About the Polk Audio 255C-RT
You finally replaced that mammoth tube TV with a flat-panel that hangs on the wall. You created the home theater you've always dreamed of with the wires tucked neatly away. The old center channel speaker that your significant other refers to as "the beast" has no place to go but out. Let the Polk 255C-RT show it the way.
Leaves a big impression on your ears, not on your eyes
This in-wall center channel speaker is built to perform. Potent drivers work with the PowerPort® bass technology to deliver punchy lows. Polk's silk tweeter conveys every breath of dialogue. And it's swivel mounted so you can aim the sound toward your listening position, for better performance. All of this from a center channel speaker that's out of sight, in more ways than one.
Plays well with others
The Polk 255C-RT is voice-matched to Polk's free-standing RTi speakers. It can mingle with matching towers or bookshelves. Or it can join in harmony with other members of the "Vanishing" RT speaker family.
An optional in-wall bracket is recommended for installing the 255C-RT in-wall center channel speaker 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.
Product highlights:
- frequency response 50-25,000 Hz (-3dB)
- 1" swivel-mount silk/polymer dome tweeter
- dual 5-1/4" Dynamic Balance® woofers
- handles up to 150 watts
- sensitivity 90 dB
- 8-ohm impedance
- timbre matched to Polk RTi series speakers
- PowerPort® technology for punchier bass
- tweeter level switch for custom sound
- paintable Sheer-Grille™ for stealth installation
- cutout: 13-1/8"W x 7-5/8"H
- mounting depth: 3-3/8"
- warranty: lifetime
- Our 60-day money-back guarantee
- MFR # AW2550-A
What's in the box:
Polk Audio 255C-RT owner's manual
- In-wall center-channel loudspeaker
- White metal grille
- Mounting template
- Owner's Manual
- Sheer-Grille Painting instructions
- Online Registration Card
- Polk Audio product brochure
Featured review
Great sound and finished appearance. Grille was painted to match the wall surface and looks great.
Jared from Wylie, TX
Customer Q&A
Q
I'm not able to mount in wall, can I mount this in the ceiling directly above tv and still get great sound?
A
I have done this before, install the center channel in the ceiling, not with Polk Audio, but with speaker craft, and it sounded the same as my Polk Audio that are mounted below my TV.
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Reason #5
Free instructions & discounted install gear
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REVIEWS
Customer reviews
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Polk Audio 255C-RT reviews
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Polk Audio 255C-RT
Crutchfield customer from St Simons Is, GA on 4/1/2019
Great looking speakers with awesome sound.
Pros: Looks great in wall.
Cons:
0 of 0 found this helpful
Ridiculously awful.
Douglas from Spartanburg, SC on 3/15/2019
So disappointed in Crutchfield and in Polk, both brands I have used and trusted. But in my un-insulated interior wall this speaker is completely unusable. The echo and balance is so bad you can not understand voices. I have tried every setting of the speaker itself and in the two months I've had them installed I have used them once. I will have to spend a great deal more now to modify the cavity to create a box-like enclosure before I can use my home theater. If they needed this enclosure as desperately as they do it should have been part of the speaker or at least a ready made accessory I could buy. I have owned other in-wall speakers and never had this sort of problem. Calls to Polk and Crutchfield yielded no solutions.
Pros: Easy installation.
Cons: Unusable at any volume unless you constuct an enclosure in the wall.
1 of 3 found this helpful
Awesome Sound
Dennis from Muldoon, TX on 2/23/2019
I bought these speakers for a new home my wife and I are building. We are probably about 4 months from actually installing them in the new home. For this reason, I hooked everything together to 55" TV and blue ray player to make sure of the working condition of the components. Sound awesome sitting just 4' apart. There is no doubt that this equipment will give us exactly what we were looking for . Thank to Cole for all of the help in putting together this system. Items purchased together: 1 Ea - Denon AVR Model S64OH 1 Ea - Polk Audio In-Wall Dual Center Channel 255C-RT 2 Ea - Polk Audio In-Wall Daul 265-RT (Front R&L) 2 Ea - Polk Audio 6-1/2"; 70-RT (Rear R&L) 1 Ea - Klipsch R-100SW 10" Powered Sub-Woofer
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0 of 1 found this helpful
Polk Audio 255C-RT
Crutchfield customer from Denmark, WI on 10/8/2018
The majority of the sound comes from the center channel and it sounds great in the new home theater room!
