Thiele/Small Parameters

50CWCS124

Electrical Parameters
Re
3.73
Ohm
electrical voice coil resistance at DC
Krm
0.0024
Ohm
WRIGHT inductance mode
Erm
0.95
WRIGHT inductance mode
Kxm
0.01995
Ohm
WRIGHT inductance mode
Exm
0.79
WRIGHT inductance mode
Cmes
1074.21
µF
electrical capacitance representing moving mass
Lces
24.165
mH
electrical inductance representing driver compliance
Res
42.695
Ohm
resistance due to mechanical losses
fs
31.25
Hz
driver resonance frequency
Mechanical Parameters
Mms
130.7855
g
mechanical mass of driver diaphragm assembly including air load and voice coil
Mmd(Sd)
116.9615
g
mechanical mass of voice coil and diaphragm without air load
Rms
2.855
kg/s
mechanical resistance of total-driver losses
Cms
0.198
mm/N
mechanical compliance of driver suspension
Kms
5.055
N/mm
mechanical stiffness of driver suspension
Bl
11.04
Tm
force factor (Bl product)
Loss Parameters
Qtp
0.7875
total Q-factor considering all losses
Qms
9.017
mechanical Q-factor of driver in free air considering Rms only
Qes
0.788
electrical Q-factor of driver in free air considering Re only
Qts
0.7245
total Q-factor considering Re and Rms only
Other Parameters
Vas
78.9608
I
equivalent air volume of suspension
n0
0.2955
reference efficiency (2 pi-radiation using Re)
Lm
86.9
dB
characteristic sound pressure level (SPL at 1m for 1W @ Re)
Lnom
87.205
dB
nominal sensitivity (SPL at 1m for 1W @ Zn)
Sd
530.93
cm²
diaphragm area
Xmax
13.275
mm