Brand New with Full Warranty!

Bowers & Wilkins ISW4

Color: Primed white grille

In-wall subwoofer system requires external rack-mount amplifier, 2 x 8" paper kevlar bass drivers. New thin bevel design!
Availability: In stock
B&W_ISW4 - Pw

Sold as: Each

MSRP: $1,100.00 - you save $200.05

Every single item that we sell is brand new, A-Stock merchandise. That means factory-sealed - not refurbished, not a demo and not a return. We purchase all our items through the authorized dealer network for each brand, so you get a full warranty at no additional cost.

Free shipping in the contiguous U.S.

Regardless of the color of the drivers and enclosure, the only visible parts - once installed - will be white (white grille and trim, if this item is trimmed).

The ISW-4 in-wall subwoofer ifeatures two long-throw 200mm (8in) drivers, which allow it to move the large volumes of air needed for high-quality low-frequency output. Need big sound, slamming bass and audiophile extension, but dont want to see where it comes from? The ISW-4 in-wall subwoofer is for you. Two long-throw 200mm (8in) drivers allow it to move the large volumes of air needed for high-quality low-frequency output. The speaker is housed in its own sturdy back box for rock-solid stability and minimum sound bleed, and is powered by the SA250, a separate audiophile-standard 250W Class D amplifier.


Drive Units
2 x 200mm (8 in) paper/aramid fiber cone

Frequency Range
-6dB at 17Hz and 290Hz adjustable (EQ at A)

Frequency Response
--3dB 21Hz - 200Hz adjustable (EQ at A)

Bass Extension
-6dB at 17Hz (position A)
-6dB at 21Hz (position B)
-6dB at 24Hz (position C)

Power Handling 200W 8 ohms (Minimum 6.3 ohms)
Finish Frame/ Grille
Semi-matte white suitable for customizing painting Accessories
Pre-mount kit for new construction


Approximate Dimensions:
Width: 11.6 "
Height: 20.6 "
Depth: 3.7 "
Cut-Out Dimensions

Depth with Grille: 4.5 "
Height: 19 "
Width: 10 "

Approximate Weight:
Unit: 14 lbs
Shipping: 20 lbs

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