Bowers & Wilkins DB4S Subwoofer
Give your home cinema set-up the bass impact it deserves with the Bowers & Wilkins DB4S – a powerful, classically styled single-driver subwoofer that’s a perfect match for the 700 Series.
![DB4S - Nimble and powerful DB4S - Nimble and powerful](https://www.bowerswilkins.com/on/demandware.static/-/Sites-master-catalog-soundunited/default/dw1a6891cb/bowers/Rich-Content/bw_subwoofer_db4s_nimble.jpg)
Nimble and powerful
Solid, dramatic bass is delivered through the rigidity and lightness of the uniquely-shaped, variable thickness Aerofoil™ cone.
Powerful amplification
Thanks to 1000 watts of digital amplification, DB4S delivers all the precision, control and authority you could ask for.
![DB4S - Powerful amplification DB4S - Powerful amplification](https://www.bowerswilkins.com/on/demandware.static/-/Sites-master-catalog-soundunited/default/dwc6a2a3c4/bowers/Rich-Content/bw_subwoofer_db4s_powerful.jpg)
![DB4S - Digital preamplifier DB4S - Digital preamplifier](https://www.bowerswilkins.com/on/demandware.static/-/Sites-master-catalog-soundunited/default/dw5724e2d5/bowers/Rich-Content/bw_subwoofer_db4s_digitalpreamplifier.jpg)
Digital preamplifier
DB4S uses a digital preamplifier featuring Dynamic EQ, for optimised audio performance across the available frequency range.
Control App
Adjust calibration and correction easily using DB4S’s dedicated smartphone app.
![DB4S - Control App DB4S - Control App](https://www.bowerswilkins.com/on/demandware.static/-/Sites-master-catalog-soundunited/default/dw36c85a75/bowers/Rich-Content/bw_subwoofer_db4s_controlapp.jpg)