B&W DB4S Subwoofer (Gloss Black)

Despatched In 1 - 2 days

Scale & Finesse Combined In A Subwoofer That's Got Brains & Brawn

1000 Watt Class D Hypex Amplifier, 254mm Aerofoil Bass Cone

Digital Preamplifier With Dynamic EQ, Smartphone App For Easy Setup

Give your Home Cinema set-up the bass impact it deserves with the B&W DB4S – a powerful, classically styled single driver subwoofer that's a perfect match for the B&W 700 Series loudspeakers.


Providing the ideal balance of high-performance acoustics and living room-friendly dimensions, B&W's 700 Series speakers are a superlative choice for home cinema sound. Pair them with one of the two centre-channel speakers in the range and the powerful DB4S subwoofer, and you're set for a truly transformational movie experience.

The DB4S is a 254mm (10") sealed subwoofer based on the technology of its bigger brother dual driver designs (DB1D, DB2D, & DB3D models). The DB4S shares its drive unit technology, amplification, and preamp section with the dual-driver DB2D. It has a single 254mm (10") Carbon Aerofoil driver in a forward-firing configuration powered by a 1000 Watt Hypex Class D amplifier and a digital preamp section with Dynamic EQ. It offers an App-based configuration system which is very handy for those wanting to fine tune the performance of their subs using their smartphone or tablet.

Armed with all this technology the DB4S cannot fail to impress and indeed delivers unrivalled precision, control and authority at this price point. It's the perfect partner for B&W 700 Series speakers in a home audio set-up.


The 700 Series is an entirely new range of speakers. Compared with the outgoing CM Series, every transducer has changed and radically improved. To do this, B&W have borrowed some of the most advanced technologies from their flagship 800 Series Diamond, adapting them to suit a more attainable price point. And they've introduced entirely new technologies, designed specifically for this range.

Aerofoil Cone:The DB4S' Aerofoil Profile driver features a ground breaking cone design that has the same variable thickness design as used in Bowers Wilkins flagship 800 Series Diamond speakers. Developed using advanced computer modelling techniques, it provides stiffness and rigidity where it's needed most, for deep and dynamic bass. So, if you want flawlessly accurate and articulate bass performance, look no further.

Powerful Amplification: Thanks to the amazing 1000 Watt Class D Hypex amplifier doing all the heavy lifting, the DB4S delivers all the precision, control and authority you could ask for.

Digital Preamplifier: And just to show this subwoofer isn't just about 1000 Watts of brawn, it also has a pretty handy brain to go with it. The DB4S uses a very smart digital preamplifier featuring Dynamic EQ allowing for optimised audio performance across the available frequency range.

Control App: Don't want to get out of your comfy seat to adjust your DB4S? Have no fear, the B&W Control App is here. This very handy Smartphone App allows you to adjust calibration and correction easily from your listening seat. Yes please.

In The News

In leading recording studios, music that will soon be heard everywhere is heard first through Bowers & Wilkins speakers. Bowers & Wilkins speakers are the only speakers I have found that enable me to accurately listen to how the original performance has been recorded.

Peter Cobbin, producer and sound engineer. Recent feature film work includes Rogue One: A Star Wars Story, Doctor Strange and Alien: Covenant.

Main Features & Specifications

  • Design: Active closed-box subwoofer system
  • Amplifier: 1000 Watts Class D Hypex amplifier
  • Drive Unit: 1x 254mm (10") Aerofoil cone bass
  • Pre-Amplifier: Digital preamplifier with Dynamic EQ
  • Set-Up: App-based set-up and BT-LE control
  • Frequency Range: -6dB at 8.5Hz and 500Hz 10Hz – 350Hz -3dB (centred on level at 100Hz)
  • Rated Power Consumption at 1/8th of Rated Power: 195 Watts
  • Standby Power Consumption: 0.5 Watt
  • Inputs: 2 x RCA; 2 x XLR
  • Input Impedance: RCA: 10 kOhm; XLR: 20 kOhm 82dB
  • Finishes: Gloss Black/Black Grille;Rosenut/Black Grille; Satin White/Grey Grille
  • Dimensions (WxHxD): 360 x 377 x 368mm including feet
  • Weight: 26kg
  • Manufacturer's Warranty: 3 Years

Note:Features & Specifications Subject To Change Without Notice. E&OE.

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