Thiele/Small Parameters

Re

3.77

Ohm

electrical voice coil resistance at DC

Krm

0.0054

Ohm

WRIGHT inductance model

Erm

0.95

WRIGHT inductance model

Kxm

0.0413

Ohm

WRIGHT inductance model

Exm

0.78

WRIGHT inductance model

Cmes

650.19

µF

electrical capacitance representing moving mass

Lces

48.73

mH

electrical inductance representing driver compliance

Res

107.46

Ohm

resistance due to mechanical losses

fs

28.3

Hz

driver resonance frequency

Mms

302.097

g

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

Mmd

276.082

g

mechanical mass of voice coil and diaphragm without air load

Rms

4.324

kg/s

mechanical resistance of total-driver losses

Cms

0.105

mm/N

mechanical compliance of driver suspension

Kms

9.53

N/mm

mechanical stiffness of driver suspension

Bl

21.555

Tm

force factor (Bl product)

Lambda

-0.033

suspension creep factor

Qtp

0.499

total Q-factor considering all losses

Qms

12.412

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

Qes

0.435

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

Qts

0.420

total Q-factor considering Re and Rms only

Vas

97.2184

I

equivalent air volume of suspension

n0

0.486

%

reference efficiency (2 pi-radiation using Re)

Lm

89.06

dB

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

Lnom

89.32

dB

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

rmse Z

2.56

%

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

rmse Hx

3.02

%

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

Sd

809.28

cm²

diaphragm area

Xmax

14.5

mm

Xmax (Linear Excursion)