Thiele/Small Parameters

Re

3.40

Ohm

electrical voice coil resistance at DC

Le

3.4736

mH

frequency independent part of voice coil inductance

Krm

0.01

Ohm

WRIGHT inductance mode

Erm

0.85

WRIGHT inductance mode

Kxm

0.04

Ohm

WRIGHT inductance mode

Exm

0.74

WRIGHT inductance mode

Cmes

766.80

µF

electrical capacitance representing moving mass

Lces

17.96

mH

electrical inductance representing driver compliance

Res

43.70

Ohm

resistance due to mechanical losses

fs

42.94

Hz

driver resonance frequency

Mms

136.11

g

mechanical mass of driver diaphragm assembly including air load and voice coil

Mmd

131.13

g

mechanical mass of voice coil and diaphragm without air load

Rms

4.07

kg/s

mechanical resistance of total-driver losses

Cms

0.10

mm/N

mechanical compliance of driver suspension

Kms

9.92

N/mm

mechanical stiffness of driver suspension

Bl

13.33

N/A

force factor (Bl product)

Lambda

0.03

suspension creep factor

Qtp

0.80

total Q-factor considering all losses

Qms

9.04

mechanical Q-factor of driver in free air considering Rms only

Qes

0.70

electrical Q-factor of driver in free air considering Re only

Qts

0.65

total Q-factor considering Re and Rms only

Vas

10.36

I

equivalent air volume of suspension

n0

0.11

%

reference efficiency (2 pi-radiation using Re)

Lm

82.69

dB

characteristic sound pressure level (SPL at 1m for 1W @ Re)

Lnom

83.40

dB

nominal sensitivity (SPL at 1m for 1W @ Zn)

rmse Z

3.61

root-mean-square fitting error of driver impedance Z(f)

rmse Hx

1.79

root-mean-square fitting error of transfer function Hx (f)

Sd

268.96

cm²

diaphragm area

Xmax

13.5

mm