Rockford Fosgate R2D2-12

Prime R2 Series 12" subwoofer with dual 2-ohm voice coils

Item #: 575R2D212

In Stock

7 Reviews

Your price: $79.99 Earn up to 80 Rewards points

Add to Cart

+ Add to wishlist + Email me alerts for this product

Scratch & Dent: $67.99

View all associated offers

Rockford Fosgate's Prime R2 subs deliver strong bass in your car, and they are definitely built to last. The R2D2-12 sub features a 12" mica-injected polypropylene cone that works with a high-density poly-foam surround to punch out fat, deep notes. Rockford Fosgate stitches the tinsel leads that carry the signal to the voice coils directly into the cone — they'll hang tough through heavy use so you get consistent, reliable performance. The stamped solid-steel frame offers venting usually found in high-end subs that keeps 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 200 and 375 watts RMS at 4 ohms. For more information, please refer to our article on How to Match Subwoofers and Amplifiers.

Product Highlights:

  • 12" subwoofer with dual 2-ohm voice coils
  • mica-injected polypropylene woofer cone with poly-foam surround
  • stamped solid-steel frame
  • power range: 50-250 watts RMS (500 watts peak power)
  • frequency response: 43-250
  • sensitivity: 89 dB
  • top-mount depth: 5-1/8"
  • sealed box volume: 1.02 cubic feet
  • ported box volume: 1.79 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 R2D2-12 Reviews

Average Customer Review:

7 reviews
Review this product
Great Gear Giveaway

Submit a review and then enter to win a $350 rewards card


Review this product:

Thanks for taking the time to share your experiences about this product. Please be sure to focus your comments on the product itself. Read our Review Guidelines for more information.

Your email won't be visible. Please use the email address that is associated with your order.
(e.g., JohnD) Your review will be signed using the display name and location
(e.g., Charlottesville, VA)

Click on a star to rate the overall product on a scale of 1-5
Rate the following specific attributes
 Sound Quality
 Ease of Use
 "Coolness Factor"
 Build Quality
1500 characters left
  Attach a YouTube Review
Crutchfield Video Review Guidelines
  • Only submit videos that you made or are authorized to use.
  • Do not submit videos that contain music, video or visuals that are copyrighted and belong to someone else.
  • Please see our Review Guidelines for more information.
500 characters left
500 characters left

rockford fosgate subwoofers

Written By bob w., Massachusetts on Monday, May 04, 2015

Crutchfield Customer Review (What's this?)

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

awesome head banging sound quality

Pros: deep bass, value, easy to install

Cons: none that come to mind

Amazing subs for the price

Written By TheGreatOne406, milescity, montana on Thursday, December 25, 2014

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

These are awesome. I've never gotten rocksford fosgate before( mostly cause there too expensive)but these are amazing. I've known about the company and how well there subs are made. I've really wanted some and now I have them, and there awesome. Even for 250 watts. They still thump good. And the sound quality ias amazing.

Pros: Very easy too install. Good sound quality and loundness factor.

Cons: So far nothing, And I've had them for almost 3 months. Still work like new. I really doubt there will be any problems for a long while.

R2-D2 12's POUND!

Written By Anonymous, San tan valley. arizona on Thursday, September 11, 2014

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

I just put two of these 12's in a dual chamber sealed bbox on a prime r750-1d and they shake my whole car but retain clarity which I love!

Pros: Price. Size. Rms load

Cons: Logo came off the surround. So I just stuck it to my dash lol

Just Plain Awesome

Written By CCH, KY on Monday, July 28, 2014

Crutchfield Customer Review (What's this?)

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

Just plain awesome, what more could I say? Have two R2D2-12's wired at a 2 ohm load being pushed by a Rockford Fosgate 500 X1D, inside a 2005 f-150 standard cab with a sealed box, I made with a final box volume at 1.06 per speaker and they thump. Could not ask for anything more. Sound Quality awesome, Price awesome, Crutchfield lifetime tech support pricless!!!!!

Pros: Sound Quality, Price

Cons: None

Rockford Fosgate R2D2-12

Written By Raymond L, Muskogee,Oklahoma on Sunday, June 02, 2013

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

Awesome speaker!!! Wish you could wire 2 of them to 2 ohms.

Pros: Great sound

Cons: Wish you could wire a pair of them to run at 2 ohms.


Written By tj, rifle,co on Sunday, May 19, 2013

Crutchfield Customer Review (What's this?)

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

it sounds really great and looks cool in my jeep

Cons: none


Written By deckett23, marysville ca on Wednesday, November 16, 2011

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


Pros: i had two of these hooked up to a horrible amp and they still sounded great! best and loudest subs i have ever had. they have great lows mediums and highs. they are the perfect all around subs.

Cons: i loved everything!!!!!!

Hands-on research

What's in the box?

Download owner's manual

  • 12" Dual 2-ohm voice coil subwoofer
  • Eight 1-1/8" Allen head screws
  • 4mm Allen head bit
  • Installation/Operation manual (English/ French/ Spanish/ German)

Features and Specs

Size 12 -inch
Impedance 4 ohms
Cone Material Mica injected poly
Surround Material Poly-foam
Ideal Sealed Box Volume (cubic feet) 1.02
Ideal Ported Box Volume (cubic feet) 1.79
Port diameter (inches) 4
Port length (inches) 9.3
Free-Air No
Dual Voice Coil Yes
Sensitivity 89 dB at 1 watt
Frequency Response 43 - 250 Hz
RMS Power Range (Watts) 50-250
Peak Power Handling (Watts) 500
Top Mount Depth (inches) 5 1/4
Bottom Mount Depth (inches) N/A
Cutout Diameter or Length (inches) 11 1/8
Vas (liters) 66.4
Fs (Hz) 35
Qts 0.6
Xmax (millimeters) 6.5
Parts Warranty 1 Year
Labor Warranty 1 Year

Product Research

Enclosure Compatibility


Overview: The Rockford Fosgate Prime R2D2-12 is a 12-inch subwoofer with dual 2Ω voice coils. The sub features a StampCast steel frame, quick-release compression terminals, and a mica injected polypropylene cone. An anodized aluminum voice coil former and spider venting help keep the subwoofer cool.

Steel Basket: The R2D2-12 subwoofer features a StampCast steel basket for added rigidity.

Compression Terminals: The Prime R2D2-12 features spring post terminals which accommodate speaker wire up to 12 gauge.

CEA-2031 Compliant: Power handling on the Rockford Fosgate Prime R2D2-12 subwoofer conforms to CEA-2031 industry standards. This means the subwoofer has the capacity to handle power under continuous demand, not instantaneous power handling, that over time, can damage voice coils.

Enclosure Compatibility

Sealed Box: Rockford recommends a sealed enclosure with an optimum internal volume of 1.02 cubic feet (from 0.75 to 1.25 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 1.79 cubic feet using one 4" diameter x 9.3" long port; this yields a tuning frequency of 45 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 40Hz).

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.