KEF

Bowers & Wilkins

Refrence 8B Subwoofer

703 S3

Home Theatre Speaker Specification

Home Theatre Speaker Specification

Dynamic

Dynamic

2 X 225 mm

25/480 mm

NA

8 ohm

NA

90dB spl

Variable Frequency 40Hz - 160Hz
Frequency Range Free Field ( -6dB ): 18Hz
Frequency Response : ( ±3dB )24Hz At 90dB Output In Free-Space Mode

46 Hz - 28 kHz, 30 Hz - 33 kHz

AC 100V - 120V / 220V - 240V ~50/60Hz

AC 100V-240 V / 50 Hz / 60 Hz

2 X 500 W ( RMS ) Class D
Internal Volume 23L

30 W - 200 W ( RMS )

110dB

90 dB

NA

No

No

34 Kg

28.8 Kg

Speaker : 398 mm X 365 mm X 429 mm

1010 mm X 316 mm X 192 mm

Black

Black, White, Brown

KEF Reference 8B Subwoofer
Power Cable
Product Manual

Bowers & Wilkins 703 S3 Speaker

LF Drive Unit : Equipped with 2 x 225 mm (9in.) low-frequency drive units, the subwoofer delivers powerful and impactful bass.
Maximum Output : Capable of reaching a maximum output of 110dB at 1m and 50Hz, providing a dynamic and immersive bass experience.
Low Pass Filter : Features a variable low pass filter with a frequency range from 40Hz to 160Hz, allowing users to customize the crossover point.
Frequency Response : The frequency response at 90dB output in free-space mode is ±3dB from 24Hz, ensuring accurate and balanced bass reproduction.
Amplifier : Powered by 2 x 500W Class D amplifiers with a switched mode power supply and DSP-based control section, delivering efficient and controlled power.
Inputs & Connectivity: Provides versatile connectivity options with analog XLR socket, speaker level inputs, and a link out via RCA phono socket. The subwoofer’s net internal volume is 23L.

3-Way Vented-Box System.
A house for high frequencies.
5-Year warranty Valid from the date of purchase for passive loudspeakers.
Technical Features - Decoupled Carbon Dome Tweeter, Solid Body Tweeter-On-Top, Continuumâ„¢ Cone FSTâ„¢ Midrange, Decoupled Midrange, Aerofoilâ„¢ Profile Bass Cones, Flowportâ„¢.
Its new Tweeter-on-Top configuration and the revolutionary Biomimetic Suspension in its decoupled midrange drive unit combine to raise the 703 S3 to all-new heights of performance.
Developed using advanced computer modelling techniques, the Aerofoil™ Profile bass cone has variable thickness, providing stiffness and rigidity where it’s needed most. The result: deep and dynamic bass.
Carbon Dome tweeters are purpose-built for the 700 Series. Delivering a dramatic improvement on the aluminum double dome tweeter, they raise the breakup threshold to 47kHz, for pinpoint imaging accuracy and detail.