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Rockford Fosgate R2D4-12 12" 1000W 4 Ohm Subwoofers (Pair) + Dual Vented Sub Box

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

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• Peak Power: 500W
• RMS Power: 250W
• Mica Injected Polypropylene Cone
• StampCast Basket
• Anodized Aluminum Voice Coil Former
• Frequency Response: 43-250 Hz

Learn more about the r2d412_2_bbx212bl

We apologize

This item has been discontinued

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Description


Rockford Fosgate brand icon

Authorized dealer



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.

Rockford Fosgate Prime Stage 2 Subwoofer
 
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 R2D4-12

500W Peak (250W RMS) 12" Prime Series 2 Dual 4-ohm Car Subwoofer
Quantity: 2

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
  • Linear spider with embedded 16 AWG tinsel leads
  • 12 AWG compression terminals
  • StampCast basket with integrated spider venting
  • 2" High Temperature Aluminum Voice coil
  • 6.5 mm Xmax
  • 47.7 oz. Double Stacked Ferrite magnet motor structure
  • Frequency Response: 43 - 250 Hz
  • Resonance Frequency (Fs): 34.9 Hz
  • Sensitivity: 89 dB
  • Recommended sealed box volume: 0.75 cubic feet - 1.25 cubic feet
  • Recommended ported box volume: 1.79 cubic feet
  • Top-mount depth: 5.067"
  • Cutout diameter: 11.25"
  • CTA-2031 Compliant
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually

Belva BBX212BL (BLUE)

3.70 Total Cu Ft - Dual 12" 3/4" MDF Ported Subwoofer Box Enclosure with Custom Blue Baffle
Quantity: 1

Belva Subwoofer Boxes with Polyfill and 3/4-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 3/4" 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.

Belva MDF 3/4-inch Thickness

Look, nobody buys a subwoofer and says, 'Aw man, I just want a teeny bit of thump.' Naw man, you want something that kicks you in the chest, but you need a box that's gonna put up with it. That's where Belva comes in. While other brands use less-than-optimal 1/2-inch MDF, we've got 3/4-inch MDF to make sure you get all the bass you can handle. Why risk a busted box? Belva's the obvious choice when it comes to giving your sub a good home and giving you the low end you're looking for.

Belva MDF 3/4-inch Thickness

General Features:

  • 12" Dual Ported Subwoofer Enclosure
  • Blue high gloss front face board
  • Covered in black carpet
  • Durable 3/4" Medium Density Fiberboard (MDF) construction
  • Subwoofer mounting depth: 14 1/2"
  • Subwoofer cutout diameter: 11 1/4"
  • Box volume: 1.85 cubic feet (per chamber)
  • Total box volume: 3.7 cubic feet
  • Dimensions: 16"D x 35"W x 16.25"H
  • Also available in Black and Red
  • Authorized Internet Dealer
  • 30-Day Return Policy

Port Specifications:

  • Rectangular Slot Port
  • Number of ports: 2
  • Port volume: 0.18 cubic feet (per port)
  • Total port volume: 0.36 cubic feet
  • Estimated port tuned frequency (fb): 35 Hz
  • Port dimensions: 1.5"Width 12.5"Depth

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Rockford Fosgate R2D4-12 12" 1000W 4 Ohm Subwoofers (Pair) + Dual Vented Sub Box Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Rockford Fosgate R2D4-12 12" 1000W 4 Ohm Subwoofers (Pair) + Dual Vented Sub Box Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Rockford Fosgate R2D4-12 12" 1000W 4 Ohm Subwoofers (Pair) + Dual Vented Sub Box Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 Rockford Fosgate R2D4-12 12" 1000W 4 Ohm Subwoofers (Pair) + Dual Vented Sub Box Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp


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Specifications & Details


Subwoofer Specifications
Series
Prime R2 Series
Subwoofer Size
12"
Peak Power Handling
500 watts
RMS Power Handling
250 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohm
Voice Coil Diameter
2"
Frequency Response
43 - 250 Hz
Sensitivity
89 dB
Xmax (millimeters)
6.5 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Mica Injected Polypropylene - MIPP
Woofer Surround
Poly-Foam
Subwoofer Grille
No
Re-Cone Kit Available
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Optimum Sealed Box Volume
1.02 cubic feet
Optimum Ported Box Volume
1.79 cubic feet
Top-Mount Depth (Mounting Depth)
5.067"
Cutout Diameter
11.25"
Shallow Mount Installation
No
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
34.9 Hz
Equivalent Compliance (Vas)
68.8 liters
Total Speaker Q Value (Qts)
0.60
Electrical Q Value (Qes)
0.66
Electrical Resistance of Voice Coil (Re)
7.17 ohm
Mechanical Q Value (Qms)
7.33
Efficiency Bandwidth Product (EBP)
52.88
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

(2) R2D4-12,BBX212BL

Weight:

83.80lbs

Internal SKU:

r2d412_2_bbx212bl

Internal Product ID:

155951

Customer Ratings & Reviews


Rockford Fosgate R2D4-12 12

5 star
74%
4 star
19%
3 star
0%
2 star
3%
1 star
3%



Durability
4.7
Value
4.7
Features
4.5
Design
4.6
Usability
4.6

Customer Reviews

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Great box

The following review is for BBX212BL, which is a part of the bundle you are viewing.

