Re
3.575
Ohm
electrical voice coil resistance at DC
Krm
0.0178
Ohm
WRIGHT inductance model
Erm
0.815
WRIGHT inductance model
Kxm
0.0852
Ohm
WRIGHT inductance model
Exm
0.685
WRIGHT inductance model
Cmes
843.035
µF
electrical capacitance representing moving mass
Lces
22.675
mH
electrical inductance representing driver compliance
Res
38.33
Ohm
resistance due to mechanical losses
fs
36.4
Hz
driver resonance frequency
Mechanical Parameters
(using laser)
Mms
557.7175
g
mechanical mass of driver diaphragm assembly including air load and voice coil
Mmd
524.053
g
mechanical mass of voice coil and diaphragm without air load
Rms
17.26
kg/s
mechanical resistance of total-driver losses
Cms
0.0345
mm/N
mechanical compliance of driver suspension
Kms
29.18
N/mm
mechanical stiffness of driver suspension
Bl
25.7225
Tm
force factor (Bl product)
Qtp
0.866
total Q-factor considering all losses
Qms
7.39
mechanical Q-factor of driver in free air considering Rms only
Qes
0.6895
electrical Q-factor of driver in free air considering Re only
Qts
0.631
total Q-factor considering Re and Rms only
Vas
44.798
I
equivalent air volume of suspension
n0
0.3015
reference efficiency (2 pi-radiation using Re)
Lm
86.815
dB
characteristic sound pressure level (SPL at 1m for 1W @ Re)
Lnom
87.295
dB
nominal sensitivity (SPL at 1m for 1W @ Zn)