Rockford Fosgate P3D4-12 Punch P3 12″ subwoofer with dual 4-ohm voice coils

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Description

Standout performance

Rockford Fosgate showcases their fanatical commitment to sonic excellence in the Punch Series of speakers, amps, and subs. If you like to listen to potent, powerful music — and feel it too — Punch components will give you impressive sound that’ll stand out in a crowd.

Exploded view

Designed for deeper, louder bass

Rockford Fosgate designed the P3D4-12 12″ subwoofer to stay strong even when the bass gets hot. This Punch P3 sub features a rigid anodized aluminum cone that holds its shape through heavy play, while staying light and responsive. Rockford Fosgate uses a new technique to attach the oversized rubber surround to the cone that increases available cone area up to 25%, so this sub can push more air for even bigger bass.

Heat-sink cone

The aluminum cone acts as a giant heat sink, directing heat away from the copper-clad aluminum voice coils. Special venting keeps the voice coils cool, so you get incredibly consistent bass performance over time. This P3 sub features an extended pole piece and bumped backplate that leaves more room for heavy excursion, so it’ll hit deeper lows without “bottoming out.”

The dual 4-ohm voice coils allow you to wire the sub for 2-ohm impedance to get maximum power output, or for 8-ohm impedance if you’re using multiple subs. The P3D4-12 sub works equally well in a sealed or ported enclosure, so you can choose the kind of bass you want for your system.

Product highlights:

  • Featured in our article: Best 12″ car subwoofers for 2025
  • 12″ subwoofer with dual 4-ohm voice coils
  • anodized aluminum cone with Santoprene rubber surround
  • hybrid StampCast basket provides strength while minimizing weight and resonance
  • Vertical Attach Surround Technique (VAST™) increases cone area
  • power range: 300-600 watts RMS (1200 watts peak power)
  • frequency response: 28-250 Hz
  • sensitivity: 85 dB
  • top-mount depth: 6-11/16″
  • sealed box volume: .75-1.25 cubic feet
  • ported box volume: 1.79 cubic feet
  • grille not included
  • warranty: 1 year
  • MFR # P3D4-12
  • Item # 5751P3D412

What’s in the box:

Rockford Fosgate P3D4-12 owner’s manual

If you need assistance accessing this owner’s manual, please give us a call.

  • One 12″ Dual 4-ohm voice coil subwoofer
  • Trim ring
  • Twelve 1-1/8″ Allen head screws
  • 4mm Allen head bit
  • Installation/Operation manual (English/ French/ Spanish/ German)

Features & specs

Features and Specs
Size 12-inch
Impedance (Ohms) 2, 8
Cone Material Anodized Aluminum
Surround Material Santoprene
Basket Material Hybrid
Grille None included
Free-Air No
Dual Voice Coil Yes
Sensitivity 85 dB at 1 watt
Frequency Response 28 – 250 Hz
Max RMS Power Handling 600
Peak Power Handling (Watts) 1200
Top Mount Depth (inches) 6 11/16
Bottom Mount Depth (inches) N/A
Cutout Diameter or Length (inches) 11 1/16
Frame Width 13.095
Frame Length 13.095
Vas (liters) 57.7
Fs (Hz) 27.7
Qts 0.52
Xmax (millimeters) 13.9
Parts Warranty 1 Year
Labor Warranty 1 Year
Box Requirements
Ideal Sealed Box Volume (cubic feet) 1.02
Minimum Sealed Box Volume (cubic feet) 0.75
Maximum Sealed Box Volume (cubic feet) 1.27
Ideal Ported Box Volume (cubic feet) 1.79
Minimum Ported Box Volume (cubic feet) N/A
Maximum Ported Box Volume (cubic feet) N/A
Port diameter (inches) 4
Port length (inches) 10
The Rockford Fosgate P3D4-12 replaces these items:

  • MTX T812-44
  • Rockford Fosgate P3SD412
  • Rockford Fosgate P3D412
  • Rockford Fosgate T112D4

Product Research

Features
Enclosure Compatibility

Features

Overview: The Rockford Fosgate Punch P3D4-12 is a 12-inch subwoofer with dual 4Ω voice coils. The sub features a hybrid StampCast basket, quick-release compression terminals, anodized aluminum cone, and Santoprene surround. An anodized aluminum voice coil former and spider venting help keep the subwoofer cool.

Dual 4Ω Voice Coils: The dual 4Ω voice coils offer wiring flexibility; when wired in parallel the woofer presents a 2Ω load, when wired in series the woofer presents an 8Ω load.

Compression Terminals: The P3D4-12 features spring post terminals which accommodate speaker wire up to 10 gauge.

CEA-2031 Compliant: Power handling on the P3D4-12 subwoofer conforms to CEA-2031 industry standards. This means the subwoofer has the capacity to handle power under continuous demand, not instantaneous power handling, that over time, can damage voice coils.

FlexFit Basket: The Flex Fit frame utilizes slots (where possible) instead of single screw sized holes; allowing slight adjustment of the speaker when mounted.

Trim Ring: To improve the cosmetic look, a decorative trim ring is included that mounts over the flange of the woofer. When using the cast aluminum trim ring the woofer is first mounted with four screws, then the ring is placed on top of the woofer, aligning the final four holes of the woofer with ring. The other four screws are used for these holes to mount the ring and woofer to the enclosure. Without the trim ring the mounting height of the woofer is just under 7/8 of an inch, with the trim ring it’s approximately 1-1/16 inches. The diameter of the trim ring is 13-5/16 inches.

Enclosure Compatibility

Sealed Box: Rockford recommends a sealed enclosure with an optimum internal volume of 1.02 cubic feet (from 0.75 to 1.25 cubic feet is acceptable). Sealed enclosures provide the most control over a woofer, will handle a lot of power, and provide accurate sonic reproduction, making them suitable to all types of music.

Ported Box: Rockford recommends a ported enclosure with an internal volume of 1.79 cubic feet using one 4″ diameter x 10″ long port; this yields a tuning frequency of 40 Hz. Ported (or vented) enclosures typically provide better overall efficiency than sealed so they are suitable for use with smaller amplifiers, giving you more bass output from less power. However, this efficiency comes at the expense of very low frequency output (below 33 Hz).

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