Thiele/Small Parameters

44CWCS104

Re
3.825
Ohm
electrical voice coil resistance at DC
Krm
0.0032
Ohm
WRIGHT inductance mode
Erm
0.925
WRIGHT inductance mode
Kxm
0.02475
Ohm
WRIGHT inductance mode
Exm
0.765
WRIGHT inductance mode
Cmes
711.225
µF
electrical capacitance representing moving mass
Lces
28.335
mH
electrical inductance representing driver compliance
Res
132.17
Ohm
resistance due to mechanical losses
fs
35.5
Hz
driver resonance frequency
Mms
97.39
g
mechanical mass of driver diaphragm assembly including air load and voice coil
Mmd
89.6815
g
mechanical mass of voice coil and diaphragm without air load
Rms
1.0365
kg/s
mechanical resistance of total-driver losses
Cms
0.207
mm/N
mechanical compliance of driver suspension
Kms
4.845
N/mm
mechanical stiffness of driver suspension
Bl
11.702
Tm
force factor (Bl product)
Lambda
-0.0045
suspension creep factor
Qtp
0.6595
total Q-factor considering all losses
Qms
20.9625
mechanical Q-factor of driver in free air considering Rms only
Qes
0.6065
electrical Q-factor of driver in free air considering Re only
Qts
0.5895
total Q-factor considering Re and Rms only
Vas
37.86675
I
equivalent air volume of suspension
n0
0.268
reference efficiency (2 pi-radiation using Re)
Lm
86.475
dB
characteristic sound pressure level (SPL at 1m for 1W @ Re)
Lnom
86.675
dB
nominal sensitivity (SPL at 1m for 1W @ Zn)
rmse Z
2.37
root-mean-square fitting error of driver impedance Z(f)
rmse Hx
1.705
root-mean-square fitting error of transfer function Hx (f)
Sd
359.68
cm²
diaphragm area
Xmax
10.3
mm