Re
3.56
Ohm
electrical voice coil resistance at DC
Krm
0.0194
Ohm
WRIGHT inductance model
Erm
0.80
WRIGHT inductance model
Kxm
0.0835
Ohm
WRIGHT inductance model
Exm
0.68
WRIGHT inductance model
Cmes
564.33
µF
electrical capacitance representing moving mass
Lces
28.62
mH
electrical inductance representing driver compliance
Res
53.57
Ohm
resistance due to mechanical losses
fs
39.6
Hz
driver resonance frequency
Mechanical Parameters
(using laser)
Mms
381.211
g
mechanical mass of driver diaphragm assembly including air load and voice coil
Mmd
372.832
g
mechanical mass of voice coil and diaphragm without air load
Rms
12.610
kg/s
mechanical resistance of total-driver losses
Cms
0.042
mm/N
mechanical compliance of driver suspension
Kms
23.60
N/mm
mechanical stiffness of driver suspension
Bl
25.991
Tm
force factor (Bl product)
Qtp
0.666
total Q-factor considering all losses
Qms
7.522
mechanical Q-factor of driver in free air considering Rms only
Qes
0.500
electrical Q-factor of driver in free air considering Re only
Qts
0.469
total Q-factor considering Re and Rms only
Vas
8.6702
I
equivalent air volume of suspension
n0
0.104
reference efficiency (2 pi-radiation using Re)
Lm
82.35
dB
characteristic sound pressure level (SPL at 1m for 1W @ Re)
Lnom
82.86
dB
nominal sensitivity (SPL at 1m for 1W @ Zn)