Lowther A55 Drive Unit
A55 Drive Unit{short description of image}
DC Resistance of Voice Coil Re 7.4 ohms
Free Air Resonance Fo 82 Hz
Emission Piston Area Sd 0.01055M²
Equivalent Volume Suspension Vas 4.254 Ltrs
Suspension Compliance Cms 269.166 u M/N
Mass of Cone Mmd 7.0 g
Mass of Moving Parts Mms 7.623 g
Force Factor Bl 9.712 T-M
Mechanical Q Factor Qms 5.831
Electrical Q Factor Qes 0.384
Total Q Factor Qts 0.360
Voice Coil Inductance @ 1 kHz Le 114.819 uH
Reference Efficiency No 1.471%
Sound Pressure Level SPL 93.694 Db