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Polk Audio® White 10" In-Wall Subwoofer-CSW155

Model #: CSW155
Polk Audio
At a Glance

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).

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$99,999.00Save $NaN

Get to know this product.

  • 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.
Useful Documents


Connector Type:Heavy Duty Spring Loaded Terminals


Driver Component Size:10"


Mount Depth:2.88


Sold As:Each


Speaker Type:SubWoofer
Frequency Response:30Hz - 140Hz




Total Pieces1


Included Accessories(1) White Grille
Required Accessories(1) Polk SWA500 - Digital Amplifier Sold Separate


Cabinet Warranty5 years
Drivers Warranty5 years
Original Purchaser OnlyYes

Shipping Cartons

Carton 17.25" (18.42 cm) h x 18" (45.72 cm) w x 65" (165.1 cm) d - 49 lbs (22.23 kg)

In-Wall Subwoofer

Quantity Included1
Height60" (152.4 cm)
Width14" (35.56 cm)
Driver Complement(1) 10" (25.4 cm) d (Round) Long-Throw Polycomposite Subwoofer Driver - Subwoofer
Grille Dimensions17.5" (44.45 cm) h x 15.5" (39.37 cm) w

In-Wall Mount

Available OrientationsVertical
Flush Mounting Depth2.875" (7.3 cm) -

Audio Quality

Total Frequency Response30 Hz → 140 Hz
Nominal Impedance8 ohms
Lower and Upper -3dB Limits120 Hz → 36 Hz


Speaker Inputs(1) Pair of Heavy duty spring loaded terminals accept up to 12 Gauge wire

Misc. Specs

Product Weight36
Frequency Response30 Hz - 140 Hz
Manufacturer Warranty5 Year
Impedance8 ohms
Height (in.)60
Width (in.)14
WarningProposition 65 Warning for California Residents