Thiele/Small Parameters

Re

7.68

Ohm

electrical voice coil resistance at DC

Krm

0.006

Ohm

WRIGHT inductance mode

Erm

0.88

WRIGHT inductance mode

Kxm

0.0337

Ohm

WRIGHT inductance mode

Exm

0.77

WRIGHT inductance mode

Cmes

390.12

µF

electrical capacitance representing moving mass

Lces

32.89

mH

electrical inductance representing driver compliance

Res

128.91

Ohm

resistance due to mechanical losses

fs

44.4

Hz

driver resonance frequency

Mms

69.9

g

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

Mmd (Sd)

66.971

g

mechanical mass of voice coil and diaphragm without air load

Rms

1.39

kg/s

mechanical resistance of total-driver losses

Cms

0.184

mm/N

mechanical compliance of driver suspension

Kms

5.45

N/mm

mechanical stiffness of driver suspension

Bl

13.386

Tm

force factor (Bl product)

Lambda

0.04

suspension creep factor

Qtp

0.873

total Q-factor considering all losses

Qms

14.039

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

Qes

0.836

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

Qts

0.789

total Q-factor considering Re and Rms only

Vas

9.249

I

equivalent air volume of suspension

n0

0.093

%

reference efficiency (2 pi-radiation using Re)

Lm

81.9

dB

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

Lnom

82.07

dB

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

rmse Z

3.55

%

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

rmse Hx

1.97

%

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

Sd

188.69

cm²

diaphragm area

Xmax

10.5

mm

Xmax (Linear Excursion)