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Rockford Fosgate P2D4-12

Punch P2 12" subwoofer with dual 4-ohm voice coils

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  • Rockford Fosgate P2D4-12

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  • Rockford Fosgate P2D4-12

  • Rockford Fosgate P2D4-12

  • Rockford Fosgate P2D4-12

  • Rockford Fosgate P2D4-12

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Our take on the Rockford Fosgate P2D4-12

by Jo Greene
Rockford Fosgate

What's a component sub and why would I want one?

A component sub is simply a speaker that's designed to reproduce bass once it's installed in a compatible enclosure. Think about the impact of a movie soundtrack in a big theater or even in your own home HDTV setup. A component sub can add the same kind of power to the music in your car. And a car sub is not all about the boom that you hear on a street corner (although that's cool too) - you can pair a component sub with your choice of enclosure to get bass just the way you like it, from tight and punchy to fat and loose. And once you experience music in your car with a well-tuned subwoofer, you'll never go back.

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.

Cutaway view

Bulletproof bass

Engineers at Rockford Fosgate designed the P2D4-12 12" subwoofer to dish out the kind of powerful low end you crave in your ride. Its responsive paper cone is reinforced with the same Kevlar® fibers used in bulletproof vests so you get the best of both worlds — warm bass that's exceptionally hard-hitting. 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.

Made for heavy excursion

This P2 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." Special venting keeps the copper-clad aluminum voice coils cool through heavy use for consistent bass performance over time.

The dual 4-ohm voice coils allow you to wire the sub for 2-ohm impedance to work with a mono sub amp, or for 8-ohm impedance if you're using multiple subs. The P2D4-12 sub works equally well in a sealed or ported enclosure, so you can choose the kind of bass you want for your system.

See more info on this item

Highlights:

  • 12" subwoofer with dual 4-ohm voice coils
  • Kevlar® reinforced paper cone
  • Santoprene surround
  • hybrid StampCast basket provides strength while minimizing weight and resonance
  • power range: 150-400 watts RMS (800 watts peak power)
  • frequency response: 27-250 Hz
  • sensitivity: 86 dB
  • top-mount depth: 6-3/8"
  • sealed box volume: 0.70-1.80 cubic feet
  • ported box volume: 1.79 cubic feet
  • warranty: 1 year
  • Our 60-day money-back guarantee

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
Size
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12 -inch
Impedance
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4 ohms
Cone Material
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Kevlar reinforced paper
Surround Material
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Santoprene
Ideal Sealed Box Volume (cubic feet)
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1.02
Ideal Ported Box Volume (cubic feet)
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1.79
Port diameter (inches)
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4
Port length (inches)
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10
Free-Air
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No
Dual Voice Coil
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Yes
Sensitivity
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86 dB at 1 watt
Frequency Response
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27 - 250 Hz
RMS Power Range (Watts)
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150-400
Peak Power Handling (Watts)
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800
Top Mount Depth (inches)
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6 3/8
Bottom Mount Depth (inches)
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N/A
Cutout Diameter or Length (inches)
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11 1/16
Vas (liters)
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81.5
Fs (Hz)
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27.2
Qts
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0.54
Xmax (millimeters)
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10
Parts Warranty
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1 Year
Labor Warranty
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1 Year
Product Research
What's in the box?

Download owner's manual

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

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features
Enclosure Compatibility

Features

Overview: The Rockford Fosgate Punch P2D4-12 is a 12-inch subwoofer with dual 4Ω voice coils. The sub features a StampCast steel frame, quick-release compression terminals, a Kevlar fiber reinforced paper 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 mono load.

Steel Basket: The P2D4-12 subwoofer features a StampCast steel basket for added rigidity.

Compression Terminals: The P2D4-12 features spring post terminals which accommodate speaker wire up to 10 gauge.

CEA-2031 Compliant: Power handling on the P2D4-12 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 over 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 0.7 to 1.8 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 34 Hz).

 
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Rockford Fosgate P2D4-12 Reviews

Average Customer Review:

7 people say:

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Filter by rating:
5 out of 5

Sub

Written By Rob, Nelson Va. on Tuesday, March 18, 2014
 
This sub gives you the punch and the low end is perfect. You cant beat its price and value.
Pros:
Great sound for any application
Cons:
None
1 out of 1 people found this helpful
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"Coolness Factor"
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5 out of 5

Amazing subwoofer

Written By Albertc, phoenix, Az on Thursday, January 09, 2014
Crutchfield Customer Review (What's this?)
 
