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Polk Audio - CSW155 - In-Wall Subwoofer (Single) is available to buy in increments of 1

Polk Audio - CSW155 - In-Wall Subwoofer (Single)

Polk Audio - CSW155 - In-Wall Subwoofer (Single)

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).

**REQUIRED** SWA500 - Dedicated Digital Power Amplifier for CSW Series Subwoofers (required for functionality). Please see related products for more information**

CSW155 Features:

  • 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.


Product Polk Audio - CSW155 - In-Wall Subwoofer (Single)
Accessories (1) White Grille
Optional Accessories
  • (1) Polk SWA500 - Digital Amplifier Sold Separate
Cabinet Warranty 5 Years
Drivers Warranty 5 Years
Original Purchaser Only Yes
In-Wall Subwoofer Total Pieces - 1
Height 60" (152.4 cm)
Width 14" (35.56 cm)
Shape Rectangle
Orientation Vertical
Driver Complement
  • (1) 10" (25.4 cm) d (Round) Long-Throw Polycomposite Subwoofer Driver - Subwoofer
Grille Dimensions
17.5" (44.45 cm) h x 15.5" (39.37 cm) w
External Amplifier
Recommended Amplifier Power Per Channel
Audio Quality
Total Frequency Response 30 Hz → 140 Hz
Nominal Impedence 8 ohms
Sensitivity (1 watt @ 1 meter)
Lower and Upper -3dB Limits 120 Hz → 36 Hz
Shape Rectangle
Flush Mounting Depth 2.875" (7.3 cm) -
Audio Inputs
Speaker Inputs (1) Pair of Heavy duty spring loaded terminals accept up to 12 Gauge wire
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