Fi Car Audio IB318 v2 S2

Name: IB318 v2 S2
Brand: Fi Car Audio

2Ω

4Ω

Subwoofer

18″ / 470 mm

Nominal diameter

24 Hz

Resonance

0.79

Q factor

89 dB

Sensitivity

± 34 mm

Linear excursion

1200 W

Program Power

Sensitivity (1w, 1m, infinite baffle)

SPL_1W

89.1

Thiele & Small parameters

Resonance frequency (free air)

f_S

24.4

Mechanical quality factor

Q_MS

9.56

Electrical quality factor

Q_ES

0.87

Total quality factor

Q_TS

0.79

Large signal parameters

Maximum linear excursion

x_max

34.0

Air volume displaced at x_max

V_D

4114

cm³

Power handling

600

Program power

P_max

1200

Voice Coil

Nominal impedance

DC resistance

R_E

1.8

Inductance (1kHz, estimated)

L_E

0.88

Magnet

Force factor

10.6

N/A

Motor constant

Bl/√R_E

7.9

N/√W

Diaphragm

Effective diameter

393

Effective area

S_D

1210

cm²

Moving mass

M_MS

338

Moving mass (without air load)

M_MD

308.2

Suspensions

Stiffness

K_MS

8.33

N/mm

Compliance

C_MS

120

µm/N

Equivalent volume to the compliance

V_AS

246

Mechanical resistance

R_MS

5.42

N·s/m

Dimensions

Nominal diameter

″

470

Overall diameter

470

Baffle cutout diameter

425

Mounting depth

241

Volume occupied by the driver

6.23

Export this driver to a simulation software:

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f_S

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S_D

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f_S

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S_D

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