Thiele/Small Parameters

44L7S102

Re
3.632
Ohm
electrical voice coil resistance at DC
Le
3.8938
mH
frequency independent part of voice coil inductance
Krm
0.01288
Ohm
WRIGHT inductance mode
Erm
0.832
WRIGHT inductance mode
Kxm
0.0649
Ohm
WRIGHT inductance mode
Exm
0.7
WRIGHT inductance mode
Cmes
627.504
µF
electrical capacitance representing moving mass
Lces
39.214
mH
electrical inductance representing driver compliance
Res
93.41
Ohm
resistance due to mechanical losses
fs
32.12
Hz
driver resonance frequency
Mms
206.1566
g
mechanical mass of driver diaphragm assembly including air load and voice coil
Mmd
195.988
g
mechanical mass of voice coil and diaphragm without air load
Rms
3.5416
kg/s
mechanical resistance of total-driver losses
Cms
0.1196
mm/N
mechanical compliance of driver suspension
Kms
8.422
N/mm
mechanical stiffness of driver suspension
Bl
18.1252
N/A
force factor (Bl product)
Lambda
0.0313
suspension creep factor
Qtp
0.566
total Q-factor considering all losses
Qms
11.812
mechanical Q-factor of driver in free air considering Rms only
Qes
0.4602
electrical Q-factor of driver in free air considering Re only
Qts
0.4602
total Q-factor considering Re and Rms only
Vas
31.65348
I
equivalent air volume of suspension
n0
0.2186
%
reference efficiency (2 pi-radiation using Re)
Lm
85.592
dB
characteristic sound pressure level (SPL at 1m for 1W @ Re)
Lnom
86.012
dB
nominal sensitivity (SPL at 1m for 1W @ Zn)
rmse Z
2.828
%
root-mean-square fitting error of driver impedance Z(f)
rmse Hx
1.487
%
root-mean-square fitting error of transfer function Hx (f)
Sd
432.636
cm²
diaphragm area
Xmax
16.25
mm