Fi Car Audio TEAM 4 12 D2

2x2Ω

Subwoofer

12″ / 318 mm

Nominal diameter

34 Hz

Resonance

0.37

Q factor

85 dB

Sensitivity

± 33 mm

Linear excursion

9000 W

Program Power

Fi Car Audio TEAM 4 12 D2 Subwoofer

Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 84.7; dB
Resonance frequency (free air)
f_S: 34.3; Hz
Mechanical quality factor
Q_MS: 7.83
Electrical quality factor
Q_ES: 0.38
Total quality factor
Q_TS: 0.37
Maximum linear excursion
x_max: 33.0; mm
Air volume displaced at x_max
V_D: 1584; cm³
Power handling
P: 4500; W
Program power
P_max: 9000; W
Nominal impedance
Z: 2 x 2; Ω
DC resistance (in series)
R_E: 3.0; Ω
Inductance (1kHz, in series, estimated)
L_E: 1.62; mH
Force factor (in series)
Bl: 26.1; N/A
Motor constant
Bl/√R_E: 15.1; N/√W
Effective diameter: 247; mm
Effective area
S_D: 480; cm²
Moving mass
M_MS: 404; g
Moving mass (without air load)
M_MD: 396.1; g
Stiffness
K_MS: 18.87; N/mm
Compliance
C_MS: 53; µm/N
Equivalent volume to the compliance
V_AS: 17.2; L
Mechanical resistance
R_MS: 11.12; N·s/m
Nominal diameter: 12; ″
: 318; mm
Overall diameter: 318; mm
Baffle cutout diameter: 283; mm
Mounting depth: 254; mm
Volume occupied by the driver: 5.38; L

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