Lowther A45 Drive Unit
A45 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 4.154 Ltrs
Suspension Compliance Cms 262.85 u M/N
Mass of Cone Mmd 7.0 g
Mass of Moving Parts Mms 7.623 g
Force Factor Bl 7.818 T-M
Mechanical Q Factor Qms 5.988
Electrical Q Factor Qes 0.587
Total Q Factor Qts 0.534
Voice Coil Inductance @ 1 kHz Le 137.457 uH
Reference Efficiency No 0.973%
Sound Pressure Level SPL 91.90 Db