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Rockford Fosgate P3-1X12 Punch P3 ported enclosure with 12" sub

Item # 5751P31X12

16 questions - 25 answers

Item # 5751P31X12

In stock

About the Rockford Fosgate P3-1X12

Jo Greene

Standout performance

Rockford Fosgate's P3-1X12 ported enclosure offers the extra power handling and advanced heat dissipation of a Punch P3 12" sub, so you'll hear impressive, crowd-drawing bass that just won't quit.

Heat-sink aluminum cone

The enclosure houses a Punch P3 12" sub, with a rigid anodized aluminum cone that holds its shape through heavy play, while staying light and responsive. The aluminum cone acts as a giant heat sink, and works alongside advanced cooling vents to direct heat away from the copper-clad aluminum voice coils. These innovative cooling techniques, plus a heavy-duty motor assembly, let this sub handle up to 600 watts RMS without flinching. The sub's dual voice coils are wired for a 1-ohm total impedance, so make sure your amp can power this enclosure safely.

Advanced port design

Rugged 5/8" medium-density fiberboard construction means this enclosure will hold strong for fat, heavy bass. Industrial-grade black carpet provides a clean, finished look, and protects your trunk from nicks and scratches. The spring terminals will accept bare wire, pin connectors, or banana plugs. This enclosure uses an advanced port design that promotes generous air movement, while reducing distortion-causing port noise, so you hear louder, deeper bass. Add an amp and some wiring, and feel the thick low end this enclosure adds to your ride.

Product highlights:

  • ported hatchback-style enclosure with one 12" Punch P3 subwoofer
  • 5/8" medium density fiberboard construction covered with black carpet
  • 1-ohm total impedance
  • power handling: 300-600 watts RMS (1200 watts peak power)
  • frequency response: 27-250 Hz
  • sensitivity: 85 dB
  • 19-1/8"W x 15-1/8"H x 16-5/8"D1 x 14"D2
  • warranty: 1 year
  • MFR # P3-1X12

What's in the box:

  • Vented subwoofer enclosure loaded with one Punch P3D2-12 12" Woofer
  • Installation and Operation Instructions

Customer reviews for Rockford Fosgate P3-1X12

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More details on the Rockford Fosgate P3-1X12

Pat M.

Features & specs

Woofer Size (inches) 12
Speakers Per Box 1
Woofer Material Anodized Aluminum
Enclosure Type Ported
Color Black
Pieces in System 1
Width (inches) 19-1/8
Height (inches) 15-1/8
Depth (inches) 16-5/8
Connector Type Spring post
Frequency Response 27-250 Hz
Power Range (Watts RMS) 600
Maximum Wattage 1200
Sensitivity 85 dB
Impedance 1 ohms
Parts Warranty 1 Year
Labor Warranty 1 Year
The Rockford Fosgate P3-1X12 replaces these items:

Product Research


Punch Woofer: The enclosure houses one front-firing Rockford Fosgate Punch P3D2-12 12" subwoofer. The dual 2-ohm voice coils are internally wired in parallel to present a 1-ohm load. The sub features a hybrid StampCast basket, an Anodized aluminum cone, and Santoprene surround. An anodized aluminum voice coil former and spider venting help keep the subwoofer cool.

Spider: Dual spiders made from tear and fatigue resistant poly-cotton improve mechanical stability under high excursion, maintaining consistent excursion characteristics.

Solid MDF Construction: The enclosure is constructed of high quality 5/8" MDF (medium-density fiberboard), which resists flexing and has anti-resonant qualities.

Vented Enclosure: The vented enclosure is aided by precision construction through computer design. The enclosure consists of one front firing 12" Punch P3 series subwoofer with a proprietary high-flow, low-noise port. The speaker terminals are located on the left side of the box (when facing the box). The box is covered in black carpet.

Tuned Port: The enclosure uses a front-firing proprietary high-flow, low-noise port to help produce deep and loud bass efficiently.

Box Carpeting: The enclosure is finished with high-density carpeting for superior durability. The carpet is black.

Speaker Terminal: The subwoofer enclosure uses one pair of high current, spring loaded binding posts. The binding posts are located on the left side of the box and will accept pin connectors, single or dual banana plugs, or bare wire up to 10 gauge.

Power Handling: The subwoofer can handle up to 600 watts RMS; 1200 watts peak power.

CEA-2031 Compliant: Power handling on the P3D2-12 subwoofer conforms to CEA-2031 industry standards. This means the subwoofer has the capacity to handle its rated power under continuous demand, not just for an instant.

Dimensions: The depth dimensions listed in Features & Specs include the subwoofer's trim ring, which adds approximately 7/8 of an inch. The depth of just the enclosure is 15-3/4 inches at the base and 13-1/8 inches at the top.

