Mmats Juggernaut 15 D2

15″ subwoofer · dual 2 Ω · 2,000 W RMS

Fs 38.4 HzQts 0.33Vas 3.09 ft³Xmax 0.78″

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 volume1.24 ft³ (35 L)
Qtc0.62
Fc72 Hz
F3 (−3 dB, no cabin gain)88 Hz
Example box (outside)17 5/16″ × 17 5/16″ × 11 1/16″
Open sealed box in designer

Ported

Net volume2.58 ft³ (73 L)
Tuning (Fb)42 Hz
Portslot 3 15/16 × 16 11/16″, 31 15/16″ long
Port velocity at 2,000 W63 ft/s
F3 (−3 dB, no cabin gain)42 Hz
Example box (outside)31 1/2″ × 18 1/8″ × 15 5/8″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs38.4 Hz
Qts0.33
Qes0.352
Qms5.27
Vas3.09 ft³
Re (one coil)2 Ω
Sd135.3 in²
Xmax0.78″
Vd105.5 in³ calc.
Mms212 g calc.
BL17 T·m calc.
EBP109 — suits ported calc.
Sensitivity, 1 W / 1 m93.5 dB calc.

General

Size15″
Voice coilsdual 2 Ω
RMS power2,000 W

Mounting dimensions

Ø15 5/8″cutout Ø14 1/16″mounting depth 7 1/8″magnet Ø≈ 9 1/8″
Cutout diameter14 1/16″
Mounting depth7 1/8″
Overall diameter15 5/8″

“≈” 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