Bowers & Wilkins 683, 600 owner manual 684

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Technical features	Nautilus™ tube-loaded aluminium dome tweeter
	Kevlar® brand fibre cone bass/midrange
	Kevlar® brand fibre cone bass driver
	Flowport™
Description	2.5-way vented-box system
Drive units	1x ø25mm (1 in) aluminium dome high-frequency
	1x ø165mm (6.5 in) woven Kevlar® cone bass/midrange
	1x ø165mm (6.5 in) woven Kevlar® cone bass
Frequency range	-6dB at 34Hz and 50kHz
Frequency response	44Hz - 22kHz ±3dB on reference axis
Dispersion	Within 2dB of reference response
	Horizontal: over 60° arc
	Vertical:	over 10° arc
Sensitivity	90dB spl (2.83V, 1m)
Harmonic distortion	2nd and 3rd harmonics (90dB, 1m)
	<1% 90Hz - 22kHz
	<0.5% 120Hz - 20kHz
Nominal impedance	8Ω (minimum 3.0Ω)
Crossover frequency	150Hz, 4kHz
Recommended amplifier power	25W - 150W into 8Ω on unclipped programme
Max. recommended cable impedance	0.1Ω
Dimensions	Height:	910mm (35.8 in) (not including plinth or feet)
	Width:	198mm (7.8 in)
	Depth: 300mm (11.8 in) (including grille and terminals)
Net weight	18.2kg (40.1 lb)

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