Thiele/Small Parameters

48CWRT102

Re
3.81
Ohm
electrical voice coil resistance at DC
Krm
0.0061
Ohm
WRIGHT inductance model
Erm
0.855
WRIGHT inductance model
Kxm
0.0279
Ohm
WRIGHT inductance model
Exm
0.76
WRIGHT inductance model
Cmes
736.375
µF
electrical capacitance representing moving mass
Lces
42.24
mH
electrical inductance representing driver compliance
Res
106.835
Ohm
resistance due to mechanical losses
fs
28.7
Hz
driver resonance frequency
Mms
150.6095
g
mechanical mass of driver diaphragm assembly including air load and voice coil
Mmd
143.221
g
mechanical mass of voice coil and diaphragm without air load
Rms
1.9515
kg/s
mechanical resistance of total-driver losses
Cms
0.2045
mm/N
mechanical compliance of driver suspension
Kms
4.91
N/mm
mechanical stiffness of driver suspension
Bl
14.4
Tm
force factor (Bl product)
Qtp
0.548
total Q-factor considering all losses
Qms
13.932
mechanical Q-factor of driver in free air considering Rms only
Qes
0.505
electrical Q-factor of driver in free air considering Re only
Qts
0.4865
total Q-factor considering Re and Rms only
Vas
35.35685
I
equivalent air volume of suspension
n0
0.1615
%
reference efficiency (2 pi-radiation using Re)
Lm
84.25
dB
characteristic sound pressure level (SPL at 1m for 1W @ Re)
Lnom
84.465
dB
nominal sensitivity (SPL at 1m for 1W @ Zn)
Sd
349.67
cm²
diaphragm area
Xmax
10.5
mm
Xmax (Linear Excursion)