Kicx HeadShot Q312 (2+2)

12″ subwoofer · dual 2 Ω · 2,000 W RMS

Fs 42 HzQts 0.42Vas 0.70 ft³Xmax 0.69″

Recommended box

For a sedan, one sub, 2,000 W. It’s the same math as the designer’s step-by-step mode, where you can fit the box to your space, vehicle and amp and get plans, a cut sheet and DXF.

Sealed

Net volume0.74 ft³ (21 L)
Qtc0.59
Fc59 Hz
F3 (−3 dB, no cabin gain)75 Hz
Example box (outside)14 3/16″ × 14 3/16″ × 10 7/16″
Open sealed box in designer

Ported

Net volume1.55 ft³ (44 L)
Tuning (Fb)34 Hz
Portslot 2 3/8 × 14 5/16″, 45 9/16″ long
Port velocity at 2,000 W92 ft/s
F3 (−3 dB, no cabin gain)32 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 12 1/2″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs42 Hz
Qts0.42
Qes0.496
Qms2.8
Vas0.70 ft³
Re (one coil)1.8 Ω
Sd80.9 in²
Xmax0.69″
Vd55.7 in³ calc.
Mms279 g calc.
BL16.3 T·m calc.
EBP85 — sealed or ported calc.
Sensitivity, 1 W / 1 m86.7 dB calc.

General

Size12″
Voice coilsdual 2 Ω
RMS power2,000 W

Mounting dimensions

Ø12 11/16″cutout Ø11 1/8″mounting depth 7 11/16″magnet Ø≈ 7 3/16″
Cutout diameter11 1/8″
Mounting depth7 11/16″
Overall diameter12 11/16″

“≈” means the value isn’t in the spec sheet and a typical value for the size is used; “calc.” means it’s calculated from the published parameters. Check the manufacturer’s spec sheet before you build.

Data sources

Other Kicx 12″ models