Pride HP Lite 12 D1.8

12″ subwoofer · dual 1.8 Ω · 1,200 W RMS

Fs 31.8 HzQts 0.57Vas 0.95 ft³Xmax 0.79″

Recommended box

For a sedan, one sub, 1,200 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 volume0.99 ft³ (28 L)
Qtc0.80
Fc45 Hz
F3 (−3 dB, no cabin gain)42 Hz
Example box (outside)14 3/16″ × 14 3/16″ × 13 1/16″
Open sealed box in designer

Ported

Net volume2.79 ft³ (79 L)
Tuning (Fb)25 Hz
Portslot 2 3/4 × 14 5/16″, 55 3/8″ long
Port velocity at 1,200 W72 ft/s
F3 (−3 dB, no cabin gain)22 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 19 3/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs31.8 Hz
Qts0.57
Qes0.63
Qms6
Vas0.95 ft³
Re (one coil)1.8 Ω
Sd71.9 in²
Xmax0.79″
Vd56.6 in³ calc.
Mms283 g calc.
BL12.7 T·m calc.
EBP50 — sealed or ported calc.
Sensitivity, 1 W / 1 m83.4 dB calc.

General

Size12″
Voice coilsdual 1.8 Ω
RMS power1,200 W

Mounting dimensions

Ø≈ 12 3/8″cutout Ø11 3/16″mounting depth 6 11/16″magnet Ø≈ 7 1/4″
Cutout diameter11 3/16″
Mounting depth6 11/16″

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