Swat REV-15

15″ subwoofer · dual 2 Ω · 450 W RMS

Fs 34 HzQts 0.71Vas 2.83 ft³Xmax 0.63″

Recommended box

For a sedan, one sub, 450 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 volume2.93 ft³ (83 L)
Qtc1.00
Fc48 Hz
F3 (−3 dB, no cabin gain)39 Hz
Example box (outside)31 1/2″ × 17 11/16″ × 12 3/8″
Open sealed box in designer

Ported

Net volume4.98 ft³ (141 L)
Tuning (Fb)34 Hz
Portslot 2 3/8 × 16 5/16″, 12 3/4″ long
Port velocity at 450 W62 ft/s
F3 (−3 dB, no cabin gain)29 Hz
Example box (outside)31 1/2″ × 17 11/16″ × 20 13/16″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs34 Hz
Qts0.71
Qes0.803
Qms6.24
Vas2.83 ft³
Re (one coil)1.7 Ω
Sd128.7 in²
Xmax0.63″
Vd81 in³ calc.
Mms267 g calc.
BL11 T·m calc.
EBP42 — suits sealed calc.
Sensitivity, 1 W / 1 m87.9 dB calc.

General

Size15″
Voice coilsdual 2 Ω
RMS power450 W

Mounting dimensions

Ø≈ 15 1/8″cutout Ø13 15/16″mounting depth 6 5/8″magnet Ø≈ 9 1/16″
Cutout diameter13 15/16″
Mounting depth6 5/8″

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 15″ models