Pride M.12 12 S1 (Re 0.4)

12″ subwoofer · 1 Ω · 1,200 W RMS

Fs 32.1 HzQts 0.52Vas 0.98 ft³Xmax 0.75″
The published specs don’t add up:

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 volume0.74 ft³ (21 L)
Qtc0.79
Fc49 Hz
F3 (−3 dB, no cabin gain)46 Hz
Example box (outside)14 3/16″ × 14 3/16″ × 10 7/16″
Open sealed box in designer

Ported

Net volume2.26 ft³ (64 L)
Tuning (Fb)27 Hz
Portslot 2 3/8 × 14 5/16″, 50 1/8″ long
Port velocity at 1,200 W76 ft/s
F3 (−3 dB, no cabin gain)24 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 15 13/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs32.1 Hz
Qts0.52
Qes0.58
Qms5.2
Vas0.98 ft³
Re0.4 Ω
Sd72.1 in²
Xmax0.75″
Vd53.9 in³ calc.
Mms272 g calc.
BL6.1 T·m calc.
EBP55 — sealed or ported calc.
Sensitivity, 1 W / 1 m84 dB calc.

General

Size12″
Voice coils1 Ω
RMS power1,200 W

Mounting dimensions

Ø12 7/16″cutout Ø11″mounting depth 6 5/16″magnet Ø6 11/16″
Cutout diameter11″
Mounting depth6 5/16″
Overall diameter12 7/16″
Magnet diameter6 11/16″

“≈” 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 Pride 12″ models