Machete ML-12R D2

12″ subwoofer · dual 2 Ω · 500 W RMS

Fs 38 HzQts 0.46Vas 1.48 ft³Xmax 0.47″

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
Fc66 Hz
F3 (−3 dB, no cabin gain)63 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)35 Hz
Portslot 2 3/16 × 14 5/16″, 23 5/8″ long
Port velocity at 500 W62 ft/s
F3 (−3 dB, no cabin gain)32 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 13 9/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs38 Hz
Qts0.46
Qes0.498
Qms6
Vas1.48 ft³
Re (one coil)≈ 1.7 Ω
Sd≈ 76 in²
Xmax0.47″
EBP76 — sealed or ported calc.
Sensitivity, 1 W / 1 m88.7 dB calc.

General

Size12″
Voice coilsdual 2 Ω
RMS power500 W

Mounting dimensions

Ø≈ 12 1/8″cutout Ø10 15/16″mounting depth 5 3/8″magnet Ø≈ 7 1/8″
Cutout diameter10 15/16″
Mounting depth5 3/8″

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