Re
1.91
Ohm
electrical voice coil resistance at DC
Krm
0.0110
Ohm
WRIGHT inductance model
Erm
0.82
WRIGHT inductance model
Kxm
0.0619
Ohm
WRIGHT inductance model
Exm
0.66
WRIGHT inductance model
Cmes
965.75
µF
electrical capacitance representing moving mass
Lces
14.10
mH
electrical inductance representing driver compliance
Res
33.41
Ohm
resistance due to mechanical losses
fs
43.1
Hz
driver resonance frequency
Mechanical Parameters
(using laser)
Mms
410.190
g
mechanical mass of driver diaphragm assembly including air load and voice coil
Mmd
401.811
g
mechanical mass of voice coil and diaphragm without air load
Rms
12.715
kg/s
mechanical resistance of total-driver losses
Cms
0.033
mm/N
mechanical compliance of driver suspension
Kms
30.12
N/mm
mechanical stiffness of driver suspension
Bl
20.609
Tm
force factor (Bl product)
Qtp
0.722
total Q-factor considering all losses
Qms
8.743
mechanical Q-factor of driver in free air considering Rms only
Qes
0.501
electrical Q-factor of driver in free air considering Re only
Qts
0.474
total Q-factor considering Re and Rms only
Vas
6.7928
I
equivalent air volume of suspension
n0
0.105
reference efficiency (2 pi-radiation using Re)
Lm
82.39
dB
characteristic sound pressure level (SPL at 1m for 1W @ Re)
Lnom
82.58
dB
nominal sensitivity (SPL at 1m for 1W @ Zn)