Sonus Faber Concerto Grand Piano Home 2.5-way, floorstanding loudspeaker: Drive-units: ¾" silk-dome tweeter, 7" acrylic-treated paper-cone woofer, 7" acrylate/"carbonium"-cone passive radiator. Crossover Frequency: 2.3kHz. Frequency response: 40Hz-20kHz, ±3dB. Impedance: 8 ohms nominal. Sensitivity: 87dB/1W/1m. Power requirements: 30-200W. black Pret 1600EUR
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http://www.ultimateavmag.com/speakersystems/26/index.html