Machete MS-10 D4

10″ subwoofer · dual 4 Ω · 250 W RMS

Fs 34.9 HzQts 0.42Vas 1.34 ft³Xmax 0.39″

Recommended box

For a sedan, one sub, 250 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 volume0.49 ft³ (14 L)
Qtc0.81
Fc67 Hz
F3 (−3 dB, no cabin gain)64 Hz
Example box (outside)12 3/16″ × 12 3/16″ × 9 11/16″
Open sealed box in designer

Ported

Net volume1.66 ft³ (47 L)
Tuning (Fb)35 Hz
Portslot 1 9/16 × 14 5/16″, 25 3/4″ long
Port velocity at 250 W49 ft/s
F3 (−3 dB, no cabin gain)33 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 10 3/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs34.9 Hz
Qts0.42
Qes0.452
Qms6
Vas1.34 ft³
Re (one coil)3.6 Ω
Sd≈ 52.7 in²
Xmax0.39″
EBP77 — sealed or ported calc.
Sensitivity, 1 W / 1 m87.5 dB calc.

General

Size10″
Voice coilsdual 4 Ω
RMS power250 W

Mounting dimensions

Ø≈ 10 3/8″cutout Ø9 3/16″mounting depth 5 1/16″magnet Ø≈ 6″
Cutout diameter9 3/16″
Mounting depth5 1/16″

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 10″ models