Bowers & Wilkins Loudspeaker Signature 805 Owner's Manual & Warranty page 32

Technical Features
Description
Drive units
Frequency range
Frequency response
Dispersion
Sensitivity
Harmonic distortion
Nominal impedance
Crossover frequencies
Power handling
Max. recommended cable impedance
Dimensions
Net Weight
32
Signature 805
Free-mounted Nautilus™ tweeter
Kevlar® brand fibre cone bass/midrange
Flowport
2-way vented-box system
1x ø25mm (1 in) alloy dome high-frequency
1x ø165mm (6.5 in) woven Kevlar® cone bass/midrange
-6dB at 42Hz and 50kHz
-3dB at 49Hz and 25kHz
56Hz – 20kHz ±2dB on reference axis
Within 2dB of reference response
Horizontal: over 40˚ arc
Vertical: over 10˚ arc
88dB spl (2.83V, 1m)
2nd and 3rd harmonics (90dB, 1m)
<1.0% 90Hz – 20kHz
<0.5% 150Hz – 18kHz
8Ω (minimum 4.6Ω)
4kHz
50W – 120W into 8Ω on unclipped programme
0.1Ω
Height: 415mm (16.3 in)
Width: 238mm (9.4 in)
Depth: 344mm (13.5 in)
9.5 kg (21 lb)