Pride ST 15 D0.5

15″ subwoofer · dual 0.5 Ω · 5,000 W RMS

Fs 27 HzQts 0.19Vas 2.85 ft³Xmax 1.48″

Recommended box

For a sedan, one sub, 5,000 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 volume1.61 ft³ (45.5 L)
Qtc0.32
Fc45 Hz
F3 (−3 dB, no cabin gain)130 Hz
Example box (outside)17 5/16″ × 17 5/16″ × 13 5/8″
Open sealed box in designer

Ported

Net volume2.65 ft³ (75 L)
Tuning (Fb)27 Hz
Portslot 2 9/16 × 16 11/16″, 53 3/4″ long
Port velocity at 5,000 W139 ft/s
F3 (−3 dB, no cabin gain)120 Hz
Example box (outside)31 1/2″ × 18 1/8″ × 16 3/4″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs27 Hz
Qts0.19
Qes0.204
Qms2.72
Vas2.85 ft³
Re (one coil)0.59 Ω
Sd137.5 in²
Xmax1.48″
Vd203 in³ calc.
Mms480 g calc.
BL15.3 T·m calc.
EBP132 — suits ported calc.
Sensitivity, 1 W / 1 m90.9 dB calc.

General

Size15″
Voice coilsdual 0.5 Ω
RMS power5,000 W

Mounting dimensions

Ø≈ 15 1/2″cutout Ø14 5/16″mounting depth 11 1/8″magnet Ø≈ 9 5/16″
Cutout diameter14 5/16″
Mounting depth11 1/8″

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 Pride 15″ models