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0 of 0 found this helpful
255C-RT
Crutchfield customer from Ashland, VA on 8/22/2018
I hooked these speakers up before installation, and they sounded really nice. When I inspected them before installation, I realized that you need 14-3/8" between studs to install them horizontally. Well, for 16" on center studs, there's a nominal gap of 14-1/2". In the real world, that nominal dimension can be affected by a warped stud, stud installed a little crooked, or installed off center just a bit. So, 1/8" of grace just isn't adequate for some real world situations, like mine. I didn't want to gouge out the studs for additional clearance as there are other speakers that could fit my bill. Helpful hint: If you do try to install this speaker horizontally with 16" on center studs, probe your walls first to make sure there's clearance. I used a stud finder and probed with a finish nail. That saved me from cussing.
Pros: Sounded good. Great price match by Crutchfield. Crutchfield very gracious upon the return.
Cons: Very little clearance in design length, as discussed above.
5 of 5 found this helpful
Polk Audio 255C-RT
Crutchfield customer from Clinton, MD on 7/31/2018
Speaker was easy to install and sounds great.
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0 of 0 found this helpful
Polk Audio 255C-RT
Crutchfield customer from Provo, UT on 7/30/2018
great speaker.
Pros: easy install spring loaded wire connectors
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0 of 0 found this helpful
Polk Audio 255C-RT
Crutchfield customer from Daphne, AL on 7/24/2018
Easy to install, excellent sound, great price and fast delivery.
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Cons: NONE!
0 of 0 found this helpful
Polk Audio 255C-RT
Crutchfield customer from Anthem, AZ on 6/29/2018
0 of 0 found this helpful
Polk Audio 255C-RT - Fantastic Speaker
Jared from Wylie, TX on 5/1/2018
Great sound and finished appearance. Grille was painted to match the wall surface and looks great.
Pros: Sounds quality is excellent.
Cons:
0 of 0 found this helpful
Polk Audio 255C-RT
Rob from Aurora, CO on 4/17/2018
This speaker was easy to install and the sound is pretty good for the price.
Pros: Great sound and very easy to install.
Cons: None so far
0 of 0 found this helpful
Polk Audio 255C-RT
Charles from Arvada, CO on 3/8/2018
0 of 0 found this helpful
Great center speaker
Hubert from Saint Simons Island Georgia on 1/3/2018
Easy installation excellent sound quality would highly recommend this speaker
Pros: Easy installation
Cons:
0 of 0 found this helpful
great sound
Crutchfield customer from Prairieville, LA on 12/8/2017
This center channel blends in beautifully . Mounted below the tv and above the mantel, the speaker looks great and sounds great. I used the rough in bracket to install. With the weight of the speaker, I would be surprised if a standard drywall installation would be effective.
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0 of 0 found this helpful
Polk Audio 255C-RT
Crutchfield customer from Medina, OH on 11/12/2017
Very happy with this, the magnetic cover is a very nice touch!
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0 of 0 found this helpful
Excellent sound for the price
Tom from Kenosha, WI on 10/29/2017
I used it to upgrade my basement home theater. It has given me great sound, and better balance for my system. I replaced a single in ceiling speaker. . Excellent speaker for the price, and instillation was complete within an hour. Looks so good in the room. Love the magnetic grill cover.
Pros: Price, sound, easy instillation.
Cons: None
0 of 0 found this helpful
Great sound
Joey from Abilene, TX on 10/2/2017
I outstanding agree that these are great speakers.
Pros: Size and capacity
Cons: None
0 of 0 found this helpful
Received broken twice
Steve from Virginia Beach va on 9/10/2017
I have received the product twice now, broken both times on arrival. I have sent both back and have not received a new one yet. Crutchfield was very responsive sending the second one out. Not so much on the third one.
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1 of 3 found this helpful
Polk Audio 255C-RT
Crutchfield customer from Hampton Bays, NY on 8/10/2017
0 of 1 found this helpful
Excellent sounding center channel!
Douglas from Flemington, NJ on 6/11/2017
Excellent wall center channel speaker. The highs, minds and lows all sound great. Very easy installation and I really like that the grill is held in place via magnets rather than their older design of pressure fitting it. Magnets allow for easy removal if need be.
Pros: Easy install, great sound
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4 of 4 found this helpful
Great Speakers
Craig from Nashville, TN on 6/10/2017
I love the speakers. They look great built into the wall and with the instructions it made an easy install.
