Pride M.20 12 (table: Re 0.4, SVC)

12″ subwoofer · 2,000 W RMS

Fs 29.5 HzQts 0.32Vas 1.17 ft³Xmax 0.91″
The published specs don’t add up:

Recommended box

For a sedan, one sub, 2,000 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 volume0.85 ft³ (24 L)
Qtc0.49
Fc46 Hz
F3 (−3 dB, no cabin gain)75 Hz
Example box (outside)15 3/8″ × 15 3/8″ × 9 7/8″
Open sealed box in designer

Ported

Net volume1.59 ft³ (45 L)
Tuning (Fb)28 Hz
Portslot 1 9/16 × 14 3/4″, 45 3/4″ long
Port velocity at 2,000 W127 ft/s
F3 (−3 dB, no cabin gain)27 Hz
Example box (outside)31 1/2″ × 16 1/8″ × 11 3/8″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs29.5 Hz
Qts0.32
Qes0.34
Qms4.31
Vas1.17 ft³
Re0.4 Ω
Sd82.2 in²
Xmax0.91″
Vd74.4 in³ calc.
Mms349 g calc.
BL8.7 T·m calc.
EBP87 — sealed or ported calc.
Sensitivity, 1 W / 1 m86 dB calc.

General

Size12″
Voice coils—
RMS power2,000 W

Mounting dimensions

Ø12 13/16″cutout Ø12 1/8″mounting depth 7 3/8″magnet Ø8 1/4″
Cutout diameter12 1/8″
Mounting depth7 3/8″
Overall diameter12 13/16″
Magnet diameter8 1/4″

“≈” 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