I love this sub box. It looks & sounds amazing I am so happy I got it . If you want a box that looks and sounds really good you should get this box . U will love it as much as I love mine !!!!

By Brad on April 23, 2014

77 found this helpful


Good box!

The following review is for BBX212BL, which is a part of the bundle you are viewing.

It handles my sub woofers pretty well! I'm surprised it is holding up so greatly! Highly recommend it to anyone!

By Ermin on January 27, 2014

78 found this helpful


Great value!

The following review is for R2D4-12, which is a part of the bundle you are viewing.

Got it about 6 months ago. Put in my Ford Ranger and bass sound from this is just what I was looking for. I now can thump like the kids down the street. I would recommend this. Thumbs up!

By Mario on March 15, 2012

69 found this helpful


garbage ....

The following review is for R2D4-12, which is a part of the bundle you are viewing.

I bought a pair to go behind a 1200watt amp. They blew up in a day. I wasn't even listening to loud or music with lots of bass. They just burnt up. Thought my installer wired em wrong so I ordered another pair and had another professional wire them in... Blew them again in 2 days. Gain was low on the amp ... These are cheap for a reason.

By billy on October 22, 2013

71 found this helpful


Nice budget subwoofer

The following review is for R2D4-12, which is a part of the bundle you are viewing.

I have one these in a 2 cubic foot sealed box in my 94 civic coupe and it sounds awesome with any music. Its paired with a Rockford Fosgate Prime 250-1 and a Stinger amp kit. I've put the sub and amp through hours of abuse and never had a problem. I had two Kicker Comp 12's in there with an Alpine 500 in a ported box at 35 hz and they didn't sound near as good as this one subwoofer. This subwoofer isn't going to rattle the car next to you but you will be heard. I have people asking me what I have back there and I say its a 12 with 250 watt amp and they think I have a 15 back there. I'm like yeah you can have awesome bass without upgrading your alternator and battery. Just do your research and you might be surprised with lower end name brand audio equipment. Hope this review helps.

By Zach on May 17, 2015

61 found this helpful


Deyz little thangs bang

The following review is for R2D4-12, which is a part of the bundle you are viewing.

Aww man these bad boys hold there own had two in my girls firebird on a 1000 watt amp and let me tell you they got down right busy they embarrassed my homeboys 3 10" kickers made my love for Rockford that much stronger make sure you properly break them in though cuz they will stink up the ride when abused lol but I fully recommend for the casual bass addition not so much for the junkies like myself

By Doonie on July 20, 2014

60 found this helpful


Rockford Fosgate R2D4-12 (R2D412)

The following review is for R2D4-12, which is a part of the bundle you are viewing.

This sub is amazing. At first i was shotty of the prime series, but have i ever been proven wrong. i have 2 of these hooked up to a punch 500-2, and they slam hard. i do suggest a ported box. for the price, they are amazing

By Noah on July 23, 2011

61 found this helpful


Great box but it's to big

The following review is for BBX212BL, which is a part of the bundle you are viewing.

I would recommend this product, I like it alit except it's to big to fit in my trunk and had to put it in my back seat, so make sure you measure before you buy a box

By Nick on April 12, 2015 Checkmark Icon Verified purchase

62 found this helpful


Great Subs

The following review is for R2D4-12, which is a part of the bundle you are viewing.

Bump hard and friends are jealous. Couldn't ask for more.

By Josh on February 23, 2014

54 found this helpful


powerful subs, MUST buy

The following review is for R2D4-12, which is a part of the bundle you are viewing.

These subs hit HARD, i have 2 in the trunk of my Ford Focus sedan with a crossfire C3501 amp, and ive been running this system for about 6 months. It has won me some money, and even been in the top 10 of audio comps, these subs handle power well, and ive been pushing them hard for 6 months, and they run like a charm, the range is really good, but they hit the hardest between 30 and 75hz, If your looking for a good alternative to kicker CVR's or Apline type R's, these are your go to, and for a great price. I plan on upgrading to a 3 12's with these exact subs. I must say I love Rockford Fosgate and am a life-long buyer.

By Josh on October 8, 2012

53 found this helpful



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