Specifications Dimensions H × W × D :330 × 205 × 250 mm Details Gross Volume :18 lWeight :6.3 kgPrinciple :2-ways, bass reflexWoofer Bass Ports :1 × 175 mm AS cone1 × 60 mm with Bass Control PlugTweeter :1 × 25 mm silk dome (mag. shielded)Recom. Amplifier Power at Nominal Impedance :20-120 W / channelCrossover Frequency :2,300 HzSensitivity :88 dB / 2.83 V / 1 mNominal Impedance suitable for amplifiers (from ... to) :6 Ohm4 ... 8 OhmMinimum Impedance :4.9 Ohm / 240 HzFrequency Range :44 ··· 25,000 HzNominal / Peak Power Handling : 80 WSEMI NOVA