Rated power40 W Maximum power 60 W Nominal impedance Z 8 Ohm Frequency response 80–20000 Hz Mean sound pressure level 93 dB (1 W/1 m) Maximum cone displacement +/−2 mm Resonance frequency fs 120 Hz Magnetic induction 1,0 T Magnetic flux 250 Wb Height of front pole-plate 4 mm Voice coil diameter 20 mm Height of winding 7 mm Cutout diameter 146 mm Net weight 0,72 kg D. C. resistance Rdc 6,3 Ohm Mechanical Q factor Qms 2,94 Electrical Q factor Qes 0,98 Total Q factor Qts 0,74 Equivalent volume Vas 8,2 l Effective piston area Sd 143 cm2 Dynamically moved mass Mms 6,5 g Force factor Bxl 5,7 T m Inductance of the voice coil L 0,7 mH Heat resistance −25 ... 70 °C