Polk Audio RC55i

In-wall speakers

Item #: 107RC55I

In Stock

36 Reviews

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The RCi series lets you enjoy great Polk performance without losing valuable floor space to bulky speakers. The RC55i pairs a 5-1/4" Dynamic Balance woofer with a 3/4" soft dome Dynamic Balance tweeter to deliver powerful sound that's perfect for handling music and movie soundtracks.

The swivel-mounted tweeters let you direct the high frequencies to fine-tune the best possible sound for your favorite listening positions. And Polk's Infinite Baffle Tuning takes advantage of the virtual enclosure of in-wall space for superior bass response. The R55i is voice-matched to other Polk speakers, so you can use a pair as your surround speakers in a home theater system that includes more traditional freestanding speakers for the front channels.

The rotating-cam design makes installation easy — once you've prepared the opening in your drywall and run UL-rated wiring from your receiver, you can secure this flush-mount speaker with a few turns of a screwdriver. And you can paint the white matte grilles to match any decor.

An optional in-wall bracket is recommended for installing the RC55i in a home with new construction.

Got wire?
Most speakers don't include any. Learn more about in-wall wiring at the Crutchfield Learning Center.
Shop our selection of in-wall speaker wire.

Priced per pair

Product Highlights:

  • frequency response 70-20,000 Hz (-3dB)
  • 8-ohm impedance
  • sensitivity 90 dB
  • handles up to 100 watts
  • moisture-resistant materials allow safe use in bathrooms, kitchens, saunas, and under outdoor eaves
  • paintable white matte grilles
  • cutout: 9-5/8"H x 6-3/16"W
  • mounting depth: 2-3/16"
  • lifetime warranty

Polk Audio RC55i Reviews

Average Customer Review:

36 reviews
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Polk Audio RC55i

Written By Anonymous, Guntersville, Alabama on Monday, November 23, 2015

Crutchfield Customer Review (What's this?)

Easy install and good sound.

7.2 Surround

Written By Anonymous, North Carolina on Tuesday, November 17, 2015

Crutchfield Customer Review (What's this?)

I have the (255C-RT) and in walls (RC55i's) and 2 Polk Subs (PSW 108 and 111) for a 7.2 effect. It's a great combo for the size of room I have!

Polk Audio RC55i

Written By Janza, Louisiana on Monday, September 07, 2015

Crutchfield Customer Review (What's this?)

Excellent product. Crisp and clean sound, even at loudest volume.

Pros: Clean, crisp sound

Cons: none

Great Speakers

Written By Jill G, Ohio on Friday, August 14, 2015

Crutchfield Customer Review (What's this?)

Fast shipment and great speakers for the price.

Pros: Great range.

Cons: None

Paired with Polk SurroundBar 500 CHT...

Written By JohnS, Seattle, WA on Tuesday, July 07, 2015

Crutchfield Customer Review (What's this?)

... and a sub-woofer for a room-filling, great-sounding, very unobtrusive 5.1 surround speaker system. Work great for music and TV/movies. I picked the RC55i's because I love Polk speakers, they have good specs, and the smallest form-factor I could find. Mine fit horizontally in a wood panel (not a wall) that is only 8" high and 3/4" thick!

Pros: Very good sound. Great value for the price. Small form factor. Virtually invisible. Easy install. Polk Audio.

Cons: Not a lot of bass (of course), so you'll want some good mid-range fronts and/or a sub-woofer for larger spaces.

Replacement rear channel speakers

Written By ACN, South Carolina on Sunday, April 12, 2015

Crutchfield Customer Review (What's this?)

We purchased a new couch and my wife wasn't happy with the lop-sided appearance of the PSB bookshelf speakers I was using as rear channels on wall brackets. I chose the 55's for the smallest size. Installed them yesterday. They pair very nicely with the PBS front, center, and sub. Very nice highs. Maybe not quite as much lower mid-range as the bookshelf but I wouldn't have expected as much. Haven't painted them yet but they already look way better than the PSBs on brackets.

Pros: Easy to install. Very good sound for the size and the money.

Deep Sound

Written By Truk, Mo on Sunday, January 18, 2015

Crutchfield Customer Review (What's this?)

Nice sound. t Too easy to install. Even has pictures for directions. Correct depth for 4" wall. Great speaker for the price.

Pros: Sound, installation

Cons: None.

Great wall speakers!

Written By Sondra B, Mechanicsville, VA on Sunday, January 04, 2015

Crutchfield Customer Review (What's this?)

The sound makes the movie resonant around the room. It's perfect for our theater.

