SKU: 35220947888

BOWERS & WILKINS ISW-4 DUAL DRIVER SUBWOOFER

Sale price$674.55 Regular price$749.50
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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

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Description

BOWERS & WILKINS ISW-4 DUAL DRIVER SUBWOOFERSee nothing, hear everything Need big sound, slamming bass and audiophile bass extension, but dont want to see where it comes from? Then the new ISW 4 in wall subwoofer is the product for you. Its two long throw 200mm drivers allows the ISW 4 to move large volumes of air needed for high quality low frequency output, but is nicely hidden away inside a wall. Powered by a separate audiophile standard 250W Class D amplifier the SA250 Mk2, the system keeps

 

See nothing, hear everything


Need big sound, slamming bass and audiophile bass extension, but don’t
want to see where it comes from? Then the new ISW-4 in-wall subwoofer is the product for you. Its two long-throw 200mm drivers allows the ISW-4 to move large volumes of air needed for high-quality low-frequency output, but is nicely hidden away inside a wall. Powered by a separate audiophile-
standard 250W Class D amplifier the SA250 Mk2, the system keeps its cool
even when the music movie action is whipping up a storm.

 

Technical Specifications


Description
In wall subwoofer system with external rack-
mount amplifier
Driver units
2 x 200mm (8 in) Paper/Aramid Fibre 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 (minimum 6.3)
Dimensions Height: 494mm (19.5 in)
Width: 264mm (10.4 in)
Cut-out size
Height: 485mm (19 in)
Width: 255 (10 in)

Net Weight
6.4kg (14.1lb)
Finish Frame/Grille
Semi-matt white suitable for customising
or pre-painting

Accessories Pre-mount kit for new construction
Back Box

BB ISW4

Box
Height: 1406mm (55.4 in)
Width: 345mm (13.6 in)

Depth: 85mm (3.4 in
Net Wight

9.6kg (21.2lb)

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 35220947888

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4.8 ★★★★★
Based on 21 reviews
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michele p.
Whiting, US
★★★★★ 5
Great product to keep moisture in
Size: M (up to size 9)-Beige
These are so cool. I was skeptical at first. After an at home pedicure I put lotion on and keep these on for about a few hours. The moisture retention, and comfort and fit or absolutely amazing!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2025
A
Verified Purchase
Amy
Alexandria, US
★★★★★ 5
These work!
Size: M (up to size 9)-Beige
I’ve had dry cracked feet my whole life. Tried these last night with lotion from Trader Joe’s and literally overnight my feet are the softest they’ve ever been. I put a pair of socks over them and went to sleep with them on. Hard to walk around with all that slippery-ness but worth it! 10/10✨👌
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 11, 2025
V
Verified Purchase
View from the hills
Cuba, US
★★★★★ 5
Enables the person to move around while wearing.
These silicon socks look a bit odd at first glance but they work great and best of all, any lotions and oily creams are contained on the inside so you can walk around. They are very soft. I haven't had them long so I can't comment on durability, but they are not made of lightweight material.
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Reviewed in the United States on March 10, 2026
T
Verified Purchase
Theresa C.
Lowell, US
★★★★★ 5
They Work
Husband struggles with cracking feet, he has tried so many home remedies these work great to keep the moisturizer on and the carpet dry!
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Reviewed in the United States on March 25, 2026
R
Verified Purchase
raymond jones
Massapequa, US
★★★★★ 1
Not worth the time or money
Never buy these, they causes feet cramps and bad pain even if you use foot pain cream
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Reviewed in the United States on April 30, 2026

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