Thiele/Small Parameters

50CWCS154

Electrical Parameters
Re
3.375
Ohm
electrical voice coil resistance at DC
Krm
0.0033
Ohm
WRIGHT inductance mode
Erm
0.995
WRIGHT inductance mode
Kxm
0.0248
Ohm
WRIGHT inductance mode
Exm
0.805
WRIGHT inductance mode
Cmes
1124.72
µF
electrical capacitance representing moving mass
Lces
31.43
mH
electrical inductance representing driver compliance
Res
39.135
Ohm
resistance due to mechanical losses
fs
26.8
Hz
driver resonance frequency
Mechanical Parameters
Mms
231.586
g
mechanical mass of driver diaphragm assembly including air load and voice coil
Mmd(Sd)
204.5865
g
mechanical mass of voice coil and diaphragm without air load
Rms
5.2735
kg/s
mechanical resistance of total-driver losses
Cms
0.153
mm/N
mechanical compliance of driver suspension
Kms
6.555
N/mm
mechanical stiffness of driver suspension
Bl
14.3505
Tm
force factor (Bl product)
Loss Parameters
Qtp
0.659
total Q-factor considering all losses
Qms
7.4015
mechanical Q-factor of driver in free air considering Rms only
Qes
0.639
electrical Q-factor of driver in free air considering Re only
Qts
0.588
total Q-factor considering Re and Rms only
Other Parameters
Vas
148.76935
I
equivalent air volume of suspension
n0
0.429
reference efficiency (2 pi-radiation using Re)
Lm
88.525
dB
characteristic sound pressure level (SPL at 1m for 1W @ Re)
Lnom
89.26
dB
nominal sensitivity (SPL at 1m for 1W @ Zn)
Sd
829.58
cm²
diaphragm area
Xmax
16.1
mm