Bowers & Wilkins 803 D4 Floor-standing speaker

Technical features
Diamond tweeter
Solid body Tweeter-on-Top
Continuum^™ cone FST
Anti-Resonance plug
Biomimetic Suspension
Turbine^™ Head
Matrix^™
Aerofoil^™ cone bass units
Flowport

Description
3-way vented-box system

Drive units
1x ø25mm (1in) diamond dome high-frequency
1x ø130mm (5in) Continuum cone FST midrange
2x ø180mm (7in) Aerofoil cone bass units

Frequency range
16Hz to 35kHz

Frequency response
19Hz to 28kHz (+/-3dB from reference axis)

Sensitivity
90dB (on axis at 2.83Vrms at 1m)

Harmonic distortion 
2nd and 3rd harmonics (90dB,1m on axis)
<1% 80Hz – 20kHz
<0.3% 100Hz – 20kHz

Nominal impedance
8Ω (minimum 3.0Ω)

Recommended amplifier power
50W – 500W into 8Ω on unclipped programme

Max. recommended cable impedance
0.1Ω

Dimensions
Height: 1165mm
Width: 357mm
Depth: 511mm

Net weight
62.15kg (1)

Finishes
Cabinet:
Gloss Black