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Rockford Fosgate R2SD4-10

Prime R2 Series 10" shallow subwoofer with dual 4-ohm voice coils

Item # 575R2SD410

Rockford Fosgate's Prime R2 shallow-mount subs deliver satisfying bass even in smaller cars where space is tight.

Rockford Fosgate's Prime R2 shallow-mount subs deliver satisfying bass even in smaller cars where space is tight.

Need help?
Contact our Virginia-based experts.

Item # 575R2SD410

Ships free

Temporarily out of stock Why?

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$139.99 -$10.00 Price break

$129.99 each

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Need help?
Contact our Virginia-based experts.

About the Rockford Fosgate R2SD4-10

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.

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 R2SD4-10 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 4-ohm voice coils allow you to wire this sub for 2- or 8-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.


Product highlights:

  • 10" shallow-mount subwoofer with dual 4-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
  • MFR # R2SD4-10

What's in the box:

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

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Rockford Fosgate R2SD4-10 reviews

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More details on the Rockford Fosgate R2SD4-10

Pat M.

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 4-ohm Voice Coils: This woofer features dual 4-ohm voice coils to offer wiring flexibility. When the voice coils are wired in parallel the woofer presents a 2-ohm load, when wired in series it presents an 8-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).

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Customer Q&A

9 questions already asked

Is there a grill cover for this sub?
[ Justin  Aug 28, 2021 ]
1 answer
Mine did not come with a grill
[ AUSTIN  Aug 28, 2021 ]
What is diameter of magnet?
[ Brian  Oct 15, 2020 ]
1 answer
the diameter of the magnet is 5.463".
[ Calvin  Oct 29, 2020 ]  Staff
For a Mitsubishi Evo X OEM sub, can this be a one for one swap?
[ Victor  Sep 28, 2020 ]
1 answer
Hi Victor. Please chat with us online or by phone at 1-800-324-9695, we will need to obtain further information on your vehicle, prior to confirming fitment.
[ Jess  Oct 15, 2020 ]  Staff
How do these get wired using a 2 channel amp to end up at 2ohm at the amp?
[ Bret  Nov 30, 2019 ]
1 answer
Bret, the majority of 2 channel amps are not 2-ohm stable once bridged. You could lower a single one of these subwoofers to 2-ohms by wiring the voice coils in parallel. You would want to ensure that the amplifer you were using was 2-ohm stable. One of our friendly advisors would love to help you.
[ Calvin  Dec 23, 2019 ]  Staff
I have aftermarket door speakers and stereo. Which amp would you prefer to run that with two of these speakers?
[ Bobby  Mar 08, 2016 ]
5 answers
I bought a Rockford Fosgate Prime R600X5 600W RMS 5-Channel Car Amplifier to power my system using these same 10" subs. It sounds great!
[ Mitch  Mar 10, 2016 ]
I bought two of these and put in an under the backseat box of a ram. I also had aftermarket speakers. I used a 14 year old 600 watt kenwood amp and they worked just fine for me. I listen to different kinds of music and they all sound good with this setup
[ Paul  Mar 09, 2016 ]
If you're happy with the performance of the door speakers off of the deck leave them there. And get a 500 W class D Rockford amp for the two Subs.
[ CURTIS  Mar 09, 2016 ]
I always prefer Rockford Fosgate amplifiers for a Woffer I would suggest a mono amp with two channels and A & B I use a Rockford Fosgate 300 mono a&b channel bridged to drive 1 -10 I hope that helps you
[ PAMELA S  Mar 09, 2016 ]
Personally have a 4 channel amp for my all of my door speakers (infinity kappa five amp, and infinity kappa speakers), then I got a 400w rms at 4ohm kenwood amplifier, that was faftory referbished from crutchfield and I'm very happy with it. I would get the 2 ohm verion of the subwoofer if you're going yo power 2 subs because you can get a 400w 2ohm amp cheaper than a 400w 4ohm amp. Hope it helps!
[ Andrew  Mar 08, 2016 ]
can this be used in a c6 corvette front door?
[ terry  Dec 06, 2013 ]
3 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.
[ Krissy  Nov 03, 2014 ]  Staff
What amp Is best if I wanted to run two of these subs under my back seats in an extended cab GMC Sierra?
[ Tyler  Nov 03, 2014 ]
This would need to be a custom install, so we don't have exact fit information. However, if you would like to contact and Advisor by phone or chat they may be able to pull up your vehicle and determine the mounting depth available.
[ Jeff  Dec 06, 2013 ]  Staff

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