Pros: Great sound, easy install with the helpful instructions.
Cons: None
0 of 0 found this helpful
Polk Audio 255C-RT
James from Illinois on 6/5/2017
Easy install and wiring. Looks great and crisp sound.
Pros: Easy install, sounds great.
Cons: Nine
0 of 0 found this helpful
Polk Audio 255C-RT
Wilbert from Sugar Land, TX on 5/7/2017
Awesome sound from this center channel. Very impressed with it's performance.
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0 of 0 found this helpful
Great tone and bass
Crutchfield customer from Roanoke, VA on 1/17/2017
Very pleased with the outcome and it was straight forward to fit just watch out for the wall studs! The center speaker is the most important did not put in ceiling as builder had arranged but under the TV in wall.
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0 of 0 found this helpful
Clean voice projection and a full sounding center channel
I used it to provide the center channel in an entertainment cabinet where there was a size restriction. Easy installation. Excellent full sound with clear voice projection.
Pros: good sound easy install
Cons: none
0 of 0 found this helpful
Hear the Dialougue Difference
Brad from Saugatuck, MI on 12/24/2016
Great speaker. The voices in movies stand out clearly and are the movie experience is awesome. We have them paired with 2 Polk Audio 265 RTs in the front and we can't say enough about how nice it is to enjoy a movie in our home theater. Easily installed. Template works great.
Pros: Easily installed - sounds great
Cons: none
5 of 5 found this helpful
Polk Audio 255C-RT
Crutchfield customer from Wyncote, PA on 12/23/2016
Easy installation using the screw tabs. Had to continue screwing longer than I expected, but follow the instructions and it tightens right up. Pivoting tweeter helped since my installation was about 8' AFF. Much better high/mid range and vocals than my TV speakers and pairs great with the receiver and sub I have as well. Looking forward to being able to purchase some matching Polk front sides and back surrounds.
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1 of 1 found this helpful
Polk Audio 255C-RT
Crutchfield customer from Crown Point, IN on 12/12/2016
0 of 1 found this helpful
Polk Audio 255C-RT
Crutchfield customer from Hillsboro, Ohio on 10/31/2016
Great sound and very well built. I was worried that the frame would be flimsy and may be difficult to install but it was not.
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0 of 1 found this helpful
Polk Audio 255C-RT
Crutchfield customer from Onalaska, WI on 10/3/2016
This was a great purchase for our theatre room. Everything that you could possibly need was in the box, including a template for where to cut into the wall. It helped make the process so much easier instead of "guessing" based off the measurements, etc.
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0 of 1 found this helpful
Great Value
David from Mustang, OK on 9/12/2016
I have turned into a huge Polk fan, the sound is natural and full, makes my surround system sound much better. The speaker is well built, great quality for a good price. The magnetic speaker cover is awesome.
Pros: Great sound, look and quality
Cons: Not much room for error on cutting out for the speaker, cut on the line and it was a tight fit, measure and find your studs, only about an inch to spare
4 of 4 found this helpful
Great center channel!
Chris from North Carolina on 12/28/2015
I bought this as part of a complete system for my new home. The speakers disappear on the wall especially if you take the time to paint them. They do take a little tweaking to get them to lay flat, just gently work the edge of the frame till they lay flat.
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1 of 2 found this helpful
Easy to install and good sound
Harsha from Texas on 12/26/2015
0 of 1 found this helpful
Polk Audio 255C-RT
Glenn D from Florida on 11/19/2015
install was easy and after hook up this center channel lived up to my expectations
Pros: easy install
Cons: none
0 of 1 found this helpful
Great system on a budget!
Crutchfield customer from North Carolina on 11/17/2015
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!
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3 of 3 found this helpful
Awesome center speaker....
Dave from Las Vegas ,nv on 5/8/2015
Night and day diffference from my old center speaker,clear and precise dialogue...
Pros: Accurate sound,easy to install ...
Cons: None...
4 of 4 found this helpful
255C-RT
doug from new york on 4/26/2015
a perfect center channel match to my ceiling mounted 70-RT rear surrounds (rounded out with a spare PSW-120 subwoofer) and a great compliment to pair of vintage SDA-2Bs up front ... kudos to Polk for their advice on the RT speaker purchases, and on the Marantz pre- and power amps that drive them.
