Thiele/Small Parameters

41L7154

Re
5.775
Ohm
electrical voice coil resistance at DC
Krm
0.0674
Ohm
WRIGHT inductance mode
Erm
0.66
WRIGHT inductance mode
Kxm
0.1253
Ohm
WRIGHT inductance mode
Exm
0.65
WRIGHT inductance mode
Cmes
686.665
µF
electrical capacitance representing moving mass
Lces
33.485
mH
electrical inductance representing driver compliance
Res
80.65
Ohm
resistance due to mechanical losses
fs
33.2
Hz
driver resonance frequency
Mms
475.625
g
mechanical mass of driver diaphragm assembly including air load and voice coil
Mmd
438.249
g
mechanical mass of voice coil and diaphragm without air load
Rms
8.591
kg/s
mechanical resistance of total-driver losses
Cms
0.0485
mm/N
mechanical compliance of driver suspension
Kms
20.685
N/mm
mechanical stiffness of driver suspension
Bl
26.3185
Tm
force factor (Bl product)
Lambda
0.0245
suspension creep factor
Qtp
1.051
total Q-factor considering all losses
Qms
11.548
mechanical Q-factor of driver in free air considering Rms only
Qes
0.827
electrical Q-factor of driver in free air considering Re only
Qts
0.772
total Q-factor considering Re and Rms only
Vas
72.6324
I
equivalent air volume of suspension
n0
0.3085
reference efficiency (2 pi-radiation using Re)
Lm
87.1
dB
characteristic sound pressure level (SPL at 1m for 1W @ Re)
Lnom
88.515
dB
nominal sensitivity (SPL at 1m for 1W @ Zn)
rmse Z
2.94
root-mean-square fitting error of driver impedance Z(f)
rmse Hx
3.15
root-mean-square fitting error of transfer function Hx (f)
Sd
1030.41
cm²
diaphragm area
Xmax
21.5
mm