Pros: Slimline and matches the wall so they don't stand out.


Written By Anonymous, Orlando, Fl on Sunday, December 14, 2014

Crutchfield Customer Review (What's this?)

Perfect for my rear surround. Very easy installation. Sound great with my Polk Audio TL3 fronts and TL3 center channel. Painting grilles to match wall color was very easy. As always, great service and tech support from Crutchfield.

Pros: Look and sound great.

Cons: None

High Quality Sound from Hidden Source

Written By Energy Guy, Point Roberts, WA on Monday, November 17, 2014

Crutchfield Customer Review (What's this?)

I bought these speakers to put high quality stereo sound into two bedrooms as part of a home renovation. I needed to remove an ancient in-wall intercom system and rather that patching the wall why not put in a couple of stereo speakers. I chose Polk because I have put in a 7.1 surround system in my theater room using 6 of the RC85i and was very pleased with the sound. The RC55i's are smaller and fit the bedroom application better while still providing excellent sound. I prefer this to the Sonus-type solution which requires big expenditure on wireless that never performs as well as a pair of wires. And besides, I'll never need to move the speakers; they're perfect where they are at ear level on the wall.

I am driving with a Topping TP20 MkII type-T audiophile digital amp. Sound quality is great on any genre I play. The clarity is amazing, particularly the ability to pick out instruments and sounds you never noticed before.

Pros: Clear, high quality sound Very pleasant listening experience Barely visible on the wall.

Cons: Thin on the low end; not for material with deep bass--get the 6.5" or 8" models for that, or a small subwoofer.

Worthier compared to price

Written By S.Joseph, McKinney on Monday, September 22, 2014

Crutchfield Customer Review (What's this?)

These speakers are great in look and performance when we compare its price. I recently bought and uses it as my surround speakers. It looks beautiful on wall and supports my Onkyo TX NR-636 in a great way!

Polk Audio RC55i

Written By Anonymous, TRUSSVILLE, AL. on Thursday, September 11, 2014

Crutchfield Customer Review (What's this?)


Great sound, easy to install

Written By JR, Orlando, FL on Wednesday, July 30, 2014

Crutchfield Customer Review (What's this?)

Great sound and value for the money; use as surround on a 5.1 setup. They sound very clear and were easy to install, paired with TSx fronts and the sound is awesome.

Pros: Great sound, easy to install.

Cons: None

Polk Audio RC55i

Written By Anonymous, San Marcos CA on Friday, July 18, 2014

Crutchfield Customer Review (What's this?)

I was happy with my product and i would buy more from you guys again

Excelling looking and sounding speakers

Written By yohann, Glenview, IL on Tuesday, July 08, 2014

Crutchfield Customer Review (What's this?)

Great set of speakers if you are looking for a great combination between sound and sleekness. Home theater sounds great and both the highs and lows come through well with these speakers.

Awesome Speakers

Written By Matt, Rochester, MI on Wednesday, March 05, 2014

Crutchfield Customer Review (What's this?)

These speakers sound great and are easy to install. I like them so much in my family room I plan on buying two more for my basement surround.

Pros: Easy to install. Work great for front and rear surround speakers.

Cons: None.


Written By IBFROG, MT. SHASTA, CA. on Sunday, February 02, 2014

Crutchfield Customer Review (What's this?)

This is the second identical set of speakers that we purchased 15 years ago for our new home. We use them as part of our surround sound speaker set. The sound is clear and strong. They are especially awesome when we are watching a big screen movie with a lot of booms, crashes and strong soundtrack music. I wouldn't hesitate to purchase these speakers again if need be. The price is right and the speakers are simple to install.


Speakers heard, not seen

Written By Jlp, Charlottesville, va on Friday, January 03, 2014

Beautiful wall speakers, easy to install, make a real difference in space saving where floor speakers had been.

Great Speakers, Easy Install

Written By Anonymous, Rochester,NY on Friday, January 03, 2014

Crutchfield Customer Review (What's this?)

These were really easy to install and get up and running. Mid range bass pickup is a little weak but the aim-able tweeters do make a difference.

Pros: Ease of install

Cons: Mid range bass


Written By jp, Northeast Iowa on Friday, December 20, 2013

Crutchfield Customer Review (What's this?)

For the price I am very impressed. Great sound. I bought them for rear channel surround. I got the Polk RC85i for my front channel. The bass with those is pretty darn impressive for the cost. Together they sound very good.

Pros: Clean, crisp sound and priced well.

Cons: Plastic locking tabs are weak. I didn't break any during install but if over tightened I think they would break easily.

