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Polk Audio CSW155

Passive in-wall subwoofer

Item # 107CSW155

Experience deep, high-impact bass without sacrificing an inch of floor space.

Experience deep, high-impact bass without sacrificing an inch of floor space.

Maddie
Need help?
Contact our Virginia-based experts.

Item # 107CSW155

In stock
$999.00 each

Other options

Maddie
Need help?
Contact our Virginia-based experts.

About the Polk Audio CSW155

A low-profile in-wall subwoofer

Experience deep, high-impact bass without sacrificing an inch of floor space. Polk's CSW155 installs discreetly in your wall for a clutter-free look. Its 10" driver delivers impressively full, powerful lows — from the earth-shaking rumble of an on-screen avalanche, to the fine, precise tones of an upright bass in a jazz concert. This capable sub features a high-quality build and sophisticated design to ensure clean, smooth low-frequency response. And once it's installed, all you'll see is the included aluminum grille.

A low-profile in-wall subwoofer

Experience deep, high-impact bass without sacrificing an inch of floor space. Polk's CSW155 installs discreetly in your wall for a clutter-free look. Its 10" driver delivers impressively full, powerful lows — from the earth-shaking rumble of an on-screen avalanche, to the fine, precise tones of an upright bass in a jazz concert. This capable sub features a high-quality build and sophisticated design to ensure clean, smooth low-frequency response. And once it's installed, all you'll see is the included aluminum grille.

Note: The enclosure requires a cutout of 14"W x 60"H x 3.375"D. The enclosure is then drywalled over, leaving a 15.5"W x 17.5"H opening for the woofer and slot port, covered by the protective grille.

Polk's separate SWA500 amplifier is an ideal choice for powering the CSW155.

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.

READ LESS

Product highlights:

  • requires separate amplifier such as Polk's SWA500
  • 10" woofer
  • frequency response 36-120 Hz (-3dB)
  • rigid MDF (medium-density fiberboard) slot ported enclosure with steel plate reinforcement
  • Klippel-analyzed woofer for low distortion
  • 2" voice coil for high output and power handling
  • cast aluminum basket for minimal resonance
  • neodymium magnet
  • mounting hardware and anti-rattle isolation pads included
Dimensions and warranty

What's in the box:

  • In-wall/in-ceiling subwoofer
  • 4 Metal mounting brackets
  • 5 Self-adhesive foam isolation pads (1" x 8")
  • 16 Wood screws (Length=1")
  • 16 Flat washers
  • White aluminum grille w/plastic frame
  • 12 Wood screws (Length=3/4")
  • Owner's Manual
  • 2 Installation sheets (English and French)
  • Online product registration sheet

Customer reviews

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Polk Audio CSW155 reviews

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More details on the Polk Audio CSW155

Stacey B.

Features & specs

Features
Quantity in Package Single
Tweeter ---
Aimable Tweeter No
Woofer Composition Fiber
Woofer Surround Rubber
Moisture-resistant No
Connector Type Spring post
Bi-Amp Inputs No
Built-in Back-box No
Specs
Tweeter Size N/A
Midrange Size N/A
Woofer Size 10
Speaker Shape Rectangle
Cutout Width 60
Cutout Height 14
Power Range (Watts) up to 250
Sensitivity ---
Impedance (Ohms) 8
Frequency Response 36-120Hz
Parts Warranty Lifetime
Labor Warranty Lifetime

Product Research

Features

Matched Amplifier: The CSW155 requires and is designed to only be used with the Polk SWA500 Subwoofer amplifier (107SWA500, sold separately). The SWA500 comes with a SPEX Card that configures the EQ, crossover, and power control circuitry to match the CSW155 subwoofer.

10" Woofer: The CSW155 features a long-throw, Klippel-analyzed 10" fiber cone woofer with a rubber surround. By using a state-of-the-art Klippel Distortion Analyzer, Polk engineers optimized the woofer's motor structure, voice coil alignment and suspension for the best possible performance and low distortion even at extreme listening levels.

  • Neodymium motor structure makes the subwoofer shallow without sacrificing performance
  • Rigid cast aluminum basket to suppress resonance
  • 2" voice coil for high bass output and high power handling
  • Inverted roll surround for reliability
  • Dual spiders ensure linear excursion and prevent the driver from bottoming out

Slot Vent Enclsoure: The CSW155 has rigidly braced MDF enclosure construction for low resonance and rattle-free performance. The enclosure feature and integrated slot vent for deep, driving bass. The enclosure comes with a 1/2" thick, 16" x 14" MDF panel secured to the enclosure protecting the woofer. In addition to protecting the woofer, the cover can be used as a template for cutting the drywall for the grille.

Grille: The CSW155 is designed to fire through an opening in the wall or ceiling. Once the installation is complete, the opening is to be covered with the supplied 15-1/2" x 17-1/2" perforated aluminum grille.

Spring Posts: The CSW155 subwoofer has spring post terminals that will accept pin connectors and bare wire. The terminals are mounted on the bottom panel of the enclosure.

Mounting Options: The CSW155 is designed to be mounted between wall studs or ceiling joists. It fits comfortably between 16" OC (on center) studs. The supplied brackets and wood screws allow you to mount the CSW155 to any parallel wall studs or ceiling joists. The enclosure requires a cutout of 14" (w) x 60" (h) x 3.375" (d). You will drywall back over the enclosure, while leaving a 15.5" (w) x 17.5" (h) opening for the woofer and vented slot port which will be covered by the protective grille. When the enclosure is installed, it fits snugly against one of the wall studs or ceiling joists. To prevent rattling, the isolation pads should be installed between the enclosure and the stud or joist.

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Customer Q&A

3 questions already asked

Q
What gauge of speaker wire is recommended to run this sub to the swa500 amp?
[ Chad  Jan 03, 2022 ]
1 answer
A
the instructions recommend "at least 14ga or heavier", I ran 10ga which works fine and seemed to be the thickest gauge wire that would fit the speaker connections.
[ DWAYNE  Jan 04, 2022 ]
Q
Can the grill be painted on this Polk in wall sub?
[ Frank  May 19, 2021 ]
1 answer
A
We have not received any answers from other customers on your question. I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They should be able to help answer your question.
[ Calvin  Jun 03, 2021 ]  Staff
Q
Can you paint the grill of the Polk in wall sub?
[ Frank  May 19, 2021 ]
2 answers
A
Yes you can. The grate holes are large enough that could use a small roller (not soaking wet, damp roll so to speak) and brush for the frame. The best results I believe, is to use a color matched aerosol spray. If you are using additional paintable in wall speakers, the grates holes tend to be so small, you must use color matched aerosol anyway.
[ DWAYNE  May 19, 2021 ]
A
I have the same speaker. Yes - the grill comes separately so should have no issue painting the grill. I'm probably going to paint my grill to match the color of the wall.
[ BRIAN  May 19, 2021 ]

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