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Rockford Fosgate Prime R2SD4-12 + Belva Sealed Enclosure

500W Max (250W RMS) 12" Prime Stage 2 Shallow Mount Dual 4 ohm Subwoofer

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• 500W Peak
• 250W RMS
• Mica Injected Polypropylene Cone
• StampCast Basket
• Anodized Aluminum Voice Coil Former
• Frequency Response: 45-250 Hz

Learn more about the r2sd412_1truck12

We apologize

This item has been discontinued


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Description


Rockford Fosgate brand icon

Authorized dealer

Rockford Fosgate Prime Stage 2 Subwoofer

Eliminate Entry Level and Go Straight to Prime

Prime subwoofers are ready to rock and are the perfect first step into performance audio.The Prime R2 12" subwoofers have a peak power rating of 500 watts and a continuous RMS power rating of 250 watts. This makes them an ideal subwoofer for anyone looking to add some modest low end to their car audio system. The Prime R2 drivers feature an anodized aluminum voice coil formers for extreme heat dissipation that allow the driver to perform at optimum level during long hard hitting sessions. These subwoofers are the way to go when looking for a woofer that is built with quality & performance in mind and has been designed by industry's leading car audio manufacture.

These woofers, like their Punch brethren, are built using many of the same speaker technologies that Rockford has been famous for over 30 years for and you won't break the bank buying one. Simply put, the Prime seriesof woofers are held to the same standards of quality and performance as any other Rockford woofer but delivered at an affordable price.

 
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.




Rockford Fosgate Prime R2 R2SD4-12

500W Peak (250W RMS) 12" Prime Series Dual 4-ohm Shallow Car Subwoofer
Quantity: 1

Product Details:

  • 12" Dual 4 ohm Prime Series Subwoofer
  • Power Handling:
    • Peak: 500 watts
    • RMS: 250 watts
  • Mica Injected Polypropylene - MIPP Cone
  • Poly-Foam Surround
  • 12 AWG compression terminals
  • Optimized for sealed enclosures
  • Shallow Motor Assembly
  • Integrated PVC trim ring
  • StampCast basket with integrated spider venting
  • 2" High Temperature Aluminum Voice coil
  • 10 mm Xmax
  • 51 oz. Double Stacked magnet motor structure
  • Frequency Response: 43 - 250 Hz
  • Resonance Frequency (Fs): 30.3 Hz
  • Sensitivity: 85 dB
  • Recommended sealed box volume: 0.90 cubic feet
  • Recommended ported box volume: 1.79 cubic feet
  • Top-mount depth: 3.602"
  • Cutout diameter: 11.25"
  • CTA-2031 Compliant
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually

Single 12" Subwoofer Angled Truck or Hatchback Box Enclosure

1TRUCK12 - CARB Compliant, 5/8" MDF Shallow Sub Enclosure Lined with Polyfil
Quantity: 1

Belva Subwoofer Boxes with Polyfill and 5/8-inch MDF

Built for Bass

You've got an awesome subwoofer there, pal. But where's it gonna go? You can't just throw that thing in the trunk and call it a day. Don't worry, Belva's got your back. With superior construction, great features and everything you need for bass, you'll be ready to pass up that entry-level box you've been eyeballing.

Belva Subwoofer Boxes are CARB Phase 2 Compliant

You get quality boxes with solid 5/8" MDF because nothing else will do the job right. You want to flex your windshield, not your box's innards. You get polyfill built into the box, making sure your subs perform perfectly. On top of that, you get a box that's CARB Phase 2 Compliant, meaning your box won't emit as much nasty formaldehyde as the competition. Better for your bass and better for you.


This angled 12" box is PERFECT for single cab trucks and hatchback vehicles looking to save some space. The box is fully carpeted and made with 5/8" MDF wood (Medium Density Fiberboard), not particle board.

  • High Quality 5/8" MDF Construction
  • Gold Binding Post Terminals
  • 0.75 CuFt
  • Color: Black
  • Dimensions: 18-1/4" W x 14-1/4" H x 8-1/2" BD x 5-1/2" TD
  • 30 Day return policy

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Specifications & Details


Subwoofer Specifications
Series
Prime R2 Series
Subwoofer Size
12"
RMS Power Handling
250 watts
Peak Power Handling
500 watts
Woofer Composition
Mica Injected Polypropylene - MIPP
Woofer Surround
Poly-Foam
Sensitivity
85 dB
Frequency Response
43 - 250 Hz
Subwoofer Design
Round / Circle
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

1TRUCK12,R2SD4-12

Weight:

27.00lbs

Internal SKU:

r2sd412_1truck12

Internal Product ID:

177483

Customer Ratings & Reviews


Rockford Fosgate Prime R2SD4-12 + Belva Sealed Enclosure thumbnail image

5 star
84%
4 star
16%
3 star
0%
2 star
0%
1 star
0%



Durability
4.9
Value
4.9
Features
4.7
Design
4.8
Usability
4.9

Customer Reviews

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Mounting Depth is NEEDED

The following review is for 1TRUCK12, which is a part of the bundle you are viewing.

