Thiele/Small Parameters

44CWCD104

Re
7.465
Ohm
electrical voice coil resistance at DC
Krm
0.00515
Ohm
WRIGHT inductance mode
Erm
0.91
WRIGHT inductance mode
Kxm
0.03185
Ohm
WRIGHT inductance mode
Exm
0.785
WRIGHT inductance mode
Cmes
441.08
µF
electrical capacitance representing moving mass
Lces
44.44
mH
electrical inductance representing driver compliance
Res
193.705
Ohm
resistance due to mechanical losses
fs
35.95
Hz
driver resonance frequency
Mms
95.156
g
mechanical mass of driver diaphragm assembly including air load and voice coil
Mmd
87.448
g
mechanical mass of voice coil and diaphragm without air load
Rms
1.118
kg/s
mechanical resistance of total-driver losses
Cms
0.206
mm/N
mechanical compliance of driver suspension
Kms
4.855
N/mm
mechanical stiffness of driver suspension
Bl
14.688
Tm
force factor (Bl product)
Lambda
0.002
suspension creep factor
Qtp
0.7815
total Q-factor considering all losses
Qms
19.2855
mechanical Q-factor of driver in free air considering Rms only
Qes
0.744
electrical Q-factor of driver in free air considering Re only
Qts
0.716
total Q-factor considering Re and Rms only
Vas
37.71175
I
equivalent air volume of suspension
n0
0.227
reference efficiency (2 pi-radiation using Re)
Lm
85.755
dB
characteristic sound pressure level (SPL at 1m for 1W @ Re)
Lnom
86.05
dB
nominal sensitivity (SPL at 1m for 1W @ Zn)
rmse Z
2.185
root-mean-square fitting error of driver impedance Z(f)
rmse Hx
2.315
root-mean-square fitting error of transfer function Hx (f)
Sd
359.68
cm²
diaphragm area
Xmax
10.3
mm