Thiele/Small Parameters

52L7XS152

Re
3.625
Ohm
electrical voice coil resistance at DC
Krm
0.0322
Ohm
WRIGHT inductance model
Erm
0.74
WRIGHT inductance model
Kxm
0.10975
Ohm
WRIGHT inductance model
Exm
0.64
WRIGHT inductance model
Cmes
940.645
µF
electrical capacitance representing moving mass
Lces
25.775
mH
electrical inductance representing driver compliance
Res
22.185
Ohm
resistance due to mechanical losses
fs
32.4
Hz
driver resonance frequency
Mms
792.8655
g
mechanical mass of driver diaphragm assembly including air load and voice coil
Mmd (Sd)
759.2015
g
mechanical mass of voice coil and diaphragm without air load
Rms
38.04
kg/s
mechanical resistance of total-driver losses
Cms
0.0305
mm/N
mechanical compliance of driver suspension
Kms
32.905
N/mm
mechanical stiffness of driver suspension
Bl
29.037
Tm
force factor (Bl product)
Lambda s
0.0595
suspension creep factor
Qtp
0.8205
total Q-factor considering all losses
Qms
4.2425
mechanical Q-factor of driver in free air considering Rms only
Qes
0.695
electrical Q-factor of driver in free air considering Re only
Qts
0.597
total Q-factor considering Re and Rms only
Vas
39.90155
I
equivalent air volume of suspension
n0
0.187
reference efficiency (2 pi-radiation using Re)
Lm
84.745
dB
characteristic sound pressure level (SPL at 1m for 1W @ Re)
Lnom
85.17
dB
nominal sensitivity (SPL at 1m for 1W @ Zn)
Sd
961
cm²
diaphragm area
Xmax
43
mm