Type: 3-way bass-reflex floorstanding loudspeaker Drivers: 2x 6½" (16.5cm) Slatefiber Woofer, 6½" (16.5cm) Slatefiber Midbass Wood, 1" (25mm) TNF Al/Mg inverted dome tweeter Sensitivity (2,83V/1m): 91 dB Frequency response (±3dB): 48 Hz - 28 kHz Low frequency point (-6dB): 39 Hz Nominal impedance: 8Ω Minimum impedance: 2.9Ω Recommanded amplifier power: 40 - 250 W Crossover frequency: 270 Hz - 2700 Hz