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Rockford Fosgate R2D4-12

12" Dual 4 ohm Prime Stage 2 Series Car Subwoofer

5.0

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Eliminate Entry Level and Go Straight to Prime

Sonic Electronix is now carrying the brand new 2011 line of Rockford Fosgate Prime Series Car Audio Subwoofers. The R2D4-12 12" subwoofer has a peak power rating of 500 watts and a continuous RMS power rating of 250 watts. This makes this an ideal subwoofer for anyone looking to add some bass to their car audio system. Equipped with anodized aluminum voice coil formers for extreme heat dissipation, will allow this sub to perform at optimum level during long hard hitting sessions. Perfect for sealed or ported enclosures the R2D4-12 is the way to go in 2011 when looking for Prime performance with an affordable price tag.

 
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.

 
  • 12" Dual 4 ohm Prime Stage 2 Series Subwoofer
  • Power Handling:
    • Peak: 500 watts
    • RMS: 250 watts
  • Impedance: 4 ohm
  • Mica injected polypropylene cone
  • Black raised surround
  • Linear spider with 16 AWG woven tinsel leads
  • StampCast basket with integrated spider venting
  • CEA-2031 Compliant accurate power handling rating
  • Designed for use with sealed and vented enclosures
  • High temperature voice coil
  • Integrated PVC trim ring
  • Anodized aluminum voice coil former
  • Frequency response: 43-250 Hz
  • Sensitivity: 89 dB
  • 1-year SonicElectronix.com warranty
Subwoofer Specifications
Subwoofer SeriesPrime R2
Subwoofer Size12"
Peak Power Handling500 watts
RMS Power Handling250 watts
Voice Coil(s)Dual
Impedance (Per Voice Coil)4 ohms
Voice Coil Diameter2"
Frequency Response43 - 250 Hz
Sensitivity89 dB
Xmax (millimeters)6.5 mm
Subwoofer DesignRound / Circle
Main Cone ColorBlack
Woofer CompositionMica Injected Polypropylene (MIPP)
Woofer SurroundN/A
Magnet StructureN/A
Subwoofer GrilleNo
Re-Cone Kit AvailableNo
Recommended Enclosure Specifications
Recommended Enclosure TypePorted / Vented
Sealed
Minimum Sealed Box Volume0.75 cubic feet
Maximum Sealed Box Volume1.25 cubic feet
Minimum Ported Box Volume1.79 cubic feet
Maximum Ported Box Volume1.79 cubic feet
Top-Mount Depth5-1/8"
Cutout Diameter11-1/4"
Shallow Mount InstallationNo
Electromechanical Parameters
Free-Air Resonance (FS)34.9 Hz
Electrical Resistance of Voice Coil (Re)7.17 ohms
Electrical Q Value (Qes)0.66
Mechanical Q Value (Qms)7.33
Total Speaker Q Value (Qts)0.60
Equivalent Compliance (Vas)68.8 liters
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration1 year
Labor Warranty Duration1 year
Warranty ProviderSonic Electronix
Customer Review Summary for Rockford Fosgate R2D4-12
Average Customer Rating is 5.0 out of 5 stars:
5.0
based on 2 Reviews
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Rating Distribution:
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4 star:
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3 star:
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1 star:
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what's this?
Average Attributes Rating:
Durability
5.0
Value
5.0
Features
5.0
Design
5.0
Usability
5.0
what's this?
Most Helpful Customer Reviews:
July 23, 2011 Rockford Fosgate R2D4-12 (R2D412)
2 of 2 people found the following review helpful:
Review by
Noah from ashkum, Ill
Overall
Durability
Value
Features
Design
Usability
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
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March 15, 2012 Great value!
Review by
Mario from Las Cruces, NM
Overall
Durability
Value
Features
Design
Usability
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!
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Subwoofer Grilles
Protect your subwoofer while making your enclosure look great! These subwoofer grilles are the perfect addition to your new subwoofer.
 ProductPriceAdd?
