Lowther PM5 Drive Unit
PM5 Drive UnitPM5 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 57.767 Ltrs
Suspension Compliance Cms 922.471 u M/N
Mass of Cone Mmd 11.0 g
Mass of Moving Parts Mms 12.75 g
Force Factor Bl 11.652 T-M
Mechanical Q Factor Qms 3.038
Electrical Q Factor Qes 0.203
Total Q Factor Qts 0.19
Voice Coil Inductance @ 1 kHz Le 31.484 uH
Reference Efficiency No 2.755%
Sound Pressure Level SPL 96.42 Db