Rockford Fosgate P210D4

Punch Stage 2
10" subwoofer with dual 4-ohm voice coils

  • Rockford Fosgate P210D4


  • Rockford Fosgate P210D4


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Item #: 575P210D4

Review Summary

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Original price $79.99
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Our take on the Rockford Fosgate P210D4

by Ken Nail
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.

Step up and enjoy the big sound of Rockford Fosgate's Punch Stage 2 subwoofer. A molded polypropylene cone, heavy-duty foam surround, and stamped steel frame combine to ensure you'll enjoy reliable operation and heavy-duty bass.

The P210D4 10" subwoofer's dual voice coil design allows you to get the most out of your amplifier, whether you have a single sub or a multi-woofer system. However you use it, the sub's beefy internal parts ensure solid power handling and resistance to the heat buildup that can damage lesser speakers.

This pounder is optimized for big sound from small sealed or ported enclosures, a real plus if you've got limited space for a sub in your vehicle.

See more info on this item


  • 10" subwoofer with two 4-ohm voice coils
  • molded polypropylene cone with foam surround
  • 60-ounce magnet and aluminum voice coil former
  • power range: 50-250 RMS watts (125 watts per voice coil)
  • peak power: 500 watts
  • frequency response: 20-200 Hz
  • sensitivity: 84.2 dB
  • mounting depth: 5-1/16" without removable magnet cover (depth is 5-11/16" with cover)
  • sealed box volume: 0.65 cu. ft.
  • ported box volume: 1.25 cu. ft.
  • Recommended Q-Logic Box Type: 1, 2, 3
  • warranty: 1 year
  • Our 60-day money-back guarantee

Priced per speaker

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

Features and Specs
Size 10 -inch
Impedance 4 ohms
Cone Material Molded polypropylene
Surround Material Foam
Ideal Sealed Box Volume (cubic feet) 0.65
Ideal Ported Box Volume (cubic feet) 1.25
Port diameter (inches) 3
Port length (inches) 7.3
Free-Air No
Dual Voice Coil Yes
Sensitivity 84.2 dB at 1 watt
Frequency Response 20 - 200 Hz
RMS Power Range (Watts) 50-250
Peak Power Handling (Watts) 500
Top Mount Depth (inches) 5 5/16
Bottom Mount Depth (inches) N/A
Cutout Diameter or Length (inches) 9 1/8
Vas (liters) 31.9
Fs (Hz) 30
Qts 0.511
Xmax (millimeters) 11
Parts Warranty 1 Year
Labor Warranty 1 Year
Product Research
What's in the box?

Download owner's manual

  • 10" Dual voice coil woofer
  • Concealing ring
  • Twelve 1-1/4" self-tapping Allen head screws
  • Allen head bit
  • Installation and Operation manual (English / French / Spanish / German / Italian)

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.

Enclosure Compatibility


Woofer: The cone uses a parabolic injection molded polypropylene design. 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.

Anodized Aluminum Voice Coil Former: Aluminum voice coil formers offer superior heat dissipation over other commonly used materials. The hard-anodized finish on this 2" former increases its strength. These two factors combine to improve the overall power handling characteristics of the subwoofer.

Precision Stamped CRS Basket: Reinforced cold roll steel basket legs dampen unwanted resonance for better bass coupling.

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.

Removable Magnet Cover: The cosmetic magnet cover can be removed when additional mounting clearance is required. With the magnet cover installed, the woofer has the following dimensions:

  • Magnet Diameter: 7.109"
  • Depth as top: 5.643"

Spring Posts: The heavy-duty spring posts will accept pin connectors and bare wire up to 10 gauge.

Concealing Ring: Once the subwoofer is mounted, the concealing ring can be installed to hide the mounting screws, giving the subwoofer a finished look. With the ring in place the mounting height increases to 0.844".

Enclosure Compatibility

Sealed Box Volume: The sealed box sizes recommended by Rockford Fosgate range from 0.5 cu/ft to 1.0 cu/ft. The ideal size recommended is 0.65 cu/ft.

Recommended Vented Box Volume: The vented box sizes recommended by Rockford Fosgate range from 1.0 cu/ft to 1.5 cu/ft. The ideal size recommended is 1.25 cu/ft with one 3" diameter x 7.3" long port. A 1.0 cu/ft box requires a 3" diameter x 9.6" long port; a 1.5 cu/ft box requires a 3" diameter x 5.7" long port.

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Rockford Fosgate P210D4 Reviews

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Filter by rating:
5 out of 5

Good low bass.

Written By Joel, Center, TX on Tuesday, January 09, 2007
Crutchfield Customer Review (What's this?)
These subwoofers really hit hard. I have them on the RF punch 325.2 amp, and after two days with them, I can already tell these are great speakers. They are exceptionally good on low notes and will vibrate you crazy.... I recommend them 100%.
3 out of 3 people found this helpful
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5 out of 5


Written By tim, centervill, ohio on Wednesday, February 01, 2006
This sub is defently one of the best subs I have ever owned. My chevy s-10 hits so hard with these.
14 out of 25 people found this helpful
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