Polk Audio RC55i

Written By matthew c., Tobyhanna, PA on Tuesday, November 26, 2013

Crutchfield Customer Review (What's this?)

Good deal!

Polk RC55i... I'm going back for 2 more!

Written By Mo, Washington, DC on Friday, October 18, 2013

Crutchfield Customer Review (What's this?)

Works extremely well with my Yamaha home theaters system. I replaced the 3" shelf/wall hanging speakers with these for my rear surround. Amazing! Now, I need two more to flank my tv. The sound is incredible. Can't wait to get the two and a center channel speaker.

Pros: Great sound. Easy to install. Worth the price.

Cons: None

Polk RC55i

Written By JAB, Carmichaels, PA on Wednesday, July 17, 2013

Crutchfield Customer Review (What's this?)

Bought these speakers for the purpose of adding front height's to my expanded 7.2 home theater set-up. The speakers had to be mounted on or in a bulk head. My wife's not too thrilled about looking at speakers, so I decided to go "in-wall". I also swapped out my rear surrounds and surround L&R JBL speakers too, with these matching in-wall speakers.

Pros: Very easy to install. Template worked out great for locating, marking and cutting the holes. Screens and frames were easy to paint. Included a handy plastic masking cover for the speaker itself. Easily fit and mounted into the wall. Just hooked up wires, inserted and tightened screws with a drill running at a low RPM. Very slick design! Mounted very securely into place.

Cons: Screens are difficult to remove from frame before painting. Instructions say to use a paperclip - good luck. Likewise, screens are very difficult to reinstall into the frames after painting. I lost a thumbnail trying to force one back in! Eventually had to "bend" the edges inward, then install into the frames and continue to press and gently pound them in.

Polk Audio RC55i

Written By MrKritz, St. Paul on Friday, June 07, 2013

Crutchfield Customer Review (What's this?)

Perfect, easy to install and look and sound great. I put them in the ceiling of my kitchen and I was worried about the installation becase I have an old house and the celing is 1/2" gypsum board over 1" plaster and Lath but no problems at all, very easy and the look and sound great. BUY THEM!!!

Pros: Look Great, Sound Great and Easy to install

Cons: None

Polk RC55i

Written By Mark, State College Pa on Monday, May 06, 2013

Crutchfield Customer Review (What's this?)

I purchased these speakers for my media room. The room is not large (14x16). They were easy to install in the walls. You must cut the holes exactly to the template size. They fit snug and are easy to tighten in place. I painted the grills and plate to match the wall color. They look and sound Great!

Pros: Easy to install. Sound great. Look great.

Cons: none

Great solution for my needs

Written By Squid628, Houston, TX on Wednesday, March 27, 2013

Crutchfield Customer Review (What's this?)

These are my first speakers for a surround system, I'm no audiophile, but I wanted something that gave me good solid sound without breaking the bank. These were easy to install, came out of the box in great condition and to my ears sound nice bright and clear. I have two used as fronts, two as satellites, and they are paired to a Polk sub and center channel. With a Denon 1913 receiver, and a samsung 7100, my movie experience is everything I could have hoped for.

Pros: Well packaged, easy to install. Disappear once in the wall. Price is right.

Cons: So far, none.

Polk in walls

Written By KirkM, Aberdeen, MD on Monday, December 03, 2012

Crutchfield Customer Review (What's this?)

For the price, you absolutely cannot beat these speakers. These are the second pair I have purchased over the years, both times for rear surrounds. They do not have much bass and their clarity is not the greatest, but for surrounds, they are more than adequate. Would get them again.

Pros: Price

Cons: See above

Polk Audio RC55i

Written By PatP, New Braunfels, TX on Sunday, October 14, 2012

Crutchfield Customer Review (What's this?)

These speakers arrived as promised and look great! We are building a new house and will install them very soon. We can't wait to use them. These were recommended by Crutchfield and they have never let me down before, so I anticipate they will provide excellant quality.

Pros: Polk has an excellant reputation and I have other Polk speakers, These should be just as impressive.

Cons: None so far.

Awesome Speakers

Written By Robert, Grand Rapids, MI on Monday, October 01, 2012

Crutchfield Customer Review (What's this?)

Mounting was easy. Find the studs, copy the template, cut around them, hook up the wires and insert into the wall. Look great. I painted them with a foam roller. There is a plastic insert you put over the speakers to protect them when painting. It goes where the grill is, so you can paint the speaker frame and grill separately. I put the grill in and my wife didn't like it so I pulled them out, painted the grill black with a spray can. They look even better.. Once I programmed the speakers with my Denon AVR 1912 the rear sound came out beautifully! Really like these speakers.

