Rockford Fosgate P3SD4-12 Punch P3 Shallow 12″ DVC Sub
Shallow Punch P3 12-inch dual 4-ohm subwoofer with 400 watts RMS
$239.99
Overview
Get Punch P3 bass where depth is limited with the Rockford Fosgate P3SD4-12, a shallow 12-inch dual 4-ohm subwoofer rated 400 watts RMS and 800 watts max. Mounting depth is only 3.625 inches. A Kevlar-fiber-reinforced semi-pressed paper cone, spherically vented motor, and reversible diamond-cut cast aluminum trim ring round out the package. Dual 4-ohm coils wire to 2-ohm or 8-ohm loads.
Product details
Shallow Punch P3 for tight installs
P3SD4-12 (SKU P3SD412) is Rockford’s shallow Punch P3 12-inch dual 4-ohm woofer when a standard P3 will not fit. Continuous power handling is 400 W RMS / 800 W max (CEA-2031). Dual 4-ohm voice coils wire for 2-ohm or 8-ohm at the amp. Sensitivity is 86 dB (1 W/1 m). Fs is 45 Hz with 10.8 mm Xmax. Mounting depth is 3.625 inches (9.21 cm), which opens under-seat, spare-tire, and shallow-box installs that a conventional Punch P3 cannot clear.

Cone and motor
A Kevlar-fiber-reinforced semi-pressed paper cone with an ABS/Acrylic dustcap handles continuous bass duty. The high-temp 2.5-inch 4-layer voice coil sits in a spherically vented motor with a vented spider cavity for cooling under high excursion. Dual 10-AWG compression terminals accept large wire. Magnet weight is 52 ounces.

Fit notes
Cutout diameter is 11.125 inches (28.26 cm). The reversible diamond-cut cast aluminum trim ring is included so you can finish the install with either face out. Confirm enclosure volume against Rockford’s shallow-mount recommendations for your vehicle before cutting. An optional grille insert may be available separately. Woofer displacement is 0.071 cu. ft. (2.01 L).
Key features
- Shallow 12-inch Punch P3 subwoofer with dual 4-ohm voice coils
- 400 watts RMS / 800 watts max power handling (CEA-2031)
- Kevlar-fiber-reinforced semi-pressed paper cone with ABS/Acrylic dustcap
- Spherically vented motor with vented spider cavity
- 2.5-inch 4-layer high-temp voice coil
- Dual 10-AWG compression terminals
- Reversible diamond-cut cast aluminum trim ring included
- Mounting depth 3.625 in (9.21 cm); cutout 11.125 in (28.26 cm)
Specifications
| Weight | 13.25 lbs |
|---|---|
| Dimensions | 7.5 × 13.25 × 15.5 in |
| Size | 12 inch |
| Brand | Rockford Fosgate |
| Model | P3SD4-12 |
| SKU | P3SD412 |
| Product type | Subwoofer |
| Subwoofer type | Shallow |
| Voice coil | Dual 4-ohm |
| Power handling | 400 W RMS / 800 W max |
| Sensitivity (1 W/1 m) | 86 dB |
| Fs | 45 Hz |
| Xmax | 10.8 mm |
| Voice coil diameter | 2.5" 4-layer (63.5 mm) |
| Magnet weight | 52 oz |
| Mounting depth | 3.625" (9.21 cm) |
| Cutout diameter | 11.125" (28.26 cm) |
| Woofer displacement | 0.071 cu. ft. (2.01 L) |
| Speaker connector | Dual 10 AWG compression |
| Trim ring | Reversible diamond-cut cast aluminum (included) |
| Shipping weight | 16.3 lb (7.39 kg) |
Important notes
- Sold as a single woofer. Enclosure, amplifier, and wiring are sold separately.
- Wire dual 4-ohm coils for 2-ohm or 8-ohm final load to match your amplifier.
- Confirm shallow mounting depth and enclosure volume before cutting the vehicle.
What's in the box
- Rockford Fosgate P3SD4-12 subwoofer
- Reversible diamond-cut cast aluminum trim ring







