Bowers & Wilkins DB4S Active Subwoofer
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.
DB4S' single driver features an aerofoil cone design – the same technology used in our flagship 800 Series Diamond speakers – for flawlessly accurate and articulate bass performance.
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 optimised audio performance across the available frequency range.
Adjust calibration and correction easily using DB4S' dedicated smartphone app.
1000W Class D Hypex amplifier
Aerofoil bass cone
Digital preamplifier with Dynamic EQ
App-based set-up and BT-LE control
Description 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)
Grey (Satin White only)