Bowers & Wilkins Nautilus 800 Series Owner's Manual And Warranty page 7

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
36
Nautilus TM 800
Nautilus TM tweeter
Nautilus TM head
Kevlar ® brand fibre cone FST midrange
Matrix cabinet
Flowport
3-way vented-box system
1x ø25mm (1 in) metal dome high-frequency
1x ø150mm (6in) woven Kevlar
2x ø250mm (10 in) paper/Kevlar
-6dB at 25Hz and 50kHz
-3dB at 32Hz and 42kHz
37Hz - 23kHz ±2dB on reference axis
Within 2dB of response on reference axis
Horizontal: over 60º arc
Vertical: over 10º arc
91dB spl (2.83V, 1m)
2nd and 3rd harmonics (90dB, 1m)
<1.0% 45Hz - 20kHz
<0.5% 50Hz - 20kHz
8Ω (minimum 3.0Ω)
350Hz and 4kHz
50W – 1000W into 8Ω on unclipped programme
0.1Ω
Height: 1197mm (47.1 in)
Width: 450mm (17.7 in)
Depth: 645mm (25.4 in)
125kg (275 lb)
® cone FST midrange
® cone bass