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Rockford Fosgate P312D2 Punch Stage 3
12" subwoofer with dual 2-ohm voice coils

Item # 575P312D2

Want to know what a knockout blow sounds like? Then just listen to this "Punch" from Rockford Fosgate.

Want to know what a knockout blow sounds like? Then just listen to this "Punch" from Rockford Fosgate.

Item # 575P312D2

About the Rockford Fosgate P312D2

Steven Johnson
Want to know what a knockout blow sounds like? Then just listen to this "Punch" from Rockford Fosgate. Muscular Punch Stage 3 subwoofers are big, bad, and loud! With 2-1/2" aluminum voice coils, huge double-stacked magnet structures, and cast-aluminum frames, they'll handle lots of power yet deliver the kind of precise, accurate lows you expect from Rockford Fosgate.

Got enough juice? Get an amp for your new sub Want to know what a knockout blow sounds like? Then just listen to this "Punch" from Rockford Fosgate. Muscular Punch Stage 3 subwoofers are big, bad, and loud! With 2-1/2" aluminum voice coils, huge double-stacked magnet structures, and cast-aluminum frames, they'll handle lots of power yet deliver the kind of precise, accurate lows you expect from Rockford Fosgate.

The P312D2 12" subwoofer features a polypropylene cone and black foam surround that combine for full excursion and maximum bass. The dual 2-ohm voice coil design lets you wire for maximum output or a multiple woofer setup. These hard hitters sound great in sealed or ported boxes.

Details:
  • 12" subwoofer with dual 2-ohm voice coils
  • molded polypropylene woofer cone with foam surround
  • 102-ounce double stacked magnet structure
  • frequency response: 20-200 Hz
  • power range: 100-500 watts RMS (250 watts per coil)
  • peak power handling: 1,000 watts
  • sensitivity: 87 dB
  • top-mount depth: 6-3/8"
  • sealed box volume: 0.75 cubic feet
  • ported box volume: 1.75 cubic feet
  • Recommended Q-Logic Box Type: 1, 2, 3
  • warranty: 1 year

Priced per speaker

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What's in the box:

  • One 12" woofer
  • 1 Concealing ring
  • 12 Self-tapping screws
  • 1 Allen bit
  • 4 Self-adhesive foam gasket sections
  • Installation and Operation manual (English/French/Spanish/German/Italian)
  • "Team RF" window sticker
MFR #P312D2

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Features
Enclosure Compatibility

Features

Dual 2-ohm Voice Coils: This woofer features dual 2-ohm voice coils that offer flexibility in wiring. When the voice coils are wired in parallel with each other, the woofer presents a 1-ohm mono load. When the voice coils are wired in series with each other, the woofer presents a 4-ohm mono load. In addition, each coil may be connected to a different amplifier channel and each channel will see a 2-ohm load.

Woofer: The cone is constructed of molded polypropylene. Polypropylene is lightweight and strong, giving the woofer high power handling and low distortion.

High Excursion Large Roll Surround: A large edge roll surround allows Punch woofers to produce 20% more linear excursion than standard surrounds, resulting in more bass output.

Parabolic Triangular Cone Geometry Support System: By bonding a polypropylene parabolic dust cap of equivalent size to the cone body, a balanced triangular structure is created. This system reduces piston flex and eliminates cone distortion.

Linear Spider: A compliant linear spider improves mechanical stability under high excursion, maintaining consistent excursion characteristics. This eliminates the need for a "break-in period."

Spider Support Ring: This integrated ring increases the bonding surface area between the voice coil former and spider, establishing a stronger joint. The result is increased mechanical power handling under high power/high excursion situations.

Anodized Aluminum Voice Coil Former: Aluminum voice coil formers offer superior heat dissipation over other commonly used materials. The hard-anodized finish increases the former strength. These two factors combine to improve the overall power handling characteristics of the subwoofer.

Precision Cast Aluminum Alloy Basket: A two-piece "basket in a bucket" design adds rigidity and eliminates multiple acoustic resonances. Additionally, the large aluminum mass helps reduce voice coil former temperature and increase power handling.

Double Stacked Magnet Motor Assembly: The stacked magnet assembly is used to create a powerful linear motor with increased excursion capability for superior bass output.

Spring Posts: The heavy-duty spring posts will accept pin connectors and bare wire.

Concealing Ring: Once the subwoofer is mounted, the concealing ring can be installed to hide the mounting screws, giving the subwoofer a finished look.

Enclosure Compatibility

Recommended Sealed Box Volume: The sealed box sizes recommended by Rockford Fosgate range from 0.65 cu/ft to 0.85 cu/ft. Within this range, the ideal size recommended by Rockford Fosgate is 0.75 cu/ft, so this is the enclosure recommended by Crutchfield.

Recommended Vented Box Volume: The vented box sizes recommended by Rockford Fosgate range from 1.25 cu/ft to 2.0 cu/ft. Within this range, the ideal size recommended by Rockford Fosgate is 1.75 cu/ft, so this is the enclosure recommended by Crutchfield. One 4" diameter x 11" long port should be used with a 1.75 cu/ft enclosure.

Recommended Single Reflex Bandpass Volume: Rockford Fosgate's enclosure chart lists three compatible bandpass enclosures. The highlighted bandpass enclosure has a sealed chamber volume of 1.0 cu/ft, a vented chamber volume of 0.7 cu/ft and a single 4" diameter x 15.75" long port. The smallest recommended enclosure has a sealed chamber volume of 0.85 cu/ft, a vented chamber volume of 0.4 cu/ft and a single 4" diameter x 30" long port. The largest recommended enclosure has a sealed chamber volume of 1.2 cu/ft, a vented chamber volume of 0.9 cu/ft and a single 4" diameter x 13.25" long port.

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