Swat EXE-P15D2

15″ subwoofer · dual 2 Ω · 2,600 W RMS

Fs 28.9 HzQts 0.53Vas 1.54 ft³

Recommended box

For a sedan, one sub, 2,600 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 volume1.39 ft³ (39.5 L)
Qtc0.77
Fc42 Hz
F3 (−3 dB, no cabin gain)41 Hz
Example box (outside)17 5/16″ × 17 5/16″ × 12 1/8″
Open sealed box in designer

Ported

Net volume3.74 ft³ (106 L)
Tuning (Fb)25 Hz
Portslot 3 3/4 × 16 11/16″, 64 13/16″ long
Port velocity at 2,600 W77 ft/s
F3 (−3 dB, no cabin gain)22 Hz
Example box (outside)31 1/2″ × 18 1/8″ × 24 3/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs28.9 Hz
Qts0.53
Qes0.581
Qms6
Vas1.54 ft³
Re (one coil)≈ 1.7 Ω
Sd≈ 124 in²
Xmax≈ 0.39″
EBP50 — suits sealed calc.
Sensitivity, 1 W / 1 m84.6 dB calc.

General

Size15″
Voice coilsdual 2 Ω
RMS power2,600 W

Mounting dimensions

Ø15 11/16″cutout Ø14 5/16″mounting depth 9 5/8″magnet Ø9″
Cutout diameter14 5/16″
Mounting depth9 5/8″
Overall diameter15 11/16″
Magnet diameter9″

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 Swat 15″ models