From Bowers and Wilkins:
B&W's Tweeter on top technology ensures that the sound remains focused
and time-sensitive and that the stereo image is presented with unparalleled
three dimensional accuracy.
Kevlar®: B&W developed and patented the method of using Kevlar® for
loudspeaker cones to reduce unwanted standing waves.
Description - 3-way 4th-order vented-box system
Drive Units:
1 x 25mm (1in) alloy dome - high frequency
1 x 165mm (6.5in) kevlar® - bass / midrange
1 x 165mm (6.5in) Cobex bass
Frequency Response: 40Hz - 20kHz ± 3dB on reference axis
Sensitivity: 90dB spl (2.83V 1m)
Nominal Impedance: 8 ohms (minimum 4 ohms)
Power Handling: 30 - 150W into 8 ohms on unclipped programme
Dimensions: Height: 950mm Width: 220mm Depth: 290mm
Net Weight: 18.5 kg
Cabinet: Real Cherry Wood Veneer - Grille: Black Cloth