Lowther PM8 Drive Unit
PM8 Drive UnitPM8 Drive Unit
DC Resistance of Voice Coil Re 7.4 ohms
Free Air Resonance Fo 45 Hz
Emission Piston Area Sd 0.021M²
Equivalent Volume Suspension Vas 55.719 Ltrs
Suspension Compliance Cms 889.765 u M/N
Mass of Cone Mmd 11.0 g
Mass of Moving Parts Mms 12.75 g
Force Factor Bl 8.654 T-M
Mechanical Q Factor Qms 4.392
Electrical Q Factor Qes 0.359
Total Q Factor Qts 0.332
Voice Coil Inductance @ 1 kHz Le 103.409 uH
Reference Efficiency No 1.584%
Sound Pressure Level SPL 94.016 Db