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Customer Q&A

16 questions already asked

Will this not work with a JL Audio RD900/5? Looking for a boxed sub in the 12-15 inch range, that I can power with the fifth channel on the RD-900 and get good results. Thanks for your help
daniel j  Nov 21, 2021
2 answers
i don't believe so, amp needs to be 1 ohm stable to power this sub, there are options to get the sub at 2 ohms but i don't believe this package has that
conor  Nov 21, 2021
This sub is 1ohm resistance. Looks like your amp is 2ohm. Check your amp specs for that and match the sub to that same resistance.
daniel  Nov 21, 2021
This can be opened up and re-wired in series to run at 4 ohms correct?
john  Sep 06, 2021
2 answers
yes it comes wired to 1 ohm, but can be rewired to 4 ohms, i suggest just buying the sub without the box for this
conor  Nov 21, 2021
We have not received any answers from other customers on your question. I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They should be able to help answer your question.
thomas  Sep 08, 2021 (Staff)
I have this P3 12in in the box. I currently have a kicker 800.1 amp. Will it work on this set up or need to wire sub in parallel?
chad  Apr 24, 2021
2 answers
The P3 is wired to 1 ohm and the kicker 800.1 is 1 ohm stable so it should be plug and play. Just set gains accordingly and enjoy!
dale wayne  Apr 24, 2021
If your amp is 1ohm stable it will work great
justin  Apr 24, 2021
What is the cu ft of the box?
ogtriple  Apr 05, 2021
1 answer
We did not research the internal box volume since Rockford Fosgate already installed a sub into it. The sub that is in it has a recommended internal volume of 1.79 cubic feet for a ported enclosure which indicates this is the likely volume inside the box.
jason  May 01, 2021 (Staff)
Can i hook this up to my jbl gtx 500 amp?
william  Feb 06, 2021
1 answer
The JBL GTX500 amp does not support 1 ohm loads and should not be used with this subwoofer box. I recommend contacting an advisor by calling 1-800-324-9695 to get a personal recommendation on a subwoofer and box for your amp
jason  Feb 27, 2021 (Staff)
I have a Rockford Fosgate Prime R1200 in the car, would this be a good match with this sub? If so, any wiring/tweaks that I would have to do?
jaime  Dec 26, 2020
1 answer
This box has a P3D2-12 subwoofer wired to a 1 ohm load. This will not work with your amp but if you change the wiring of the voice coils from parallel to series, then it will work with your amp.
jason  Jan 12, 2021 (Staff)
Does the P3D2-12 woofer sound better, and go lower in this enclosure or when installed in the Sound Ordnance Bass Bunker BB12-200V vented enclosure?
lanny  Jun 28, 2020
2 answers
The Rockford box is built to exact specs. It sounds great and hits low. Only issue were the speaker vents rattled a bit since they are metal. I took them off
michael  Jun 28, 2020
It hits very low, awesome sub
joe  Jun 28, 2020
Does the Rockford fosgate loaded P3 come with the mesh grill?
onenutwonder  May 26, 2019
3 answers
No i does not, you have to buy it separately for like $20 but it's worth it.
alexis  May 27, 2019
No it doesn't but one is available through Crutchfield
armando  May 26, 2019
It does not. But Crutchfield does carry one that is easy to install. Highly recomended to protect the cone from items in your trunk while still looking good.
nathen  May 26, 2019
What is the port tuning and how low does it play while still having some punch? I have a p300-12 and it lacks in the lows
jeremy  Jul 13, 2018
2 answers
We checked with Rockford Fosgate and confirmed that the enclosure is tuned at 38Hz. I hope that helps. My bio:
ryan  Jul 25, 2018 (Staff)
This lacks in nothing, when the bass gets lower you can really tell it. Buy one of these and a Rockford Fosgate Prime amp you won't be disappointed! You'll be heard way before you're seen arriving!!
armando  Jul 19, 2018
Do they make a grille for this speaker?
gordon  Oct 15, 2017
1 answer
Yes: You'll also find the grill listed under the "Accessories" tab on the subwoofer's main webpage. I hope that helps. My Bio:
ryan  Oct 20, 2017 (Staff)
I have the P500X1BD amp and this sub. Can I bridge my amp to get the peak 1200 watts?
david  Oct 14, 2017
2 answers
Enter answer is yes.
auldain  Oct 14, 2017
It should work fine but not sure about getting that 1200 peak out of that amp
thomas  Oct 14, 2017
What would be a good amp for this?
noah  Jun 04, 2017
1 answer
Thanks for your question. For information on selecting the best amp for your subs I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences between the amp models and help you make the best choice for your system.
kristina  Jun 04, 2017 (Staff)
According to the specs, this is a dual 2ohm voice coil sub that's internally wired parallel to 1ohm. My amp is only stable to 2ohm. Can I open this up when I get it and wire it in series to get 2ohms? Thanks in advance.
cathrine  Feb 12, 2015
2 answers
No. Dual 2 ohm sub can be wired to 1ohm or 4 ohm
justin  Apr 24, 2021
We have not received any answers from other customers on your question. I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They should be able to help answer your question.
jeff  Feb 17, 2015 (Staff)
I drive a bmw 325I with a factory eight inch powered subwoofer what would be the best amp too drive this sub? I know I'll need a line output converter since I've installed many systems has anyone ran a set up like this? and what are the best product's to use ?my batteries in the trench so I have all the wiring I'll need thank you for your time
jason  Jun 29, 2014
2 answers
Thanks for your question. For information on selecting the best amp for your subs I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences between the amp models and help you make the best choice for your system.
kristina  Jul 02, 2014 (Staff)
I forwarded your question to an Advisor and they responded with the following: If you have all the wiring needs, you'll just need the line output converter to use it with your factory radio. I'd go with the AudioControl LC2i and you can check it out here: If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat.
kristina  Jul 01, 2014 (Staff)

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