Bowers & Wilkins ISW-4

No, the ISW-4 is a passive subwoofer, meaning it does not have a built-in amplifier. You will need to pair it with a separate, dedicated amplifier—ideally one capable of handling its 200W power requirement—to drive the unit.

Yes, the ISW-4 is specifically designed to fit into standard wall cavities. You will need to ensure your wall space accommodates the cut-out dimensions of 19.9 inches by 10 inches.

Thanks to its dual 8-inch long-throw drivers, the ISW-4 delivers surprisingly deep and impactful bass that rivals many standalone subwoofers. While it won't take up any floor space, it is engineered to move significant air, providing the low-frequency extension needed for both music and home theater.

Because this is an in-wall unit that requires cutting into your wall and wiring to a separate amplifier, professional installation is highly recommended. This ensures the unit is properly secured, the wall is reinforced if necessary, and the wiring is correctly integrated into your existing audio system.

While it is primarily designed for home theater applications, you can certainly integrate it into a multi-room system. Just ensure your amplifier setup can handle the subwoofer's 8-ohm impedance and power demands across the zones you intend to cover.