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1 of 1 found this helpful
Polk Audio 255C-RT
Crutchfield customer from grand rapids, mi on 3/27/2015
Great product for the discounted price I paid.
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0 of 2 found this helpful
Polk Audio 255C-RT
Crutchfield customer from Milwaukee, WI on 3/17/2015
Sounds great! Extremely easy to install. Very satisfied.
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1 of 2 found this helpful
Clear
clear from Philadelphia on 3/16/2015
Clear, warm and detailed sound. Worth the money
Pros: Easy to install
Cons:
1 of 2 found this helpful
Great Center Channel
Dan from Ohio on 2/27/2015
Purchased this to use as a center channel for our soon-to-be 7.1ch system. Impressively clear, full, and vibrant sound. Very noticeable upgrade from the old Sony speaker it replaced. Highly recommended.
Pros: Easy to install, strong and sturdy frame, magnetic cover, high quality sound.
Cons: Not much wiggle room to center in between 16" studs, but that would be expected for an in-wall speaker of this size. Use a really good stud finder and carefully measure before cutting!
3 of 3 found this helpful
Great speaker
KarlD from Ohio on 2/11/2015
Great speaker for a wall mounted speaker setup. Easily fits in an existing stud bay - just make sure your TV is centered over an open stud bay if you want the speaker to be centered underneath the TV. Haven't put it though all the paces yet, but so far it sounds great, and it definitely looks great. The magnetic cover is a nice touch.
Pros: Size, looks
Cons:
3 of 3 found this helpful
Good sound from samm speaker
Alan M. from New York on 1/31/2015
Bought these speakers based on my knowledge of the company, the Crutchfield advisor's recommendation, and pricing. We paired the speakers with the Onkyo TX-NR828. Great center speaker at a good price and size. They are truly wonderful speakers and I can see how couch potatoes are created.
Pros: sound, size, price
Cons: none yet
2 of 2 found this helpful
Polk Audio 255C-RT
Rich from Washington on 1/25/2015
Easy installation and they sound great. It was installed with 625-RT's in the front driven by a Yamaha RX-V377. I love how all the speakers "disappear" into the wall, and I haven't even painted them yet. Blake was great in answering all my questions.
Pros: Easy install, "disappear" into wall.
Cons: None yet!
1 of 1 found this helpful
Polk Audio 255C-RT
Crutchfield customer from Illinois on 1/7/2015
0 of 1 found this helpful
excellent product
suzy from Pennsylvania on 12/14/2014
This product has great sound quality and is a wonderful addition to our newly installed Home theater system. We love the quality, easy install, and price for the product.
Pros: price, quality, sound
Cons:
2 of 2 found this helpful
Polk Audio 255C-RT
Mark from Mesa, Az on 7/19/2014
Great center channel speaker
Pros: Easy to install great sound
Cons: None yet
0 of 1 found this helpful
Polk Audio 255C-RT
Crutchfield customer from Lakeway, TX on 6/24/2014
0 of 1 found this helpful
Powerfully Crisp Center Speaker
BrandonB from Cedar Rapids, IA on 3/17/2014
This center speaker is fantastic - I'm not an audiophile and I haven't listened to lots and lots of speakers, but when it comes to center speaker clarity, from sports announcers to zombies to music listening, this speaker delivers. I personally don't understand what makes an expensive center speaker an expensive center speaker, but I'm satisfied that I didn't skimp on this speaker.
Pros: Crisp and clear Easy to install Sleek design
Cons: Pricy
1 of 2 found this helpful
Great center channel speaker
Utennessee from Memphis, TN on 12/26/2013
Great center channel speaker. Super easy to install and looks great. The grill was very easy to paint. Sounds awesome with my Denon 7.1 receiver.
Pros: Easy to install, looks and sounds great
Cons: None come to mind
1 of 1 found this helpful
Polk Audio 255C-RT
DougB from St. George, Utah on 12/18/2013
As usual, Polk has another great product. The sound is incredible, I can hear stuff I never heard before. TV sounded like it was getting louder in the background and quieter in the talking making it hard to hear what they say sometimes. Now I can here everything they say. Having a speaker hooked up through a Marantz 7003 receiver I can add just a little more gain to it or less to others for the perfect match. Love it!
Pros: Great sound, price, and easy installation
Cons: As with any in wall or ceiling speaker, I always worry about breaking the tabs when tightening them. I wish they beefed up the housing and the tabs. I didn't have trouble with this speaker, but I tightened it just slightly beyond when it grabbed, not sure it's really tight enough yet.
