Bowers and Wilkins Speaker 686

100% original and authentic from B&W manufacturer Excellent condition like new , working perfectly and all top model Specifications: Frequency Response: 55Hz to 20 kHz +- 2dB Low Frequency System: Closed box acoustic suspension with system resonance of 49Hz Dispersion: Vertical: ± 1dB over 10 degrees of center window Horizontal: +0, -3dB over 60 degrees of center window, 20Hz to 13kHz Drive Units: Vertical in-line configuration corrected for minimum inter-unit time delay Computer matched in pairs ensuring accuracy typically better than 0.25dB Bass Drivers (2): Diaphragm: 6.5” Thermos plastic cone with PVA compound coating Ultra long throw suspension Voice Coil: 38mm D high temperature Nomex Magnet System: 2.25kg, ceramic Midrange Driver: Diaphragm: 4” D aromatic polyamide fiber matrix cone, critically formed and PVA impregnated following a laser interferometry computer-linked pattern Voice Coil: 25mm phenolic bonded and aluminum lined Magnet System: Ceramic High-Frequency Driver: Diaphragm: 1” multi filament polyester weave dome, mechanically dampened Voice Coil: 1” high temperatures epoxy impregnated Magnet System: High energy nickel cobalt, center pole Impedance: 8 ohms nominal throughout entire operating range Sensitivity: 1W into 8 ohm load for a spl of 85dB at 1m, sinewave input at 300Hz Power Limit: Minimum 80W into 8 ohms No upper limit because of overload protection device Dimensions: Height 41" x Width 11 ¾” x Depth 14 ½” Weight: 72 lbs Power Limit: Minimum 100W into 8 ohms - a peak of 500 No upper limit because of overload protection deviceShow less