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Rockford Fosgate R2SD2-10

Prime R2 Series 10" shallow-mount sub with dual 2-ohm voice coils

Item #: 575R2SD210

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5 Reviews | 1 question - 2 answers



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Rockford Fosgate's Prime R2 shallow-mount subs deliver satisfying bass even in smaller cars where space is tight. A special elevated motor structure lets these low-profile subs work in extremely compact enclosures, while still handling plenty of power.

The R2SD2-10 sub features a 10" mica-injected polypropylene cone that works with a high-density poly-foam surround to punch out fat, deep notes. This shallow-mount workhorse will handle up to 200 watts RMS, with a mounting depth of only 3-1/2". Rockford Fosgate stitches the tinsel leads that carry the signal to the voice coils directly into the cone, so they'll hang tough through heavy use. The stamped solid-steel frame offers the same venting found in standard-mount Rockford Fosgate subs to keep this sub running cool.

Dual 2-ohm voice coils allow you to wire this sub for 1- or 4-ohm impedance, giving you more flexibility in setting up your system. Rockford Fosgate optimizes this Prime sub for both sealed and ported enclosures so you can choose the type of bass you want in your ride.

To drive this single subwoofer, we recommend a mono amplifier rated between 150 and 300 watts RMS at 4 ohms. For more information, please refer to our article on How to Match Subwoofers and Amplifiers.

Product Highlights:

  • 10" shallow-mount subwoofer with dual 2-ohm voice coils
  • mica-injected polypropylene woofer cone with poly-foam surround
  • stamped solid-steel frame
  • power range: 100-200 watts RMS (400 watts peak power)
  • frequency response: 45-250 Hz
  • sensitivity: 82 dB
  • top-mount depth: 3-7/16"
  • sealed box volume: 0.7 cubic feet
  • ported box volume: 1.4 cubic feet
  • warranty: 1 year
  • Our 60-day money-back guarantee

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.

Rockford Fosgate R2SD2-10 Reviews

Average Customer Review:

5 Reviews

Awesome subs for single cab !

Written by: Justice from Pass Christian Ms on March 6, 2015

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

Have 3 10 inch primes 2s in a Ford F150 Single cab, the box is sealed and theyre paired to a Sound ordance M.1500 (500watts) mono amp. At 2 ohms the subs are wired to 2.7 and they have amazing all around bass. Very deep and deserve more power.

Pros: Good bass.

Cons: None

Rockford Fosgate R2SD2-10

Written by: Anonymous from Marlow, OK on September 3, 2014

Crutchfield Customer Review (What's this?)

  • Not Rated
    "Coolness Factor"
  • Not Rated
    Build Quality
  • Not Rated
    Ease of Use
  • Not Rated
    Sound Quality
  • Not Rated

Sounds great if my daughter keeps the amp turned down.



Rockford Fosgate R2SD2-10

Written by: Jesse from Mims, Florida on May 16, 2013

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

Great speakers, sounds awesome in my truck. Loved how they put a bit for the screws in with it. Well worth the money.

Pros: Everything

Cons: Nothing

Good all around subs

Written by: Justin w from Wichita falls, tx on December 12, 2012

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

These subs are definitely loud for being so shallow, they have a nice deep sound. They look to have been built very sturdy, and solid

Pros: Fit where most subs will not

Cons: A little pricey.

Excellent sub for the price

Written by: Ron B from Richmond Hts, OH on October 14, 2012

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

Great price and great sound

Pros: Versitile


Hands-on research

What's in the box?

Download owner's manual

  • One shallow-mount 10" Dual 2-ohm voice coil woofer
  • Eight 1-1/8" Self-tapping screws
  • 4mm Allen bit
  • Installation and Operation manual (English/ French/ Spanish/ German)

Product Research


Shallow Mount Design: The Rockford Fosgate Prime R2 Shallow Subwoofer is designed and engineered with a much smaller motor assembly which reduces the overall depth of the woofer allowing it to fit in shallower enclosures and tighter locations of your vehicle.

Dual 2-ohm Voice Coils: This woofer features dual 2-ohm voice coils to offer wiring flexibility. When the voice coils are wired in parallel the woofer presents a 1-ohm load, when wired in series it presents a 4-ohm load.

Spring Post Assembly: The woofer features compression input terminals with attached 16-gauge stitched tinsel lead wires. The nickel plated spring posts will accept pin connectors, single banana plugs, and bare wire up to 12-gauge.

Sealed Box Volume: Rockford Fosgate recommends a sealed enclosure with an optimum internal volume of 0.7 cubic feet (from 0.5 to 0.75 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.

Vented Box Volume: Rockford Fosgate recommends a vented enclosure with an internal volume of 1.4 cubic feet using a 4" diameter x 13.7" long port tube; this yields a tuning frequency of 42 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 35 Hz).

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 verify what’s in the box, 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.

Customer Q&A

1 question already asked

I used this in a sealed box. I also am powering with an amp that is way to much wattage. The gain turned down about half. Depending on your power situation and of course style of music will depend on application. If underpowered, use ported boxes. [ David  Dec 02, 2014 ]
I built a custom box for my f-150 and only placed a single sub beacuse I did not want the bass to over power the cab. The box is 12"w 6"t 14L. I would recommend two smaller boxes instead of one long dual sub box so the air flow does not get wasted inside the box all the sound will travel from the box into the cab with two single enclosures. If you do need to make or purchase a single dual sub box make sure it has a vent tube in the center so you can get more then just one frequency of bass and all around lows. You can find plenty of diagrams online if you want to make one or you can also lok up ones made specificaly for your truck. With a single cab it might be easier to build what you want for space and location. Hope that helps and congrats on the new system. [ Joshua  Nov 30, 2014 ]