Swat EXE-12D2

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

Fs 37.2 HzQts 0.43Vas 0.59 ft³Xmax 0.94″

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 volume0.67 ft³ (19 L)
Qtc0.59
Fc51 Hz
F3 (−3 dB, no cabin gain)65 Hz
Example box (outside)14 3/16″ × 14 3/16″ × 9 11/16″
Open sealed box in designer

Ported

Net volume1.41 ft³ (40 L)
Tuning (Fb)30 Hz
Portslot 1 9/16 × 14 5/16″, 43 1/2″ long
Port velocity at 2,000 W128 ft/s
F3 (−3 dB, no cabin gain)28 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 10 5/8″
Open ported box in designer
2030405060801001502006066727884HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs37.2 Hz
Qts0.43
Qes0.472
Qms4.83
Vas0.59 ft³
Re (one coil)1.95 Ω
Sd73 in²
Xmax0.94″
Vd69 in³ calc.
Mms341 g calc.
BL18.2 T·m calc.
EBP79 — sealed or ported calc.
Sensitivity, 1 W / 1 m84.6 dB calc.

General

Size12″
Voice coilsdual 2 Ω
RMS power2,000 W

Mounting dimensions

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

Qes and Qms are not on the spec sheet — calculated from Qts, motor strength BL and Re.

Judging by its value, the published Re is for both coils in series — converted to per coil.

“≈” 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 Swat 12″ models