Bowers & Wilkins 700-DB4S


Give your home cinema set-up the bass impact it deserves with DB4S – a powerful, classically styled single driver subwoofer that’s a perfect match for the 700 Series.

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

Thanks to 1000w of digital amplification, DB4S delivers all the precision, control and authority you could ask for.

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

Adjust calibration and correction easily using DB4S dedicated smartphone app.


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Technical features:

1000W Class D Hypex amplifier

Aerofoil™ bass cone

Digital preamplifier with Dynamic EQ

App-based set-up and BT-LE control


Active closed-box subwoofer system

Drive units:    1x ø250mm (10in) 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:    2 x RCA/2 x XLR

Input impedance:    RCA: 10 kOhm/XLR: 20 kOhm

Signal to noise ratio:    82 dB


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