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Rockford Fosgate R2D2-12

250W 12" Prime Stage 2 Dual 2 ohm Subwoofer

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List price $99.99

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$53.00

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Eliminate Entry Level and Go Straight to Prime

Sonic Electronix is now carrying the brand new line of Rockford Fosgate Prime Series Car Audio Subwoofers. The R2D2-12 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 R2D2-12 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.

 

General Features

  • 12" Dual 2 ohm Prime Stage 2 Series Subwoofer
  • Power Handling:
    • Peak: 500 watts
    • RMS: 250 watts
  • Impedance: 2 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 Series
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
Prime R2 (Rockford Fosgate)
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
12"
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
500 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
250 watts
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
Dual
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
2 ohms
Voice Coil Diameter
Diameter of voice coil, usually measured in inches.
2"
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
43 - 250 Hz
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
89 dB
Xmax (millimeters)
Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.
6.5 mm
Subwoofer Design
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Round / Circle
Main Cone Color
This is the color of the speaker's or subwoofer's cone.
Black
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Mica Injected Polypropylene (MIPP)
Magnet Structure
Defines the overall structure of the subwoofers magnet.
Single Stacked
Subwoofer Grille
Most subwoofers are able to accommodate a universal grille; however, some subs include a grille and others have a specific, optional grille available for purchase separately. If "yes", then the subwoofer includes a grille. If "optional (sold separately)" the matching grille will need to be purchased in addition to the sub.
No
Re-Cone Kit Available
Some higher end subwoofers have replaceable cone assemblies. In case of a blown woofer, a recone kit allows for a simple replacement, as opposed to purchasing an entire new subwoofer.
No

Recommended Enclosure Specifications

Recommended Enclosure Type
This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Ported / Vented
Sealed
Minimum Sealed Box Volume
This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
0.75 cubic feet
Optimum Sealed Box Volume
This value indicates the ideal sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Maximum Sealed Box Volume
This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
1.25 cubic feet
Minimum Ported Box Volume
This value indicates the minimum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
1.79 cubic feet
Optimum Ported Box Volume
This value indicates the ideal ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Maximum Ported Box Volume
This value indicates the maximum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
1.79 cubic feet
Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
5-1/8"
Cutout Diameter
The actual diameter of the hole you will need to cut out if you are creating a new mounting location for this speaker, or if you are mounting a subwoofer in a box.
11-1/4"
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

No

Electromechanical Parameters

Free-Air Resonance (Fs)
The free-air resonance frequency of the subwoofer, measured in Hz. At this frequency the weight of the moving parts is perfectly balanced with the subwoofers suspension system.
34.6 Hz
Equivalent Compliance (Vas)
This is the amount of air that has the same stiffness as the subwoofers suspension. The greater the rating, the lower the stiffness and larger recommended enclosure. It is measured in Liters.
66.4 liters
Total Speaker Q Value (Qts)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including all dimensionless losses. Essentially, a high Qts value (closer to 1.0) means the subwoofer is great for sealed enclosures and a low Qts value (closer to 0) means the woofer is great in vented enclosures. A Qts of around 0.45 means the woofer will work decently in either enclosure type.
0.58
Electrical Q Value (Qes)
The subwoofers relative damping (Q) at the resonance frequency (Fs), including electrical losses. Also called the mechanical damping of the subwoofer. The unitless measurement usually varies from 0.5 10.
0.62
Electrical Resistance of Voice Coil (Re)
Amount of DC resistance of the subwoofer when measured with an ohm meter. Typically, this will read less than the impedance rating of the subwoofer.
3.80 ohms
Mechanical Q Value (Qms)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including mechanical losses. Also called the mechanical damping of the subwoofer. This unitless measurement usually varies from 0.5 10.
8.29
Efficiency Bandwidth Product (EBP)
This number represents the trade off between having an efficient woofer and one with a wide bandwidth. To calculate this number, take the Fs and divide it by the Qes. If the number is below 50, the woofer is designed for a sealed enclosure only. If it's between 50-100 it can be used in either. Lastly, if it's greater than 100 it's designed for vented enclosures.

