Thiele/Small Parameters

52CVR124

Re
7.06
Ohm
electrical voice coil resistance at DC
Krm
0.0063
Ohm
WRIGHT inductance model
Erm
0.945
WRIGHT inductance model
Kxm
0.06305
Ohm
WRIGHT inductance model
Exm
0.75
WRIGHT inductance model
Cmes
556.855
µF
electrical capacitance representing moving mass
Lces
55.875
mH
electrical inductance representing driver compliance
Res
89.815
Ohm
resistance due to mechanical losses
fs
28.5
Hz
driver resonance frequency
Mms
185.2075
g
mechanical mass of driver diaphragm assembly including air load and voice coil
Mmd (Sd)
171.3835
g
mechanical mass of voice coil and diaphragm without air load
Rms
3.703
kg/s
mechanical resistance of total-driver losses
Cms
0.168
mm/N
mechanical compliance of driver suspension
Kms
5.95
N/mm
mechanical stiffness of driver suspension
Bl
18.237
Tm
force factor (Bl product)
Qtp
0.725
total Q-factor considering all losses
Qms
8.9665
mechanical Q-factor of driver in free air considering Rms only
Qes
0.7045
electrical Q-factor of driver in free air considering Re only
Qts
0.653
total Q-factor considering Re and Rms only
Vas
67.0136
I
equivalent air volume of suspension
n0
0.2125
%
reference efficiency (2 pi-radiation using Re)
Lm
85.475
dB
characteristic sound pressure level (SPL at 1m for 1W @ Re)
Lnom
86.015
dB
nominal sensitivity (SPL at 1m for 1W @ Zn)
Sd
530.93
cm²
diaphragm area
Xmax
16.5
mm