Rockford Fosgate Prime R2S-1X12

500W Peak, Prime Series Single 12" R2SD4 Subwoofer Loaded Enclosure

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• Peak Power: 500 watts
• RMS Power: 250 watts
• Final Impedance: 2 ohms
• Solid 5/8" MDF Construction
• Complete with high-density black box carpeting

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Product Highlights

• Peak Power: 500 watts
• RMS Power: 250 watts
• Final Impedance: 2 ohms
• Solid 5/8" MDF Construction
• Complete with high-density black box carpeting


Rockford Fosgate

Authorized dealer

Anodized Aluminum Voice Coil Former

Anodized Aluminum Voice Coil Former

By using an anodized aluminum voice coil former on their subwoofers, Rockford Fosgate is able to dissipate heat from the voice coil more efficiently. A hot voice coil can melt the adhesive bonds, which will lead to eventual subwoofer failure. The aluminum voice coil former acts as a heat-sink to dissipate thermal build-up on the voice coil cool during high SPL conditions.

CEA-2031 Rockford Fosgate Subwoofers

Conforms to CEA-2031

Rockford Fosgate has built this subwoofer to conform to the CEA-2031 loudspeaker power handling industry standards. This means that you can trust the subwoofer to have the capacity to safely handle the continuous (RMS) power rating. Having a CEA-2031 power handling is important when matching a subwoofer to an amplifier because the power ratings are accurate.

Rockford Fosgate Stitched Tinsel Leads

Stitched Tinsel Leads

To improve the reliability and performance by reducing fatigue and possible shorting, Rockford Fosgate has stitched the tinsel leads to the spider. The multipoint periodic stitching lead wires reduce the mass of the tinsel leads to spread the stress over a greater area. This improves the reliability and performance of the subwoofer.


Product Details:

  • 12" Shallow Mount Prime Stage 2 Series Subwoofer
  • Power Handling:
    • Peak: 500 watts
    • RMS: 250 watts
  • Recommended power range: 100 - 250 watts RMS
  • Nominal Impedance: 2-ohms
  • CEA-2031 Compliant
  • Klippel Verified
  • Shallow Motor Assembly
  • Mica injected polypropylene cone
  • StampCast basket with integrated spider venting
  • Unique low profile "inset" design, high excursion woofer
  • High density compressed half-roll sealed poly-foam surround
  • Proprietary attached tear & fatigue resistant poly-cotton spider
  • Suited for sealed enclosure applications, capable for use in vented boxes as well
  • Optimized motor magnetics with extended pole and bumped vented backplate
  • Fatigue resistant and reduced strain "stitched on" flexible lead wire design
  • Multi-point high-temp/high-strength neck joint bonding technique
  • High temp copper voice coil with aluminum former
  • All metal compression input terminal assembly
  • Semi-flexible PVC integrated trim ring
  • Heavy guage stamped steel frame
  • Magnet Weight: 51.0 oz
  • Frequency Response: 43 - 250 Hz
  • Xmax: 10 mm
  • Sensitivity: 85 dB @ 1 watt / 1 meter
  • Single 12" Loaded Sealed Box
  • Solid MDF Construction
  • Spring post terminals
  • Complete with high-density black box carpeting
  • Dimensions: 5-1/4"BD x 3-3/8"TD x 27-1/4"W x 13-1/2"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Check out the Rockford Fosgate R2S-1X12 Owner's Manual

Specifications & Details

Subwoofer Specifications
Prime R2 Series
Subwoofer Size
Final Wired Impedance
RMS Power Handling
250 watts
Total RMS Power Handling
250 watts
Peak Power Handling
500 watts
Total Peak Power Handling
500 watts
Woofer Composition
Mica Injected Polypropylene - MIPP
Woofer Surround
85 dB
Frequency Response
43 - 250 Hz
Xmax (millimeters)
10 mm
Subwoofer Design
Round / Circle
Enclosure Specifications
Box Type
Number of Subs/Speakers
Box Style/Shape
Hatchback Style, Angled Back
Second Depth
Wood Thickness
Number of Terminals
Terminal Type
Spring clips
Box Exterior Color
Box Finish
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Item Details


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great woofer

I really like this woofer . I put in back of my 1994 ford f150 behind the seat . Fit great sound great will buy another one for my F150

By Ronnie on May 12, 2013


found this helpful.

More than enough bass!

Dropped this under the seat in my F150 pushed by an old school Punch 75 and boom, clean manageable bass. Doesn't hit as low as my dual 10's but is real clean. Great value and fits nicely.

By Dave on September 20, 2013


found this helpful.

Great sound !!

Put it in my 89 1500 and I love it and would recommend it to anyone who is interested in the woofer

By Anonymous on May 22, 2019


found this helpful.

Very good slim fit unit

I put this unit behind my 2018 tundra it was a tight fit but I got it in there after having to unbolt the 2nd row seat. For a shallow box this thing does the job If you have tight space I highly recommend this sub. I wish I could of got 2 of these subs behind the seat but 1 would only fit.

By Jake on July 21, 2019 checkmarkIcon Verified purchase


found this helpful.

It fit perect behind the seat of my ranger

I needed something to fit behind the seat in my single cab ford ranger. This was perfect and i got to keep my leg room in an already small cab. Unfortunately i had to give up the low bass though. previously i had a kicker comp in a ported truck box, and a 500 watt jl audio amp(still using the same amp) and i was pushing much more bass with a good range from highs to lows but the box was 2-3 times the depth as this box and made it uncomfortable to sit in the truck with the seat that far forward. This sub and box being a slim mount in a tight sealed box muffles and suds bad on the lows. The meds are ok and the highs are about to same as the kicker comp. Nothing too impressive though. Some songs can get my mirrors shaking a little but mostly this box functions as a easy to place subwoofer to add a lttle bass to my music. Iv had two 15 kicker cvr's and later a single12 jl audio w7 before when i had my crown vic so i know the difference between haveing bass that is making your rear view mirror fall in your lap and having something to fit in a limited amount of space to make whats on the radio sound a little better. Im pleased with this sub and box because i knew what to expect when i ordered it and it fit the bill nicely for what i paid for it. ...and..the smell. Lol for the first month of having it id get in my truck to the smell of a new sub box. If youv ever smelled it before you know what im talking about.

By Jaco on April 7, 2016


found this helpful.

IT fits behind the rear seat of a Chevy c30 crew cab

Because of space limitations and availability of premade shallow subwoofer cabinets that would fit the limited space I had , this was a perfect fit! Additional bass is great from this speaker- Don't expect you'll crack house foundations with it but if you want improved bass response in a compact package - ESPECIALLY in a Chevy/GMC squarebody this is your kit- IM running a Memphis 300watt@ 4 ohm amp to power it .

By Anonymous on November 30, 2019 checkmarkIcon Verified purchase


found this helpful.

Best bang for regular cab

Very impressed with the pair of these behind the seat. They run in series off a Rockford Fosgate 500 watt mono amp and I have been quite happy with them. I don't know how you could possibly do better for the money.

By Lew on September 17, 2017


found this helpful.

sound good

what can say it rockfordfosgate,sound good,clean bass,it sealed cab which i like ,not as loud ported,hook this up to a belva bb200vs2,which i got for sonic.would buy again

By tim on April 13, 2018 checkmarkIcon Verified purchase


found this helpful.


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