1 of 1 found this helpful
Nice quality sound, easy install
SK from Honolulu, HI on 11/16/2013
I have bought two of these and the sound is great for small to mid-size rooms. Nice clean look and easy install. I have installed these both with and without the optional mounting brackets. The brackets are really only needed to show your drywall guys where to cut the holes, they do not help much for actual installation.
Pros: Great sound quality for the price Easy install Clean look
Cons: None
1 of 1 found this helpful
Excellent
JEH from Denver, CO on 5/17/2013
It's a little pricey but well worth it. Installation was a snap and it sounds fantastic.
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1 of 1 found this helpful
Polk Audio 255C-RT
Steve from Buda, Texas on 1/19/2013
Sounds great, looks fantastic, and Installation was a breeze!
Pros: Sound, installation, appearance
Cons: None
0 of 0 found this helpful
Polk Audio 255C-RT
EdP from Alpharetta, GA on 6/6/2011
Installation was easy and the template was accurate. Because of the double woofers, I am using this speaker as the center channel in a 5.1 application, and although the specs (and price) are impressive, listening is not a "revelation". The speaker is good - no complaints, its doing what I ask of it; but I haven't experienced anything that "stands out" from this speaker, which makes me wonder if another, less expensive speaker would have done the same job. As usual, Crutchfield is great with their customer support, sales staff, and quick shipping!
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34 of 37 found this helpful
More details on the Polk Audio 255C-RT
Features & specs
| Quantity in Package | Single | |
| Tweeter | Dome | |
| Midrange Size | --- | |
| Woofer Size | 5.25 | |
| Cutout Size | 13.0625 x 7.5625 | |
| Woofer Composition | Polymer Composite | |
| Woofer Surround | Rubber | |
| Power Range (Watts) | 10-150 | |
| Sensitivity | 90 dB | |
| Impedance (Ohms) | 8 | |
| Frequency Response | 50-25kHz | |
| Connector Type | Spring post | |
| Bi-Amp Inputs | No | |
| Built-in Back-box | No | |
| Parts Warranty | Lifetime | |
| Labor Warranty | Lifetime | |
Product Research
Vanishing Series In-Wall Center-Channel Speaker: The Polk Audio Vanishing Series in-wall center-channel loudspeaker (255c-RT) features a precision-engineered minimally flanged design and Polk's exclusive Sheer-Grille, which protrudes only 7mm from its surroundings. Installing virtually-flush in your wall, the Polk Audio Vanishing Series in-wall center-channel loudspeaker offers a one-cut, drop-in installation and rotating cam stabilizing system. The Polk Audio Vanishing Series in-wall center-channel loudspeaker provides superior high-performance sound from its dual 5.25" woofers and aimable 1" tweeter, with Reflective Room (Tweeter) Compensation control.
Driver Technology
Infinite Enclosure Design
Connections
Mounting Options
Driver Technology
Dynamic Balance Technology: Laser imaging technology allows Polk Audio engineers to see the entire vibrating surface of a driver and tweeter; they can actually see the resonance develop on the speaker cones-resonance that is the root cause of loudspeaker distortion. Being able to see the resonance develop, they then determine the Dynamic Balance of high-tech materials, geometry and construction that together effectively tune out the offending resonance. Exclusive Dynamic Balance Composite Material Technology delivers sound that is effortlessly clean and clear, even at lifelike volume levels.
Klippel Optimized Motor Structures: The Klippel Distortion Analyzer allows Polk engineers to optimize each driver's motor structure, voice coil alignment and suspension to insure smooth, unimpeded movement even at extreme listening levels. This is especially important in the shallow depth area afforded an in-wall built-in loudspeaker.
Dual Midranges: The Polk Audio Vanishing Series in-wall center-channel loudspeaker employs two 5.25" Dynamic Balance mineral composite polypropylene cone midrange drivers with rubber surrounds for a smooth, consistent frequency response. Each midrange driver features a lightweight, strong composite basket that work in conjunction with Klippel Optimization to keep moving parts in rigid alignment while further damping performance-robbing resonances.
Silk Dome Tweeter: The Vanishing Series in-wall center-channel loudspeaker employs a 1" Dynamic Balance silk polymer composite dome tweeter for crisp, clear imaging. The high-performance silk dome tweeter in the Vanishing Series in-wall center-channel loudspeaker features a 15° swivel housing, for more direct high frequency control, excellent off-axis imaging and more placement flexibility.
