Re
3.81
Ohm
electrical voice coil resistance at DC
Krm
0.00905
Ohm
WRIGHT inductance model
Erm
0.865
WRIGHT inductance model
Kxm
0.04425
Ohm
WRIGHT inductance model
Exm
0.76
WRIGHT inductance model
Cmes
510.485
µF
electrical capacitance representing moving mass
Lces
39
mH
electrical inductance representing driver compliance
Res
88.045
Ohm
resistance due to mechanical losses
fs
35.7
Hz
driver resonance frequency
Mechanical Parameters (using laser)
Mms
211.872
g
mechanical mass of driver diaphragm assembly including air load and voice coil
Mmd (Sd)
204.588
g
mechanical mass of voice coil and diaphragm without air load
Rms
4.716
kg/s
mechanical resistance of total-driver losses
Cms
0.094
mm/N
mechanical compliance of driver suspension
Kms
10.65
N/mm
mechanical stiffness of driver suspension
Bl
20.3725
Tm
force factor (Bl product)
Qtp
0.5175
total Q-factor considering all losses
Qms
10.075
mechanical Q-factor of driver in free air considering Rms only
Qes
0.436
electrical Q-factor of driver in free air considering Re only
Qts
0.418
total Q-factor considering Re and Rms only
Vas
15.9537
I
equivalent air volume of suspension
n0
0.16
reference efficiency (2 pi-radiation using Re)
Lm
84.235
dB
characteristic sound pressure level (SPL at 1m for 1W @ Re)
Lnom
84.445
dB
nominal sensitivity (SPL at 1m for 1W @ Zn)
Sd
346.36
cm²
diaphragm area