Pros: Easy mounting. Nice looking speakers.

Cons: None

Polk Audio RC55i

Written By Anonymous, williamstown nj on Tuesday, May 15, 2012

Crutchfield Customer Review (What's this?)

great sound for in wall speakers !!!!

Pros: inwall and paintable

Cons: none

Polk Audio RC55i

Written By Anonymous, Gilbertsville, PA on Wednesday, March 28, 2012

Crutchfield Customer Review (What's this?)

I bought these for rear surround after my wife and I decided to change our family room. I researched many brands and settled on the Polk RC55i after reading the reviews. These speaker are perfect for what I wanted them for and sound great. Can't beat the price. I have two RC85i set-up for my front speakers and when combined with my subwoofer, I was blown away by the sound. My wife was also impressed by the quality. The best part was the ease of installation. If you are able to use a drywall saw and screwdriver, you will be able to install these speakers. Running the wire could be challenging, but not impossible. The one thing I would recommend is when using the templates to cut the openings in the wall, make sure you cut a fraction over the line. I made my openings a bit on the short side. The speakers went in very snug, which i thought was good, until I tried to put the screens back on. The frames compressed a bit and made it difficult to get the screens back on. No big deal though, just shaved the drywall with a rasp and in no time had them back in the wall. I am looking forward to enjoying these speakers for many years. My next step is to get my basement set-up with the same configuration.

Surround speakers

Written By Dean, Mn on Wednesday, February 22, 2012

Crutchfield Customer Review (What's this?)

The speakers seems to be of very high quality for the modest price. I plan to use the speakers as rears speakers in a 5.1 setup. I have not totally setup the system yet but have hooked them up and they sounded very good. Yesterday I painted the face covers. I used a small felt roller and rolled out the paint before applying to the mesh screen. It worked great!! The key is not having a lot of paint on the roller and a light touch with the roller. Used the same roller on the face plate with the plastic covers in place. The setup in the wall worked just like the directions stated. Very happy so far.

Great Surround Speakers

Written By Ross, Nevada on Sunday, April 24, 2011

Crutchfield Customer Review (What's this?)

Have been using these fo about five years as surround speakers. They work
great. Got the small ones cause I didn't need the low end but they still do a nice
job with 5.1 concerts. Very good sound repro. Just bought two more to use as
surround back since upgrading to 7.1 so they all match.
Had the local paint store put some of the room paint in a spray can so they
match the wall. They paint up real nice and come with plastic covers to cover
the speakers while you paint the frame. Cant even tell they are there - a plus
with the wife after telling her I was mounting two more in-wall speakers.

Used as a center channel speaker

Written By Frank C., Columbia, SC on Thursday, December 30, 2010

Crutchfield Customer Review (What's this?)

I wanted to go with an in wall center stage speaker but wanted to stay with the Polk
Audio name. I searched around and could not find anything that would fit that was
specifically a center speaker. I figured that the RC55i should work, I only needed one
but they are sold in pairs. It was cheaper to buy a pair of RC55i's than buy 1 specific
center stage that may or may not fit between the studs. Remember, all houses are not
perfect. I installed the RC55i horizontally under the wall mounted TV and it sounds great
for a center channel. Used the RC60i speakers also. See that review. The only
complaint I have is that the speakers are advertised to have pivoting tweeters behind the
grill. I started to aim the tweeters towards the sofas and they were so stiff and delicate
looking that I was afraid I was going to break them off.

Polk Audio RC55i

Written By abarron, Aurora, CO on Sunday, January 17, 2010

Crutchfield Customer Review (What's this?)

The audio clarity for dialog in movies is fantastic. It's my first center channel and I greatly appreciate the investment I've made with this purchase.

Polk Audio RC55i

Written By Joe, Lawrence Ma. on Wednesday, February 13, 2008

Crutchfield Customer Review (What's this?)

Everything was just as you said. I just want everyone to know how easy it was to install .Cut holes Insert And turn screws Iam soo HAPPY with the sond and quality. Thank You So much Joseph A sattisfied costormer

Hands-on research

What's in the box?

Download owner's manual

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

Product Research

Mounting Options


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, saunas, even under outdoor eaves.

Mounting Options

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. 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

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.

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Polk Audio RC65i Pair

Polk Audio RC65i


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Go for seriously enhanced sound with the RC65i!

The Polk Audio RC65i offers these features:

  • a 6-1/2" woofer
  • an improved frequency response of 60-20,000 Hz