Tweeter / Woofer Nominal Impedance 6/8 Ohms Recom. frequency range 40-25000 Hz Short term max. power 220/250 W Long term max. power 90/80 W Sensitivity (1W / 1m) 88.5 / 87 dB Voice Coil Diameter 26/39 mm Voice coil height 1.5 / 12 mm Air gap height 2.0 / 6.0 mm Linear coil travel (pp) 0.5 / 6.0 mm Max. coil travel (pp) - / 20 mm Magnet weight - / 0.64 Kg Total weight Kg Voice coil resistance 4.8 / 6.1 Ohms Voice coil Inductance 0.05 / 0.7 mH Force factor 2.3 / 7.5 N / A Free air resonance 1200/29 Hz Moving weight 0.3 / 13.6 g Suspension compliance - / 2.38 mm / N Suspension mech. resistance - / - Ns / m Effective piston area 7.0 / 120 sq. cm