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Bowers & Wilkins DB4S 10" 1000W Active Subwoofer

On request
From $2,799
Special Order

A perfect match for the 700 Series

With a mighty 1000W of digital amplification up its sleeve, the DB4S delivers all the visceral rumble and punch you need to bring cinema sound to life.

Enhance the bass

Powered by a mighty 1000W of digital amplification, and featuring the same Aerofoil™ cone drive unit technology found in the 800 Series Diamond, the DB4S delivers unrivaled precision, control, and authority. It’s the perfect partner for 700 Series speakers in a home audio set-up.

Give your home cinema set-up the bass impact it deserves with DB4S.

Key Features:
- 10" Aerofoil bass cone
- 1000W Class D Hypex amplifier
- Active closed-box subwoofer system
- Digital preamplifier with Dynamic EQ
- App-based set-up and BT-LE control
- Frequency range: -6dB at 8.5Hz and 500Hz
- RCA & XLR inputs
- Stylish, removable grilles
- Beautiful finish matches the 700 S2 Series loudspeakers perfectly

User Manual (PDF, 4.4MB)


For bass you can feel

With a mighty 1000W of digital amplification, the 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 optimized audio performance across the available frequency range. 

Control app

Adjust calibration and correction easily using DB4S dedicated smartphone app.


Designed to perfectly match the rest of the new 700 S2 Series range

The DB4S subwoofer is finished in beautiful gloss black finish designed to match perfectly with the rest of the new 700 S2 Series loudspeakers, which means adding a subwoofer won't look out of place.

Studio sound comes home - Introducing Bowers & Wilkins' new 700 Series.

Bring the breathtaking clarity and definition of studio sound home with the new 700 Series. Replacing the CM Series, the range combines studio-grade 800 Series Diamond technologies with purpose-built innovations to elevate home audio to an entirely new level. And all this from room-friendly cabinets designed to fit beautifully into your home environment.

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, Bowers & Wilkins has 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.

The new 700 Series. Inspired by recording studios. Made for living rooms.

You can hear the engineering excellence and passion, and that is why Bowers & Wilkins' speakers are used in leading recording studios around the world, such as the legendary Abbey Road Studios, due to the accuracy they provide. Bowers & Wilkins is a global leader in bringing music and sound to your ears - and your experience - the way it was meant to be heard.

A great speaker does more than allow you to hear music. It acts as a bridge - a way to close the divide between listener and performance. Listen to 700 Series speakers, and music feels alive. You discover details you never noticed before. You can place every instrument, every note, every intake of breath, with flawless accuracy. You can sense the emotion in the room. Suddenly, you're no longer just listening to a recorded performance. You're right there, with the performer in the studio.

More Information
Model Number DBS4
RRP 2,799.00

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

Rated power consumption at 1/8th of rated power

Standby power consumption

2 x RCA
2 x XLR

Input impedance
RCA: 10 kOhm
XLR: 20 kOhm

Signal to noise ratio
82 dB

Height 377mm including feet
Width 360mm
Depth 368mm

Net weight

Cabinet finishes
Gloss Black
Satin White

Grille finishes
Grey (White only)

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12 Months
All of our products include a minimum 12 month Australian warranty.

If you experience any issues with this product please don't hesitate to contact us.
How much does delivery cost?
Nothing! We offer free post on all orders to anywhere within the Australian mainland and Tasmania.

Can I pick up my purchase from your store?
Yes. You can usually pick up your order from one of our stores. We recommend that you contact us first to ensure your order is ready for collection.

What happens if I'm not happy with my product when it arrives?
We offer a 30 day 100% satisfaction guarantee on all of our products! If your order arrives damaged, faulty or not quite as you expected, please contact us and we will do everything we can to fix the situation.

Please visit our FAQ page for answers to other frequently asked questions or contact us if you have any other questions or comments.