Fi Car Audio SP4 15 D1

Name: SP4 15 D1
Brand: Fi Car Audio

2x1Ω

2x2Ω

Subwoofer

15″ / 397 mm

Nominal diameter

28 Hz

Resonance

0.48

Q factor

87 dB

Sensitivity

± 33 mm

Linear excursion

6000 W

Program Power

Discontinued

Sensitivity (1w, 1m, infinite baffle)

SPL_1W

86.9

Thiele & Small parameters

Resonance frequency (free air)

f_S

27.6

Mechanical quality factor

Q_MS

6.56

Electrical quality factor

Q_ES

0.52

Total quality factor

Q_TS

0.48

Large signal parameters

Maximum linear excursion

x_max

33.0

Air volume displaced at x_max

V_D

2673

cm³

Power handling

3000

Program power

P_max

6000

Voice Coil

Nominal impedance

2 x 1

DC resistance (in series)

R_E

1.3

Inductance (1kHz, in series, estimated)

L_E

0.74

Magnet

Force factor (in series)

13.7

N/A

Motor constant

Bl/√R_E

12.0

N/√W

Diaphragm

Effective diameter

321

Effective area

S_D

810

cm²

Moving mass

M_MS

434

Moving mass (without air load)

M_MD

417.2

Suspensions

Stiffness

K_MS

12.99

N/mm

Compliance

C_MS

µm/N

Equivalent volume to the compliance

V_AS

70.4

Mechanical resistance

R_MS

11.47

N·s/m

Dimensions

Nominal diameter

″

397

Overall diameter

397

Baffle cutout diameter

359

Mounting depth

286

Volume occupied by the driver

5.95

Export this driver to a simulation software:

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f_S

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S_D

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S_D

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