Rated power60 W Maximum power 80 W Nominal impedance Z 4 Ohm Frequency response 60–15000 Hz Mean sound pressure level 86 dB (1 W/1 m) Resonance frequency fs 85 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 6 mm Cutout diameter 142 mm Net weight 0,42 kg D. C. resistance Rdc 3,7 Ohm Mechanical Q factor Qms 2,99 Electrical Q factor Qes 1,55 Total Q factor Qts 1,02 Equivalent volume Vas 10 l Effective piston area Sd 130 cm2 Dynamically moved mass Mms 8,4 g Force factor Bxl 3,2 T m Inductance of the voice coil L 0,4 mH Protective system IP 65 Heat resistance −40 ... 80 °C Colour schwarz / black