Thiele/Small Parameters

51MWE104

Re
3.795
Ohm
electrical voice coil resistance at DC
Krm
0.0063
Ohm
WRIGHT inductance model
Erm
0.895
WRIGHT inductance model
Kxm
0.04645
Ohm
WRIGHT inductance model
Exm
0.73
WRIGHT inductance model
Cmes
676.185
µF
electrical capacitance representing moving mass
Lces
26.42
mH
electrical inductance representing driver compliance
Res
81.06
Ohm
resistance due to mechanical losses
fs
37.65
Hz
driver resonance frequency
Mms
179.569
g
mechanical mass of driver diaphragm assembly including air load and voice coil
Mmd (Sd)
172.285
g
mechanical mass of voice coil and diaphragm without air load
Rms
3.28
kg/s
mechanical resistance of total-driver losses
Cms
0.0995
mm/N
mechanical compliance of driver suspension
Kms
10.06
N/mm
mechanical stiffness of driver suspension
Bl
16.3015
Tm
force factor (Bl product)
Qtp
0.6995
total Q-factor considering all losses
Qms
12.958
mechanical Q-factor of driver in free air considering Rms only
Qes
0.6075
electrical Q-factor of driver in free air considering Re only
Qts
0.58
total Q-factor considering Re and Rms only
Vas
16.88285
I
equivalent air volume of suspension
n0
0.143
%
reference efficiency (2 pi-radiation using Re)
Lm
83.75
dB
characteristic sound pressure level (SPL at 1m for 1W @ Re)
Lnom
83.975
dB
nominal sensitivity (SPL at 1m for 1W @ Zn)
Sd
346.36
cm²
diaphragm area
Xmax
18.4
mm