Rockford Fosgate Punch P3D2-12

12″ subwoofer · dual 2 Ω · 600 W RMS

Fs 26.5 HzQts 0.49Vas 2.04 ft³Xmax 0.60″

Recommended box

For a sedan, one sub, 600 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 volume1.24 ft³ (35 L)
Qtc0.80
Fc43 Hz
F3 (−3 dB, no cabin gain)41 Hz
Example box (outside)14 9/16″ × 14 9/16″ × 14 13/16″
Open sealed box in designer

Ported

Net volume3.43 ft³ (97 L)
Tuning (Fb)25 Hz
Portslot 2 3/8 × 14 5/16″, 37 7/16″ long
Port velocity at 600 W63 ft/s
F3 (−3 dB, no cabin gain)23 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 19 1/4″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs26.5 Hz
Qts0.49
Qes0.53
Qms6.7
Vas2.04 ft³
Re (one coil)1.6 Ω
Sd88.4 in²
Xmax0.60″
Vd52.9 in³ calc.
Mms288 g calc.
BL12 T·m calc.
EBP50 — sealed or ported calc.
Sensitivity, 1 W / 1 m85.1 dB calc.

General

Size12″
Voice coilsdual 2 Ω
RMS power600 W

Mounting dimensions

Ø≈ 12 3/8″cutout Ø11 1/4″mounting depth 6 5/8″magnet Ø≈ 7 5/16″
Cutout diameter11 1/4″
Mounting depth6 5/8″

“≈” 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 Rockford Fosgate 12″ models