Audioque HDC412-D1-A

12″ subwoofer · dual 1 Ω · 2,000 W RMS

Fs 43.7 HzQts 0.34Vas 0.41 ft³

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 volume0.71 ft³ (20 L)
Qtc0.43
Fc55 Hz
F3 (−3 dB, no cabin gain)108 Hz
Example box (outside)14 3/16″ × 14 3/16″ × 10 1/16″
Open sealed box in designer

Ported

Net volume1.31 ft³ (37 L)
Tuning (Fb)30 Hz
Portround port Ø2 1/2″, 9 1/2″ long
Port velocity at 2,000 W587 ft/s
F3 (−3 dB, no cabin gain)90 Hz
Example box (outside)21 5/8″ × 15 3/4″ × 10 1/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs43.7 Hz
Qts0.34
Qes0.364
Qms5.23
Vas0.41 ft³
Re (one coil)0.95 Ω
Sd68.8 in²
Xmax≈ 0.39″
Mms315 g calc.
BL15 T·m calc.
EBP120 — suits ported calc.
Sensitivity, 1 W / 1 m86.3 dB calc.

General

Size12″
Voice coilsdual 1 Ω
RMS power2,000 W

Mounting dimensions

Ø≈ 12 5/16″cutout ≈ Ø11 1/8″mounting depth 7 5/8″magnet Ø10″
Cutout diameter≈ 11 1/8″
Mounting depth7 5/8″
Magnet diameter10″

Judging by its value, the published Re is for both coils in series — converted to per coil.

“≈” 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 Audioque 12″ models