Rated power15 W Maximum power 40 W Nominal impedance Z 4 Ohm Frequency response 70–18000 Hz Mean sound pressure level 85 dB (1 W/1 m) Maximum cone displacement 5 mm Resonance frequency fs 110 Hz Magnetic induction 0,8 T Magnetic flux 150 Wb Height of front pole-plate 3 mm Voice coil diameter 20 mm Height of winding 4,5 mm Cutout diameter 114 mm Net weight 0,284 kg D. C. resistance Rdc 3,4 Ohm Mechanical Q factor Qms 5,61 Electrical Q factor Qes 2,8 Total Q factor Qts 1,87 Equivalent volume Vas 8,7 l Effective piston area Sd 87 cm2 Dynamically moved mass Mms 3,8 g Force factor Bxl 1,7 T m Inductance of the voice coil L 0,1 mH Heat resistance −25 ... 70 °C