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. For bass you can feel With a mighty 1000 watts of digital amplification, DB4S delivers all the visceral rumble and punch you need to bring cinema sound to life. 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 1000w of digital amplification, DB4S delivers all the precision, control and authority you could ask for. 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 dedicated smartphone app. SPECIFICATIONS Dimensions Height 377mm (14.8 in) including feet Width 360mm (14.1 in) Depth 368mm (14.5 in) Net weight 26kg (57.3 lb) Technical features 1000W Class D Hypex amplifier 1x ø250mm (10 in) Aerofoil™ cone bass Digital preamplifier with Dynamic EQ App-based set-up and BT-LE control Description Active closed-box subwoofer system Drive units 1x ø250mm (10 in) Aerofoil™ cone bass Frequency range -6dB at 8.5Hz - 500Hz Frequency response 10Hz - 350 Hz -3dB (centered on level at 100Hz) Power consumption 1/8th of rated power 195W Standby <0.5W Max Power output 1000W Inputs 2 x XLR 2 x RCA 2 x 3.5mm 12V trigger RS-232 - 9-pin D connector Input impedance RCA: 10 kOhm XLR: 20 kOhm Signal / Noise 82 dB Cabinet finishes Gloss Black Satin White Rosenut Grille finishes Black Grey Black