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Rockford Fosgate P2D2-8 Punch P2 8" subwoofer with dual 2-ohm voice coils

Item # 5751P2D28

Rockford Fosgate showcases their fanatical commitment to sonic excellence in the Punch Series of speakers, amps,...

Rockford Fosgate showcases their fanatical commitment to sonic excellence in the Punch Series of speakers, amps,...

Item # 5751P2D28

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$149.99 each

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About the Rockford Fosgate P2D2-8

Jo Greene

Product highlights:

  • 8" subwoofer with dual 2-ohm voice coils
  • Kevlar® reinforced paper cone
  • Santoprene surround
  • hybrid StampCast basket provides strength while minimizing weight and resonance
  • power range: 75-250 watts RMS (500 watts peak power)
  • frequency response: 39-250 Hz
  • sensitivity: 83 dB
  • top-mount depth: 4-13/16"
  • sealed box volume: 0.2-0.3 cubic feet
  • ported box volume: 0.65 cubic feet
  • grille not included
  • warranty: 1 year
  • MFR # P2D2-8
  • Item # 5751P2D28

What's in the box:

Rockford Fosgate P2D2-8 owner's manual

If you need assistance accessing this owner's manual, please give us a call.
  • One 8" Dual 2-ohm voice coil subwoofer
  • Trim ring
  • Eight 1-1/8" Allen head screws
  • 4mm Allen head bit
  • Installation/Operation manual (English/ French/ Spanish/ German)

More details on the Rockford Fosgate P2D2-8

Pat M.

Product Research

Features
Enclosure Compatibility

Features

Overview: The Rockford Fosgate Punch P2D2-8 is an 8-inch subwoofer with dual 2Ω 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 2Ω Voice Coils: The dual 2Ω voice coils offer wiring flexibility; when wired in parallel the woofer presents a 1Ω load, when wired in series the woofer presents a 4Ω load.

Steel Basket: The P2D2-8 subwoofer features a StampCast steel basket for added rigidity.

Compression Terminals: The P2D2-8 features spring post terminals which accommodate speaker wire up to 10 gauge.

CEA-2031 Compliant: Power handling on the P2D2-8 subwoofer conforms to CEA-2031 industry standards. This means the subwoofer has the capacity to handle its rated 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 approximately 7/8 of an inch.

Enclosure Compatibility

Sealed Box: Rockford recommends a sealed enclosure with an optimum internal volume of 0.23 cubic feet (from 0.2 to 0.3 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 0.65 cubic feet using one 2" diameter x 8" long port; this yields a tuning frequency of 38.5 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).

The Rockford Fosgate P2D2-8 replaces these items:


Adding...
Rockford Fosgate P2D28

Rockford Fosgate P2D28

Punch Stage 2 8" subwoofer with dual 2-ohm voice coils
  • Dual 2-ohm voice coils
  • polypropylene cone with poly-foam surround
  • 50-200 watts RMS power range

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Customer Q&A

6 questions already asked

Q
2022 Accord EX-L Factory swap. I was planning on doing a direct replacement of my 8" factory sub on my 2022 Accord EX-L. Will this swap be adequately powered by the factory amp?
wayne  Apr 29, 2025
1 answer
A
Greetings Wayne. Thank you for your question. Factory amplifiers are not putting out much power to the factory subwoofer. This or any aftermarket subwoofer would be under powered by the factory amplifier.
thomas  Apr 29, 2025 (Staff)
Q
I have a sub box with 7 inch diameter holes. will these speakers fit. 8 inch subs?
michael  Sep 21, 2018
1 answer
A
It will be very tight. The Rockford Fosgate P2D2-8 have a cutout diameter requirement of 7 1/16". You will find this information, and more, by clicking the 'Details" tab on the woofer's main webpage.
ryan  Sep 27, 2018 (Staff)
Q
I purchased 4 P2D2-8 I was wondering What measurements would be perfect for all 4 in a Tahoe for Insane but Gorgeous sounding Bass???
justin  Aug 16, 2016
2 answers
A
I have not yet built my enclosure for my P2D2-8's, but RF supplies optimum enclosure specs for both sealed and ported applications. You can download the manual from Crutchfields website within the product page. You'll have PLENTY of room to lay those out however you want in that truck.
joshua  Aug 17, 2016
A
i used the smallest sealed Sound Ordinance box crutchfield sells. According to the subs specs, this box is slightly too big. I think it sounds just fine. These subs don't need much room in a box if its sealed. I bought this sub because it takes up very little space in my pickup truck. if i had a bit more room I would of went with a 10 inch.
stephen  Aug 16, 2016
Q
If the magnet pole vent is one inch away from the enclosure wall in a very small box, is this acceptable for cooling? Any other concerns to running this sub in a 6" deep box? Thanks
daniel  Jun 13, 2016
2 answers
A
This shouldn't effect the sub at all, I run mine in a 6" box and it's worked great for 6 months now
matt  Jun 13, 2016
A
Hi. The one inch clearance should be fine however, if you are concerned, prior to installation, drill very small holes in the back of the box to aid in the air circulation. Space them out approximately one inch apart randomly. Around 8-10 holes should help air flow nicely. John
john  Jun 13, 2016
Q
I have 4 8 inch subs , what amp should I get ?
tim g  May 23, 2014
1 answer
A
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.
greg  May 23, 2014 (Staff)
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Rockford Fosgate Punch P2D2-8
$149.99 each
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