Machete M15 v2 Sport D2

15″ subwoofer · dual 2 Ω · 950 W RMS

Fs 30.1 HzQts 0.52Vas 2.15 ft³Xmax 0.63″

Recommended box

For a sedan, one sub, 950 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 volume1.55 ft³ (44 L)
Qtc0.80
Fc46 Hz
F3 (−3 dB, no cabin gain)44 Hz
Example box (outside)16 15/16″ × 16 15/16″ × 13 7/8″
Open sealed box in designer

Ported

Net volume4.80 ft³ (136 L)
Tuning (Fb)26 Hz
Portslot 3 1/8 × 16 5/16″, 36 3/8″ long
Port velocity at 950 W64 ft/s
F3 (−3 dB, no cabin gain)23 Hz
Example box (outside)31 1/2″ × 17 11/16″ × 23 7/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs30.1 Hz
Qts0.52
Qes0.569
Qms6
Vas2.15 ft³
Re (one coil)1.6 Ω
Sd≈ 124 in²
Xmax0.63″
EBP53 — sealed or ported calc.
Sensitivity, 1 W / 1 m86.7 dB calc.

General

Size15″
Voice coilsdual 2 Ω
RMS power950 W

Mounting dimensions

Ø≈ 15 1/8″cutout Ø13 15/16″mounting depth 7 1/2″magnet Ø≈ 9 1/16″
Cutout diameter13 15/16″
Mounting depth7 1/2″

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 15″ models