One thing that NEEDS to be in the description is the MOUNTING DEPTH of the box. This is CRUCIAL for determining which speakers will actually fit in the box. Once I received the box, I estimated the mounting depth to be somewhere like 5.5" for the sub. So this does limit certain models of subwoofers, but the one I chose fit perfect. I also enjoyed that this box came with poly-fill. Sounds great with my Alpine SWE-12.

By RocketyMan on February 22, 2014

124 found this helpful


Single 12" Subwoofer Angled Truck or Hatchback Box Enclosure

The following review is for 1TRUCK12, which is a part of the bundle you are viewing.

it is as discribed , well built and speaker fit well. it was a good price and had no defects.

By Clint on September 2, 2014

116 found this helpful


belva 12" subwoofer enclosure

The following review is for 1TRUCK12, which is a part of the bundle you are viewing.

excellent subwoofer enclosure for my 12" sub. The quality of the materials and the solid feel of the box exceeded my expectations

By jaz on December 19, 2014

109 found this helpful


Awesome Enclosure

The following review is for 1TRUCK12, which is a part of the bundle you are viewing.

Didn't expect a insulated enclosure...Everything fit prefect and the quality was far more than i thought i was gonna get. Gotta get another one when i add a new deck to my van.....Great speed in shipping too.

By DaMan on August 26, 2014

112 found this helpful


Excellent Product!

The following review is for 1TRUCK12, which is a part of the bundle you are viewing.

This box is very well built, great size, and is completely air tight. I've never had a box that was cotton lined and let me tell you it makes a difference. Great product I would highly recomend!

By Colbey on February 9, 2014

111 found this helpful


A Super super happy man!!!

The following review is for 1TRUCK12, which is a part of the bundle you are viewing.

I bought this Single 12" Subwoofer Angled Truck or Hatchback Box Enclosure a few days ago. So I cant explain how much happy I'm listening my music with this box, I'm an immigrant from Colombia who like to listen music such as Salsa, Reggueton, Merengue a real Latin guy. The sound is something so crazy (Perfect Sound - Space) in my car, Now I'm able to move all the toys of my son in my 2010 Toyota Matrix. If you want to have a good space & sound this is the box for you. Don't be scary for the size of this box. ;) I'm a happy Colombian.

By Harol Gomez on September 22, 2014

111 found this helpful


Nice Box

The following review is for 1TRUCK12, which is a part of the bundle you are viewing.

I purchased this box to put a Hifonics HFX12D4 in. The box is well made and falls within specs for the sub. The carpeting, cutout, poly fill and terminals are high quality. I added about 5 oz of polyfill to make the sub think the box is bigger. The box also has a small footprint and fits easily in the trunk of my Yukon. This combo is matches up well and is highly recommended. Plus, the pairing offers a great value if you want strong bass on a budget. Sonic did a great job with the shipping :)

By Ryan on February 10, 2014

110 found this helpful


speakers box review

The following review is for 1TRUCK12, which is a part of the bundle you are viewing.

Great box. Good waight,shape and easy to install a speaker to. Looks great in black. Recommended for any impact car or truck. Sturdy box no vibration.

By thumper on November 17, 2014

103 found this helpful


Good Product for the Price

The following review is for 1TRUCK12, which is a part of the bundle you are viewing.

Good construction but it really flexes from my Rockford P3 shallows so I had to reinforce it with resin and fiberglass

By john on March 11, 2015

94 found this helpful


Works great.

The following review is for 1TRUCK12, which is a part of the bundle you are viewing.

I bought this speaker box for a mustang but I ended up with it in my extended cab f150. I raised the rear seat up 2 inches and put in a alpine sub. This box hits hard and it is sturdy. It also looks nice in my truck.

By Nard on April 20, 2015

82 found this helpful




No picture

NVX NSW122 (Open Box, Good)

350W 12" N-Series Dual 2 ohm Car Subwoofer

$51.96

List price $99.99

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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.