Wilson Audio X-1/Grand Slamm series III, sebring blue they almost look black, not an upgrade. Original crates, packing, manual etc..The best of the best.
Description: Four-way, seven-drive-unit, floorstanding, reflex-loaded loudspeaker system. Drive-units: 1" (25mm), ferrofluid-cooled, inverted titanium-dome tweeter; two 6.5" (170mm) plastic-cone midrange units; 12" glass-fiber-reinforced pulp-cone upper woofer; 15" pulp-cone lower woofer; two rear-firing 1" metal-dome tweeters. Crossover frequencies: 120Hz, 3kHz, 12kHz (rear tweeters). Electrical crossover slopes: first-order, 6dB/octave woofer/midrange; second-order, 12dB/octave, midrange/tweeter. Frequency response: 19Hz-22kHz ±3dB. Low-frequency extension: 20Hz, -6dB. Sensitivity: 95dB/W/m (2.83V). Nominal impedance: 5 ohms. Amplifier requirements: 15-500W.
Dimensions: 72" (1830mm) H by 16.5" (420mm) W by 25" (635mm) D. Weight: >500 lbs each
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