Fi Car Audio Alpha v2.1 12 S2

Name: Alpha v2.1 12 S2
Brand: Fi Car Audio

2Ω

4Ω

Subwoofer

12″ / 318 mm

Nominal diameter

38 Hz

Resonance

0.54

Q factor

87 dB

Sensitivity

± 17 mm

Linear excursion

1500 W

Program Power

Sensitivity (1w, 1m, infinite baffle)

SPL_1W

86.6

Thiele & Small parameters

Resonance frequency (free air)

f_S

37.5

Mechanical quality factor

Q_MS

7.44

Electrical quality factor

Q_ES

0.58

Total quality factor

Q_TS

0.54

Large signal parameters

Maximum linear excursion

x_max

17.0

Air volume displaced at x_max

V_D

816

cm³

Power handling

750

Program power

P_max

1500

Voice Coil

Nominal impedance

DC resistance

R_E

1.8

Inductance (1kHz, estimated)

L_E

0.63

Magnet

Force factor

12.0

N/A

Motor constant

Bl/√R_E

8.94

N/√W

Diaphragm

Effective diameter

247

Effective area

S_D

480

cm²

Moving mass

M_MS

198

Moving mass (without air load)

M_MD

190.1

Suspensions

Stiffness

K_MS

11.11

N/mm

Compliance

C_MS

µm/N

Equivalent volume to the compliance

V_AS

29.4

Mechanical resistance

R_MS

6.27

N·s/m

Dimensions

Nominal diameter

″

318

Overall diameter

318

Baffle cutout diameter

283

Mounting depth

165

Volume occupied by the driver

4.81

Export this driver to a simulation software:

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S_D

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S_D

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