Thiele/Small Parameters

41L7102

Re
3.73
Ohm
electrical voice coil resistance at DC
Krm
0.01405
Ohm
WRIGHT inductance mode
Erm
0.795
WRIGHT inductance mode
Kxm
0.07155
Ohm
WRIGHT inductance mode
Exm
0.67
WRIGHT inductance mode
Cmes
616.26
µF
electrical capacitance representing moving mass
Lces
27.025
mH
electrical inductance representing driver compliance
Res
69.95
Ohm
resistance due to mechanical losses
fs
39
Hz
driver resonance frequency
Mms
242.285
g
mechanical mass of driver diaphragm assembly including air load and voice coil
Mmd
231.82
g
mechanical mass of voice coil and diaphragm without air load
Rms
5.622
kg/s
mechanical resistance of total-driver losses
Cms
0.069
mm/N
mechanical compliance of driver suspension
Kms
14.55
N/mm
mechanical stiffness of driver suspension
Bl
19.8295
Tm
force factor (Bl product)
Lambda
0.013
suspension creep factor
Qtp
0.6865
total Q-factor considering all losses
Qms
10.5605
mechanical Q-factor of driver in free air considering Rms only
Qes
0.563
electrical Q-factor of driver in free air considering Re only
Qts
0.5345
total Q-factor considering Re and Rms only
Vas
18.92285
I
equivalent air volume of suspension
n0
0.1915
reference efficiency (2 pi-radiation using Re)
Lm
85.025
dB
characteristic sound pressure level (SPL at 1m for 1W @ Re)
Lnom
85.33
dB
nominal sensitivity (SPL at 1m for 1W @ Zn)
rmse Z
3.615
root-mean-square fitting error of driver impedance Z(f)
rmse Hx
3.155
root-mean-square fitting error of transfer function Hx (f)
Sd
441
cm²
diaphragm area
Xmax
18.25
mm