This sub hits sooo hard Rockford always comes through with amazing products and cructhfield made the purchase simple and affordable
Pros:
Huge bass
1 out of 1 people found this helpful
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"Coolness Factor"
Build Quality
Ease of Use
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Value
 
5 out of 5

Rockford Fosgate P2D4 Hits Hard!!

Written By Ryan, Newburgh, NY on Monday, August 19, 2013
Crutchfield Customer Review (What's this?)
 
I have this hooked up with a kicker amp pushing 200 watts and this thing can get loud. My system is pushing a total of 1100 watts of power total. My parents always know when I am coming home because they can hear me coming from a mile down the road! This sub is awesome and very loud but don't expect to rattle windows but it you will feel it in the car for sure. I have it in a ported box and there is nothing wrong with it, I have not had any issues with it at all, no over heating or nothing, Great Product, Well done Rockford, Well done.
Pros:
Loud, Cool,
Cons:
Nothing
1 out of 1 people found this helpful
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4 out of 5

Surround separated.

Written By rudedog, Houston,Tx on Tuesday, October 02, 2012
Crutchfield Customer Review (What's this?)
 
Bought this sub about a year ago and had it installed in a 1.0 cu. ft. sealed box pushed by a JL 500v2 amp. After the break-in the sub started to really shine, good bass but I always felt it could be better. Don't get me wrong it's a very good sub I just wanted something that would hit a little harder. I listen to rap, pop, metal, and classical and it did a very good job especially when playing metal. But! After about a year I noticed the bass wasn't as hard and it sounded like something rattling. Looking at it I noticed the rubber surround was starting to separate from the cone. It never got pushed very hard so that left me disappointed. Up until then other than wanting a little more bass, the sub was great. Could have just been a defect because I have had two other RF subs in the past and both worked great.
Pros:
Tight bass
Cons:
surround separated(could be defect)
2 out of 2 people found this helpful
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5 out of 5

awesome subs

Written By Alex, Denver Colorado on Monday, May 21, 2012
 
I have to 12 "p2s in my car they are great subs the dual voice coil gives you lots of options for ohm load and different wireing i have them them set up 2 ohms with 1800 watt amp it sucks more then the amp can give.Ive destroyed a diamod amp and two of these in 2 years, but both we my fault. The first one i didnt know about duel voice coils and only hooked up one side. It worked great for a couple weeks but it made the sub work twice as hard which caused it to smoke and i melted the coil. the other got destroyed from poundng aginsts something in my trunk. After i hooked them up correctly and cleaned my truck they hit hard in cold or hot weather (in colorado we have both sometimes in the same day!) im a firm believe in rockford. had a few different subs over the years and rockford always delivers. increadble lows great high spend a few extra bucks and get these promise you wont be dissapointed
Pros:
Sound looks relibility durability over all great sub
Cons:
absolutly none as long as you hook up dvc correctly read the manuel with it for different ohm load wiring diagrams
1 out of 1 people found this helpful
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4 out of 5

Loud SubWoofer

Written By ReZaK, Pittsburgh, PA on Tuesday, April 03, 2012
 
This Subwoofer is one of the Loudest Subs ive bought so far. I had 2 15in P1's and one of these compare to them loud wise. The only thing i dont like about this subwoofer is how warm the coils get after about 30 mins of use. Ive never had a sub run this warm, its not like burning hot but you can feel its getting warm so sooner or later im gonna melt one of the coils. I have a Rockford Fosgate R750.1D Hooked to it running at 2 ohms which the amp is putting out about 500 watts, so it says but i think this amp pushes more then its rated. But still they need to build it better so they dont over heat. For the Money, its worth buying. Very Loud
Pros:
Loudness, Clearness
Cons:
Heating Issue
1 out of 2 people found this helpful
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5 out of 5

Awesome!

Written By Anonymous, Lodi, CA on Saturday, January 28, 2012
Crutchfield Customer Review (What's this?)
 
Bought for my son's mini truck, running a Pyle 2ch Bridged amp. This woof is a monster, had to put a 30amp fuse in the Pyle..
1 out of 4 people found this helpful
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For a more in-depth review and enhanced detailed information on the Rockford Fosgate P2D4-12, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_5751P2D412/Rockford-Fosgate-P2D4-12.html ).