In-wall subwoofer

60" H x 14" W x
152.40cm H x 35.56cm W x



Available Finishes:
Additional Images

There are no downloads available. If you need assistance, please contact us.

Bass Performance That's Out of Sight

The CSW155 combines stealth convenience with incredible technology to rival the performance of many free-standing, floor-cluttering subwoofers. With one of the shallowest drivers ever engineered (a Polk Audio exclusive), this subwoofer produces air-moving, room-filling bass, while disappearing behind an included perforated aluminum grille (15 1/2" x 17 1/2") that looks like an "air conditioning return" vent. Deep and musical, it's professionally matched to other Polk Audio loudspeakers, allowing you to build the home theater of your dreams in new construction or even in existing walls (60" H x 14" W x 3 3/8" D).

CSW155 Featrures

Installs Easily between standard 16" OC (on-center) studs.

Long-Throw 10" Polycomposite Subwoofer Driver.

The shallowest driver ever engineered by Polk Audio, for superior performance in only 33/8-inch of enclosure depth.

Patented Dynamic Balance® Construction uses laser interferometry to tune out performance-robbing resonances before you hear them.

Inverted Roll Surround for long life in demanding in-wall environments.

Inert Cast Aluminum Basket Suppresses Resonances.

Powerful Neodymium Motor Structure for exclusive shallow design with maximum "throw."

Dual Spiders ensure smooth linear excursion and prevent "bottoming out."

2" Wide Voice Coil for high power-handling and massive bass.

Klippel Optimized coil alignment for extraordinary efficient shallow-depth motor action even at lifelike volume.

Rigid MDF Slot-Ported Enclosure, stiffened and reinforced with steel plates.

Perforated Aluminum Grille Included (15 1/2" x 17 1/2").

Heavy-Duty Mounting Hardware and professional anti-rattle isolation pads included.

Powered For Optimum Performance by the SWA500 digital amplifier, available separately.


CEA2010 Rating
CEA2010 Low121.3 
CEA2010 Ultra103.9 
Total Frequency Response30Hz - 140Hz 
Upper -3dB Limit120Hz kHz
Lower -3dB Limit36 Hz
Nominal Impedance8 ohms
InputsHeavy duty spring loaded terminals accept up to 12 Gauge wire 


Cabinet Dimensions
Height60" (152.40cm) 
Width14" (35.56cm) 
Mounting Depth (includes 1/2" drywall)2 7/8" (7.30cm) 
Overall Depth3 3/8" (8.57cm) 
Product Weight (each)36 pounds


Unit of Measureeach 


Speaker WarrantyLifetime 

Specifications, dimensions and features subject to change without notice. For more information call us at 1-800-377-7655 (USA and Canada). Outside of North America call +1 (410) 358-3600.

CSW155 Media

CSW155 Literature

Want to know more? Want to dig just a little deeper to learn about this product? Here's a list of source material that will give more detail, other perspectives, and answer questions you may have.

CSW155 Accessories