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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
Active closed-box subwoofer system
1x ø250mm (10in) Aerofoil™ cone bass
-6dB at 8.5Hz and 500Hz
10Hz – 350Hz -3dB (centred on level at 100Hz)
Max power output
Rated power consumption at 1/8th of rated power
Standby power consumption
2 x RCA
2 x XLR
RCA: 10 kOhm
XLR: 20 kOhm
Signal to noise ratio
Height 377mm (14.8 in) including feet
Width 360mm (14.1 in)
Depth 368mm (14.5 in)
26kg (57.3 lb)