Thiele/Small Parameters

41L7152

Re
3.575
Ohm
electrical voice coil resistance at DC
Krm
0.05035
Ohm
WRIGHT inductance mode
Erm
0.655
WRIGHT inductance mode
Kxm
0.08335
Ohm
WRIGHT inductance mode
Exm
0.665
WRIGHT inductance mode
Cmes
1087.265
µF
electrical capacitance representing moving mass
Lces
22.83
mH
electrical inductance representing driver compliance
Res
58.25
Ohm
resistance due to mechanical losses
fs
31.95
Hz
driver resonance frequency
Mms
507.0675
g
mechanical mass of driver diaphragm assembly including air load and voice coil
Mmd
469.6915
g
mechanical mass of voice coil and diaphragm without air load
Rms
8.0135
kg/s
mechanical resistance of total-driver losses
Cms
0.049
mm/N
mechanical compliance of driver suspension
Kms
20.45
N/mm
mechanical stiffness of driver suspension
Bl
21.5955
Tm
force factor (Bl product)
Lambda
0.048
suspension creep factor
Qtp
1.048
total Q-factor considering all losses
Qms
12.7095
mechanical Q-factor of driver in free air considering Rms only
Qes
0.7815
electrical Q-factor of driver in free air considering Re only
Qts
0.736
total Q-factor considering Re and Rms only
Vas
73.53105
I
equivalent air volume of suspension
n0
0.296
reference efficiency (2 pi-radiation using Re)
Lm
86.905
dB
characteristic sound pressure level (SPL at 1m for 1W @ Re)
Lnom
87.4
dB
nominal sensitivity (SPL at 1m for 1W @ Zn)
rmse Z
3.08
root-mean-square fitting error of driver impedance Z(f)
rmse Hx
3.44
root-mean-square fitting error of transfer function Hx (f)
Sd
1030.41
cm²
diaphragm area
Xmax
21.5
mm