這顆很猛
看一下頻率響應圖
Thiele Small parameters: Free air Common Baffled
Nominal impedance Zn (ohm) 8
Minimum impedance/at freq. Zmin (ohm/Hz) 4.7/106
Maximum impedance Zo (ohm) 64.2
DC resistance Re (ohm) 3.5
Voice coil inductance Le (mH) 4.2
Capacitor in series with 8 ohm
(for impedance compensation) Cc (µF) 38
Resonance Frequency fs (Hz) 18.1 18.1
Mechanical Q factor Qms 3.70 3.70
Electrical Q factor Qes 0.21 0.21
Total Q factor Qts 0.20 0.20
F (Ratio fs/Qts) F (Hz) 90
Mechanical resistance Rms (Kg/s) 5.12
Moving mass Mms (g) 166.3 166.4
Suspension compliance Cms (mm/N) 0.46
Effective cone diameter D (cm) 24.4
Effective piston area Sd (cm²) 466
Equivalent volume VAS (ltrs) 139.2
Force factor Bl (N/A) 17.6
Reference voltage sensitivity
Re 2.83V 1m at 106 Hz (Measured) (dB) 90.6
Magnet and voice coil parameters:
Voice coil diameter d (mm) 51
Voice coil length h (mm) 33
Voice coil layers n 4
Flux density in gap B (T) 1.04
Total useful flux (mWb) 2.50
Height of the gap hg (mm) 8
Diameter of magnet dm (mm) 147
Height of magnet hm (mm) 35
Weight of magnet (kg) 2.42