ RYAN J  Jan 23, 2015 ]
I installed a pair in my ceiling as rear speakers and they work well. No reason they couldnt be installed horizontally in a wall. Radiation pattern will change but probably not a big deal
[ SCOTT  Jan 23, 2015 ]
Sure. If you have enough room between the studs.
[ GREGORY C  Jan 23, 2015 ]
Yes. I have them up & down, sideways and in the ceiling.
[ WILLIAM P  Jan 23, 2015 ]
This is brand new or refurbished?
[ Luly8888  Sep 22, 2014 ]
3 answers
Mine was new as far as I can tell. Crutchfield would have to answer for anything you get from them, of course.
[ STEPHEN C  Sep 23, 2014 ]
These are new
[ KUAKA  Sep 23, 2014 ]
[ EDWARD W  Sep 23, 2014 ]
Would these be good for the middle of a 7 and 1 set up or should the go to the rear?
[ alex  Nov 27, 2013 ]
1 answer
These speakers should work well in most locations of a 7.1 system, but the best location will depend on the type of 7.1 system you are going for. Call or chat with an Advisor to discuss the set-up you are looking at, and they will be able to help determine the best speakers to fit your room and needs.
[ Jeff  Nov 27, 2013 ]  Staff

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