Reflective Room (Tweeter) Compensation Control: An easily accessible Reflective Room (Tweeter) Compensation switch allows you to make advanced audio tweaks to optimize the sound for any installation. Use the Reflective Room (Tweeter) Compensation switch to digitally compensate for harsh reflective surfaces. It doesn't merely reduce high frequencies; it actually allows you to "notch-out" a specific area of the spectrum (3500-6000Hz) where room acoustics most often interfere with performance.
- Filter Setting: If your listening room is very reflective, with smooth sheetrock walls, hardwood floors, and non-cushioned furniture, the sound will be overly "bright" and unnatural. Selecting the "Filter" setting compensates for the effect of reflectivity in a hard room. Tweeter attenuation flattens room response, without hindering higher frequency response, for warmer, more realistic sound and more accurate imaging.
- Normal Setting: If your room is not reflective, with curtains, artwork, lots of cushioned furniture and carpeting, sound will be absorbed by the room, resulting in more realistic reproduction and more accurate imaging. In this case, select the Normal setting.
Timbre Matched: The Polk Audio Vanishing Series in-wall center-channel loudspeaker is timbre-matched to Polk Audio's high-performance RTi bookshelf and floor-standing loudspeakers. This allows you to match them to an existing Polk Audio home theater speaker system and enjoy seamless blending from speaker to speaker. Timbre-matched speaker components will insure the same true response throughout your system.
Frequency Response: The overall frequency response of the in-wall center-channel loudspeaker is 30Hz to 27kHz, and the -3dB frequency response is 50 to 25kHz.
Infinite Enclosure Design
Infinite Baffle Tuning: Infinite Baffle Tuning uses the virtual enclosure of the in-wall space for deep bass response and superior overall sound.
Wafer-Thin Sheer-Grille: The Polk Audio Vanishing Series in-wall center-channel loudspeaker features Polk's exclusive wafer-thin Sheer-Grille, a magnetically-secured grille that protrudes only 7mm from its surroundings. The Sheer-Grille can be painted to match your décor, making it virtually indistinguishable from its surroundings. The Sheer-Grille has nearly transparent, ultra-small perfs, and are acoustically inert, for dynamic, unimpeded sound and more uniform coverage, even in larger rooms.
Note: We highly recommend you use a can of spray paint matched to the wall color you want the Sheer-Grille to blend with. Never use a brush or roller to paint the grille, as this will clog the perf holes.
Connections
Gold-Plated Spring-Loaded Posts: The in-wall center-channel loudspeaker has a gold-plated pair of spring-loaded binding posts that can accept up to 12-gauge wire, single banana plugs, or pin connectors.
Mounting Options
Applications: You can use the Polk Audio Vanishing Series in-wall center-channel loudspeaker to complete a system of traditional loudspeakers or in-wall speakers, by adding an inconspicuous center-channel speaker.
Placement: The in-wall center-channel loudspeaker is designed to be installed above or below your flat-panel television. Install the in-wall center-channel loudspeaker as close to ear level as possible. If the speaker needs to be installed lower or high than ear level, then aim the tweeter accordingly.
Note: Do not block the in-wall center-channel speaker with your TV or furniture, as this will disrupt and muffle the sound.
Rotating Cam System: The Polk Audio in-wall center-channel loudspeaker utilizes a rotating cam system to ensure a secure, vibration-free installation.
Installation: The Polk Audio Vanishing Series in-wall center-channel loudspeaker (255c-RT) can be installed in new or existing construction.
- Existing Construction: In existing walls, use the included cardboard template for one-cut, drop-in simplicity. Achieve secure, vibration-free efficiency with a simple turn of Polk's Rotating Cam system (5 rotating cams).
- New Construction: Pre-construction brackets (sold separately) are available for new-build or open-wall retro-fitting.
Dimensions: Crutchfield Measurements.
| In-Wall Center-Channel Dimensions | Model # 255c-RT |
| Overall Dimensions (with grille) | Width = 14.8125" Height = 9.3125" |
| Cutout Dimensions | Width = 13.0625" Height = 7.5625" |
| Product Depth (including grille & wiring) | Depth = 4.125" |
| Mounting Depth (using 1/2" drywall) | Depth = 3.75" |
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