Maximum power, W: 180 Power consumption, W: 90 Impedance Ohm: 4 Frequency response Hz: 45 ÷ 21k Sensitivity dB SPL: 93 Voice coil, mm (in): 25 (1.0 Woofer size, mm (in): (6.0 x 9.0) Tweeter size, mm (in): 60 (2.5)