Pride HP 12 D1

12″ subwoofer · dual 1 Ω · 1,250 W RMS

Fs 29 HzQts 0.35Vas 1.06 ft³Xmax 0.75″

Recommended box

For a sedan, one sub, 1,250 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)
Qtc0.56
Fc47 Hz
F3 (−3 dB, no cabin gain)64 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)28 Hz
Port2 round ports Ø2 1/2″, 22 1/4″ long
Port velocity at 1,250 W218 ft/s
F3 (−3 dB, no cabin gain)27 Hz
Example box (outside)31 3/16″ × 15 3/4″ × 8 1/4″
Open ported box in designer
2030405060801001502006066727884HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs29 Hz
Qts0.35
Qes0.372
Qms6
Vas1.06 ft³
Re (one coil)≈ 0.85 Ω
Sd74.4 in²
Xmax0.75″
Vd55.7 in³ calc.
Mms328 g calc.
BL11.7 T·m calc.
EBP78 — sealed or ported calc.
Sensitivity, 1 W / 1 m84.9 dB calc.

General

Size12″
Voice coilsdual 1 Ω
RMS power1,250 W

Mounting dimensions

Ø≈ 12 3/16″cutout Ø11″mounting depth 5 3/4″magnet Ø≈ 7 3/16″
Cutout diameter11″
Mounting depth5 3/4″

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 Pride 12″ models