12" Universal Subwoofer Grille12" Universal Subwoofer Grille
Protect your subwoofer with this aluminum grille that is simple to install.
$9.99
Speaker Wire
Choose from our recommended speaker wire to hook up your amplifier to your new subwoofer. The higher quality of speaker wire that it used for this connection, the better your subwoofer will sound.
 ProductPriceAdd?
15 ft. of 12 AWG StreetWires Speaker Wire15 ft. of 12 AWG StreetWires Speaker Wire
This SuperCable from StreetWires is a noise free link between your amplifier and your subwoofer.
$19.99
20 ft. of 12 AWG Kicker Speaker Wire20 ft. of 12 AWG Kicker Speaker Wire
Kicker uses twisted pair technology and hyper-flex cable to provide you with the cleanest sound and a simple installation.
$24.49
Sound Dampening Material
Get the most sound out of your new subwoofer with some high quality sound dampening material. It will keep the road noise out and the music inside the car.
 ProductPriceAdd?
Dynamat Rubber RollerDynamat Rubber Roller
Install your Dynamat with ease! This heavy duty rubber roller is designed specifically to install your Dynamat!
$18.99
Dynamat Xtreme Trunk KitDynamat Xtreme Trunk Kit
Get better sounding bass from your new subwoofer with enough Dynamat Extreme for your entire trunk.
$94.99
Enclosure Accessories
These accessories are designed to help you build the custom enclosure that you have always wanted, or add to the box that you already bought. Either way, these products can assist you in achieving better sound, better looks, and more bass!
 ProductPriceAdd?
20 oz. Bag of Poly-Fil20 oz. Bag of Poly-Fil
Polyester fiber fiberfill adds better bass to your system.
$5.99
16 oz. Can of Adhesive Spray16 oz. Can of Adhesive Spray
Spray adhesive used for adhering carpet to subwoofer boxes without bubbles.
$5.99
Spring Post Terminal CupSpring Post Terminal Cup
Makes adding a spring post terminal to an enclosure simple! Banana clip ready!
$2.99
Binding Post Terminal CupBinding Post Terminal Cup
Use this to easily install a binding post terminal to your subwoofer enclosure.
$2.99
Banana Clip TerminalsBanana Clip Terminals
These high grade banana clips allow you to plug into your banana clip ready terminal for a secure connection.
$4.99
System Optimization and Tuning
Use these items to assist in testing and tuning your new car audio system to perfection!
 ProductPriceAdd?
AutoSound 2000 CD-101AutoSound 2000 CD-101
Low frequency test CD
$12.99
AutoSound 2000 CD-102AutoSound 2000 CD-102
High frequency test CD specifically designed for the set-up and evaluation of sound system imaging and placement.
$12.99
AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.
$12.99
Main Product
 ProductPriceAdd?
Rockford Fosgate R2D4-12Rockford Fosgate R2D4-12$69.95
Related products
1000W Rockford Fosgate + Crossfire Complete Bass Bundle
Pair of 12" Dual 4 ohm Prime Stage 2 Series Subwoofers • 1000W MAX • 500W RMS • C3 Series Monoblock Class D Car Amplifier • MOSFET Power Supply • Variable Bass Boost • Variable Low-Pass Filter • Complete 4 Gauge Amp Kit • 12" Dual Sealed Subwoofer Enclosure
1000W Rockford Fosgate R2D4-12 + Enclosure Bass Package
12" Dual 4 ohm Prime Stage 2 Series Subwoofer • 500W RMS • Mica Injected Polypropylene Cone • Black Raised Surround • 12" Dual Sealed Subwoofer Enclosure • Internal Box Volume: 1.13 cubic ft. Per Chamber
500W Rockford Fosgate R2D4-12 + Enclosure Bass Package
12" Dual 4 ohm Prime Stage 2 Series Subwoofer • 250W RMS • Mica Injected Polypropylene Cone • Black Raised Surround • 12" Single Sealed Subwoofer Enclosure • Internal Box Volume: 1.0 cubic ft.

For more information on wiring subwoofers, visit our Subwoofer Wiring Guide: Subwoofer Wiring Guide

Product Summary

Manufacturer: Rockford Fosgate
Model number: R2D4-12
UPC: 780687332563
Weight: 9.88 lbs
Internal SKU: r2d412
Internal product ID: 33744

Price Information

$79.95

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$69.95

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