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Bowers & Wilkins ISW-4 In-wall Subwoofer System

This ISW-4 In-Wall Subwoofer System consists of the ISW-4 In-wall Subwoofer, a SA250 MK2 Subwoofer Amplifier and a BB-ISW4 Back Box.

Special order item 7-10 days
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IMS-4 In-Wall Subwoofer

Their range of in ceiling, in-wall and outdoor speakers follow this design philosophy and often incorporate truly innovative quirks and features

The ISW-4 is one of Bowers & Wilkins most innovative products and enables the home audio or music enthusiast to experience a liquid, audiophile standard of bass response, while also having the luxury of not having to see where it comes from. It's an in-wall subwoofer, that features two large, long-throw 200mm drivers, capable of moving large volumes of air at an outstanding speed, allowing for a deep and controlled low-frequency output.

The ISW-4 required its dedicated 250W Class D amplifier in order to work, this is called the SA250 Mk2, and together, the units produce an outstanding level of immersive low-frequency sound.

SA250 MK2 Subwoofer Amplifier

The SA250 Mk 2 is a rack-mountable Class D amplifier, designed specifically to power and enhance Bowers & Wilkins' in-wall subwoofer models. This subwoofer is required when using either the ISW-4 or ISW-3 in-wall subs and will provide them with an incredibly powerful, yet stable response, allowing these subwoofers to reproduce bass to a superlative level of accuracy and control.

The SA250 Mk 2 can power two in-wall subwoofers at once.

BB ISW-4 Back Box for ISW-4

The backbox is designed to increase the sound insulation to adjoining rooms, while also providing the fire safety barrier sometimes required by building regulations in order to prevent fires in the wall cavity from spreading into the room. Specifically designed for use with ISW-4 in-wall subwoofer.

When used in solid construction, the back box will define an appropriate working volume for the speaker which may need to extend beyond the boundaries of the wall frame.

Please read before purchase: Please consult your builder or contractor before purchasing, and ensure that the dimensions specified are suitable for the loudspeaker application.

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Description In wall subwoofer system with external rackmount amplifier
Drive units 2 x 200mm (8 in) Paper/Kevlar® cone
Frequency range -6dB at 17Hz and 290Hz adjustable (EQ at A)
Bass extension -6dB at 17Hz (position A)
-6dB at 21Hz (position B)
-6dB at 24Hz (position C)
Power Handling 200W 8Ω (minimum 6.3Ω)
Dimensions Height: 494mm (19.5 in)
Width: 264mm (10.4 in)
Depth: 99mm (3.9 in)
Depth with grille: 114mm (4.5 in)
Net weight 6.4kg (14.1lb)

SA250 MK2 Subwoofer Amplifier

Description 250W rack-mount amplifier with built-in subwoofer equalisation
Amplifier Inputs 2x RCA Phono socket, line in
2x RCA Phono socket, link out
1x XLR socket, line in
1x XLR socket, link out
3.5mm jack - 12V trigger on/standby (overrides manual standby setting)
3.5mm jack - 12V trigger equalisation movie/music
Amplifier outputs 1x Neutrik® Speakon® 4-pole speaker socket
2x pairs of Binding Posts
Amplifier power output 250W
Input impedance 33kΩ
Signal / noise >80dB
Rated power consumption 95W – 1/8 full power
30W - Idling
Dimensions Height: 100mm (3.9 in) [88.5mm (3.5 in) plus feet]
Width: 430mm (16.9 in)
Depth: 322mm (12.7 in) Front panel Height: 2U 88.1mm/3.5 in
Net weight 5.4kg (11.9 lb)
Finish Black