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Overview

Bowers & Wilkins DB4S – 10-Inch 1000W Powered Subwoofer

The Bowers & Wilkins DB4S is a high-performance 10-inch powered subwoofer designed to deliver deep, accurate bass for premium stereo systems and home theaters. Combining a 1000-watt Class D Hypex amplifier, Aerofoil cone technology, and advanced digital signal processing, the DB4S delivers exceptional low-frequency authority from a compact, elegantly finished enclosure.

Engineered as a natural companion to the Bowers & Wilkins 700 Series loudspeakers, the DB4S incorporates a rigid, variable-thickness Aerofoil bass driver derived from technology developed for the 800 Series Diamond. Its sealed-box construction, Dynamic EQ, and app-based calibration provide controlled bass reproduction for both music and cinematic soundtracks.

Key Features

  • 10-Inch Aerofoil Cone Driver: A 250mm bass driver with a variable-thickness cone engineered for rigidity, low distortion, and precise bass reproduction.

  • 1000-Watt Class D Hypex Amplifier: Powerful digital amplification delivers dynamic impact and controlled low-frequency performance.

  • Sealed-Box Design: A rigid, closed enclosure supports accurate transient response and articulate bass.

  • Deep Bass Extension: Frequency response reaches 10Hz at -3dB, with a specified frequency range extending to 8.5Hz at -6dB.

  • Dynamic EQ: Digital signal processing optimizes bass performance throughout the operating frequency range.

  • App-Based Room Calibration: Adjust setup, calibration, and correction through the dedicated Bowers & Wilkins subwoofer app.

  • Bluetooth Low Energy Control: Wireless configuration and adjustment from a compatible smartphone.

  • Flexible Connectivity: Balanced XLR and RCA inputs, 12V triggers, and RS-232 control for integration into sophisticated audio systems.

  • Premium Cabinet Finishes: Available in Gloss Black, Satin White, and Rosenut.

Technical Specifications

Specification

Details

Model

DB4S

Product Type

Active sealed-box powered subwoofer

Driver

1 × 10-inch (250mm) Aerofoil cone

Amplifier

1000W Class D Hypex

Maximum Power Output

1000 watts

Frequency Response

10Hz–350Hz (-3dB, referenced to 100Hz)

Frequency Range

8.5Hz–500Hz (-6dB)

Digital Processing

Digital preamplifier with Dynamic EQ

Room Optimization

App-based calibration and correction

Wireless Control

Bluetooth Low Energy

Audio Inputs

2 × balanced XLR, 2 × RCA

Trigger Inputs

2 × 3.5mm 12V triggers

Control Interface

RS-232, 9-pin D connector

RCA Input Impedance

10 kΩ

XLR Input Impedance

20 kΩ

Signal-to-Noise Ratio

82dB

Height

14.8 in (377mm), including feet

Width

14.1 in (360mm)

Depth

14.5 in (368mm)

Weight

57.3 lbs (26kg)

Cabinet Finishes

Gloss Black, Satin White, Rosenut

Grille Finishes

Black; Grey with Satin White

Precision Bass for Music and Home Theater

The DB4S brings substantial low-frequency capability to high-end listening rooms without the footprint of a larger subwoofer. Its Aerofoil driver combines stiffness and low mass to reproduce bass transients with accuracy, while the sealed cabinet helps maintain definition during demanding musical passages.

For home theater applications, its 1000-watt amplifier provides the dynamic headroom required for powerful cinematic effects. Dynamic EQ and app-based calibration allow the DB4S to be tailored to the room and integrated with floorstanding, bookshelf, or surround sound speaker systems.

Experience Bowers & Wilkins at The Grid HiFi

The Grid HiFi specializes in high-performance stereo systems, luxury home theater design, and precision subwoofer integration. Our Houston showroom provides expert guidance on selecting and matching Bowers & Wilkins loudspeakers and subwoofers.

Considering the Bowers & Wilkins DB4S? Our audio specialists can help you select the ideal subwoofer configuration for your listening space.

Call (713) 218-8120 for personalized system recommendations.

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FAQs

Please read our FAQs page to find out more.

Do you price match?

Yes. We match any authorised dealer, including big-box retailers. If you find the same product at a lower price, contact us and we'll match it.

Do you offer free shipping?

Yes — free shipping on every order, with 2-day delivery available on most products. Easy returns and exchanges are included.

Where is your showroom?

We're at 6362 Alder Drive, Houston, Texas. The showroom lets you hear and compare reference-level systems in person before making any decisions. If you're considering a larger purchase or installation, it's well worth the visit.

Can I buy online without visiting the showroom?

Yes. The full product range is available through the online store with free nationwide shipping. For more complex system builds, speaking with one of our advisers first tends to lead to a better result.

Do you offer financing?

Yes. Special financing is available through the BrandSource Credit Card for qualifying purchases, allowing you to spread payments over time with no annual fee. Promotional rebate savings are also available periodically. See the financing page for full details.

Do you install systems as well as sell equipment?

Yes — installation is central to what we do. We design and install whole-home audio and video, home theaters, media rooms, outdoor audio, lighting and motorised shades, and full smart home automation.

Do you provide support after installation?

Yes. We provide ongoing service and support to ensure systems continue performing as intended — not just on installation day, but over the long term.