Skar Audio IX-12 D4

2x4Ω

Subwoofer

12″ / 314 mm

Nominal diameter

35 Hz

Resonance

0.62

Q factor

88 dB

Sensitivity

± 7 mm

Linear excursion

500 W

Program Power

Skar Audio IX-12 D4 Subwoofer

Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 88.1; dB
Resonance frequency (free air)
f_S: 35.1; Hz
Mechanical quality factor
Q_MS: 5.90
Electrical quality factor
Q_ES: 0.69
Total quality factor
Q_TS: 0.62
Maximum linear excursion
x_max: 7.0; mm
Air volume displaced at x_max
V_D: 357; cm³
Power handling
P: 250; W
Program power
P_max: 500; W
Nominal impedance
Z: 2 x 4; Ω
DC resistance (in series)
R_E: 6.1; Ω
Inductance (1kHz, in series, estimated)
L_E: 1.5; mH
VC Diameter: 51; mm
Winding material: Copper
Force factor (in series)
Bl: 14.8; N/A
Motor constant
Bl/√R_E: 5.99; N/√W
Diameter: 140; mm
Effective diameter: 255; mm
Effective area
S_D: 510; cm²
Moving mass
M_MS: 111.7; g
Moving mass (without air load)
M_MD: 103.3; g
Material: Pressed Paper
Stiffness
K_MS: 5.44; N/mm
Compliance
C_MS: 184; µm/N
Equivalent volume to the compliance
V_AS: 67.8; L
Mechanical resistance
R_MS: 4.18; N·s/m
Surround material: Foam
Nominal diameter: 12; ″
: 314; mm
Overall diameter: 314; mm
Baffle cutout diameter: 284; mm
Overall depth: 155; mm
Flange thickness: 21; mm
Mounting depth: 134; mm
Volume occupied by the driver (estimated): 2.7; L

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