Thiele/Small Parameters

41L7124

Re
6.075
Ohm
electrical voice coil resistance at DC
Krm
0.0719
Ohm
WRIGHT inductance mode
Erm
0.67
WRIGHT inductance mode
Kxm
0.1319
Ohm
WRIGHT inductance mode
Exm
0.66
WRIGHT inductance mode
Cmes
647.825
µF
electrical capacitance representing moving mass
Lces
36.215
mH
electrical inductance representing driver compliance
Res
91.745
Ohm
resistance due to mechanical losses
fs
32.85
Hz
driver resonance frequency
Mms
322.3385
g
mechanical mass of driver diaphragm assembly including air load and voice coil
Mmd
304.2555
g
mechanical mass of voice coil and diaphragm without air load
Rms
5.424
kg/s
mechanical resistance of total-driver losses
Cms
0.073
mm/N
mechanical compliance of driver suspension
Kms
13.75
N/mm
mechanical stiffness of driver suspension
Bl
22.308
Tm
force factor (Bl product)
Lambda
0.0895
suspension creep factor
Qtp
1.0585
total Q-factor considering all losses
Qms
12.2705
mechanical Q-factor of driver in free air considering Rms only
Qes
0.812
electrical Q-factor of driver in free air considering Re only
Qts
0.7615
total Q-factor considering Re and Rms only
Vas
41.58395
I
equivalent air volume of suspension
n0
0.1745
reference efficiency (2 pi-radiation using Re)
Lm
84.615
dB
characteristic sound pressure level (SPL at 1m for 1W @ Re)
Lnom
85.815
dB
nominal sensitivity (SPL at 1m for 1W @ Zn)
rmse Z
2.35
root-mean-square fitting error of driver impedance Z(f)
rmse Hx
2.435
root-mean-square fitting error of transfer function Hx (f)
Sd
635.03
cm²
diaphragm area
Xmax
21
mm