JBL Selenium 15SWV3.8

15″ subwoofer · 4 Ω · 1,900 W RMS

Fs 53.4 HzQts 0.52Vas 1.55 ft³Xmax 0.43″

Recommended box

For a sedan, one sub, 1,900 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 volume1.20 ft³ (34 L)
Qtc0.78
Fc81 Hz
F3 (−3 dB, no cabin gain)78 Hz
Example box (outside)17 5/16″ × 17 5/16″ × 10 13/16″
Open sealed box in designer

Ported

Net volume3.46 ft³ (98 L)
Tuning (Fb)44 Hz
Portslot 4 15/16 × 16 11/16″, 25 5/16″ long
Port velocity at 1,900 W66 ft/s
F3 (−3 dB, no cabin gain)40 Hz
Example box (outside)31 1/2″ × 18 1/8″ × 18 3/8″
Open ported box in designer
203040506080100150200667278849096HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs53.4 Hz
Qts0.52
Qes0.53
Qms18.94
Vas1.55 ft³
Re3.13 Ω
Sd130.2 in²
Xmax0.43″
Vd56.4 in³ calc.
Mms202 g calc.
BL20 T·m calc.
EBP101 — suits ported calc.
Sensitivity, 1 W / 1 m93 dB calc.

General

Size15″
Voice coils4 Ω
RMS power1,900 W

Mounting dimensions

Ø≈ 15 3/16″cutout ≈ Ø14″mounting depth ≈ 7 1/16″magnet Ø≈ 9 1/16″
Cutout diameter≈ 14″
Mounting depth≈ 7 1/16″

“≈” 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 JBL Selenium 15″ models