In-Wall Subwoofer

  • Tech Specs
  • Support
Tech Specs


  • Total pieces


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


  • Cabinet Warranty
    5 years
  • Drivers Warranty
    5 years
  • Original Purchaser Only

Despatch Cartons

  • Carton 1
    7.25" (18.42 cm) h x 18" (45.72 cm) w x 65" (165.1 cm) d - 49 lbs (22.23 kg)

In-Wall Subwoofer

  • Qty Included
  • Orientation
  • Height
    60" (152.4 cm)
  • Width
    14" (35.56 cm)
  • 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

In-Wall Mount

  • Available Orientations
  • Shape
  • Dimensions
  • Flush Mounting Depth
    2.875" (7.3 cm) -

Audio Quality

  • Total Frequency Response
    30 Hz → 140 Hz
  • Nominal Impedance
    8 ohms
  • Lower and Upper -3dB Limits
    120 Hz → 36 Hz


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

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, whilst disappearing behind an included perforated aluminium 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 theatre of your dreams in new construction or even in existing walls (60" H x 14" W x 3 3/8" D).

CSW155 Features

Installs Easily between standard 16" OC (on-centre) 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 Aluminium 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 Aluminium 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.