Bowers & Wilkins DB4S Subwoofer


Trade-in available

DB4S is the preferred subwoofer for the 700 Series range, by Bowers & Wilkins.

Give your home cinema set-up the bass impact it deserves with this powerful, classically styled single-driver subwoofer that’s a perfect match for all 700 Series loudspeakers.




Get bass you can really feel with a mighty 1000W of digital amplification, the DB4S subwoofer delivers all the visceral rumble and punch you might need to bring any movie or TV show to life.

Solid, dramatic bass is delivered through the rigidity and lightness of the uniquely-shaped variable thickness Aerofoil™ cone, that is nimble yet extremely powerful.

DB4S uses a digital preamplifier featuring Dynamic EQ, for optimised audio performance across the available frequency range.

Using the dedicated smartphone control app, you can adjust calibration and correction on the DB4S quickly and easily, from anywhere in the space.


  • 1000W Class D Hypex amplifier
  • Aerofoil™ bass cone
  • Digital preamplifier with Dynamic EQ
  • App-based set-up and BT-LE control


  • Model: DB4S
  • Description: Active closed-box subwoofer system
  • Drive units: 1x 250mm (10 in) Aerofoil™ cone bass
  • Frequency range: -6dB at 8.5Hz and 500Hz
  • Frequency response: 10Hz–350Hz -3dB (centred on level at 100Hz)
  • Max power output: 1000W
  • Rated power consumption at 1/8th of rated power: 195W
  • Standby power consumption: <0.5W
  • Inputs: 2x RCA, 2x XLR
  • Input impedance: RCA: 10 kOhm, XLR: 20 kOhm
  • Signal to noise ratio: 82 dB
  • Dimensions: Height: 377mm (14.8 in) including feet / Width: 360mm (14.1 in) / Depth: 368mm (14.5 in).
  • Net weight: 26kg (57.3 lb)
  • Cabinet finishes: Gloss Black, Satin White, Rosenut
  • Grille finishes: Black (on Gloss Black & Rosenut), Grey (on Satin White only)

More Information


Bowers & Wilkins

Bowers & Wilkins (B&W) is now a very large company, with distribution chains and customers all over the world. However it began in 1966 with John Bowers hand-assembling speaker systems for local clients in Worthing, West Sussex, in the back of the electrical store that he ran with his friend Roy Wilkins.

Five decades later the company is a global leader in sound, and in 2016 Bowers & Wilkins were incredibly proud to celebrate their 50th anniversary – and even more proud that the ethos, passion and drive of its founder is still a vital element in its continuing success.

Bowers & Wilkins | Unilet Sound & Vision

Additional information

Weight 26 kg
Dimensions 36.8 × 36.0 × 37.7 cm

Gloss Black, Rosenut, Satin White

Purchase Options

Click & Collect, Trade-In Available


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