Machete M12 v2 D4

12″ subwoofer · dual 4 Ω · 500 W RMS

Fs 31.8 HzQts 0.44Vas 1.70 ft³Xmax 0.55″

Recommended box

For a sedan, one sub, 500 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)
Qtc0.80
Fc58 Hz
F3 (−3 dB, no cabin gain)55 Hz
Example box (outside)14 3/16″ × 14 3/16″ × 10 7/16″
Open sealed box in designer

Ported

Net volume2.40 ft³ (68 L)
Tuning (Fb)31 Hz
Portslot 1 15/16 × 14 5/16″, 28 5/16″ long
Port velocity at 500 W63 ft/s
F3 (−3 dB, no cabin gain)29 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 13 7/8″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs31.8 Hz
Qts0.44
Qes0.475
Qms6
Vas1.70 ft³
Re (one coil)3.6 Ω
Sd≈ 76 in²
Xmax0.55″
EBP67 — sealed or ported calc.
Sensitivity, 1 W / 1 m87.1 dB calc.

General

Size12″
Voice coilsdual 4 Ω
RMS power500 W

Mounting dimensions

Ø≈ 12 1/4″cutout Ø11 1/16″mounting depth 6 1/8″magnet Ø≈ 7 3/16″
Cutout diameter11 1/16″
Mounting depth6 1/8″

Only Qts is published — Qms assumed to be 6 and Qes calculated (barely affects box design).

“≈” 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 Machete 12″ models