B&W (BOWERS & WILKINS) NAUTILUS 801 SPEAKERS. Description: Three-way, reflex-loaded dynamic loudspeaker. Drive-units: 1" (25mm) metal-dome tweeter, 6" (150mm) woven-Kevlar-cone midrange unit, 15" (380mm) paper/Kevlar-cone woofer. Crossover frequencies: 350Hz, 4kHz. Crossover type: third-order. Frequency response: 32Hz-22kHz, ±3dB. Sensitivity: 91dB/2.83V/1m. Nominal impedance: 8 ohms (3 ohms minimum). Recommended amplifier power: 50-1000W. Maximum recommended cable impedance: 0.2 ohms.
Dimensions: 43.7" (1110mm) H by 20.6" (522mm) W by 27.2" (690mm) D. Net weight: 229 lbs (104kg).