Built-in floor or ceiling 10-inch subwoofer system.

26 1/4" H x 13" W x 9"
66.67cm H x 33.02cm W x 22.86cm



Available Finishes:
Additional Images

Bass Performance That's Out of Sight

The Polk CSW100 is the least visually intrusive built-in subwoofer on the market today. It's designed for in-floor, in-ceiling or in-furniture placement. It fits comfortably between standard joists and the narrower QuietFloor spacing. Once installed, all you see is a tiny 4 1/2x14-inch grille (supplied). Visitors to your home will think they're seeing an air vent and they'll wonder where all that awesome bass is coming from!

CSW100 Features:

Winner: CEA Innovations Design & Engineering Award.*

Installs easily between standard floor or ceiling joists, or sits inside an entertainment center.

Long-throw 10-inch polycomposite subwoofer driver.

Polk’s proprietary, patented Dynamic Balance® technology allows our engineers to design out distortion-causing driver and system resonances, so you only hear the good sounds.

Klipple optimized coil alignment for extraordinarily efficient shallow-depth motor action even at tremendous volume levels.

Rigidly-braced MDF composite enclosure for resonance-free, totally rattle-free performance.

Patented high velocity compression drive bandpass alignment with slot-load bass venting for gutsy, driving bass.

Heavy duty mounting hardware and professional anti-rattle isolation pads included.

Grille opening dimensions: 3-inches H x 12-inches W (7.62cm H x 30.48cm W).

Powered for optimum performance by the SWA500 digital amplifier, available separately.

All Polk products are made using the best materials and the most advanced manufacturing techniques. They pass the industry’s most exhaustive quality tests, including drop testing, extreme signal response and UV & salt exposure testing. Polk loudspeakers are built to perform for a lifetime.

* The Innovations Design and Engineering Award is based upon descriptive materials submitted to the judges. CEA did not verify the accuracy of any submission or of any claims made and did not test the item to which the award was given.

Driver Complement

Diameter10" (25.40cm) 
TypeLong-throw Dynamic Balance woofer with polymer composite cone 


CEA2010 Rating
CEA2010 Low120.4 
CEA2010 Ultra103.6 
Total Frequency Response27 - 140 Hz 
Upper -3dB Limit120 kHz
Lower -3dB Limit33 Hz
Nominal Impedance8 ohms
Inputs1 set of binding posts 


Height26 1/4" (66.67cm) 
Width13" (33.02cm) 
Mounting Depth (includes 1/2" drywall)8 1/2" (21.59cm) 
Overall Depth9" (22.86cm) 
Product Weight (each)33.00 pounds


Unit of Measureeach 
Total Shipping Weight53.00 pounds


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.

CSW100 Media

CSW100 Accessories