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
70%
4 Star
20%
3 Star
10%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.2
Value
4.7
Features
4.1
Design
4.8
Usability
4.6
Slandis3

Tipp City, OH

Overall
Durability
Value
Features
Design
Usability
Good buy

March 10, 2014

I would recommend these for anyone wanting entry level bass in their car. The fit is great, binding post are well made and hold the wires tight. Only bad is the rubber surrounds are really soft and will tear very easily if you get something aginst them.

0 of 0 found this helpful

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Blazn_1

Polson,MT

Overall
Durability
Value
Features
Design
Usability
You get what you pay for.

October 7, 2013

I like how the sound hits hard, but it just can't handle the heat. I have it evenly matched with a 200 watt rms amp @4 ohm and it sounds great at first but after a 2 hard bass songs @ 3/4 power you can smell them :( they get hot. My last sub I replaced it for didn't get hot that fast, I could go an hour full power. I think maybe I should go with the punch sieres just $30 more. 250 rms yah for 1 min. I hope better from the P2 d2 we'll see?!

0 of 0 found this helpful

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skully

grand island nebraska

Overall
Durability
Value
Features
Design
Usability
you want these.

September 17, 2013

I installed 2 of these in my 95 silverado with an under seat box running a Kenwood excelon head unit And 1000w Kenwood amp... 2 hours after hooking them up I hit 140.7 at the local db drag at roughly 3/4 power. Now after having more time tuning my amp And head unit I'm very curious to see how they do. I run them hard on a daily basis And not once have I had a problem. And they hit pretty hard for the cost.

0 of 0 found this helpful

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jet

NC

Overall
Durability
Value
Features
Design
Usability
Its Rockford.. whats not too love?

March 22, 2013

I bought 2 of these and I knew they would be good since they're Rockford's but I only have one installed right now powered by a very old Alpine V12 120 watt amp which is nowhere near enough and its a 4ohm amp so if I bridge it the amp cuts off periodically, so its pushing about 60 or so watts to this speaker and it still sounds awesome, it's clear and would be pretty loud if it has the right wattage, and hits some pretty low notes, overall it's an amazing budget sub, but if you want too be really loud go with the p2, p3, or a power... once you own a Rockford they will ruin all other brands for you.

0 of 0 found this helpful

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Michael

Canada

Overall
Durability
Value
Features
Design
Usability
Worth the price

September 10, 2012

This sub it worth it's price as long as you give it enough power it does the job. I'm only feeding it 240W in a sealed box and my gain control is only half way with my head unit sub control on -16! The sub produces just the right bass not too soft and not too punchy. Awesome sub for a budget SQ or loud and clear setup!

0 of 0 found this helpful

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SlyGuy

Columbus, GA

Overall
Durability
Value
Features
Design
Usability
One word - "Quality"

September 4, 2012

These are GREAT subs. I just received the 2 I ordered today so they are not fully broke in yet but still sounded awesome straight out the box. I am using a sealed enclosure and I'm very impressed. The prices are unbeatabl

0 of 0 found this helpful

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Petey

Idaho Falls, Idaho

Overall
Durability
Value
Features
Design
Usability
Great Sub

August 12, 2012

I have had 2 of these hooked up for about 6 months now and haven't had a single problem yet. They hit hard for the price and look very clean and crisp. Honestly to the average person who wants a system these if hooked up right and to a good amp will blow you away. If you are one of those people who already has a taste for subs and wants something crazy, spend a little more money and get something else.

0 of 0 found this helpful

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Austin

Pine Haven, WY

Overall
Durability
Value
Features
Design
Usability
Love it.

June 20, 2012

I have this sub wired up at 4 ohms giving it about 300 watts. Let me tell you, this sub hits for only costing $70. I've been running full tilt for about a year and haven't a single problem.

0 of 0 found this helpful

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Timmy

Saint Cloud, MN

Overall
Durability
Value
Features
Design
Usability
Good Sound Quality

March 19, 2012

These subs are very good beginner subs but they aren't going to tear a car apart with spl. I have two running from a Soundstorm 2000 watt amp like the other person that wrote a review on these. That amp pushes about 375 watts to each sub at 4 ohms, and they can't handle the full power, but they do sound really great. These speakers look sexy and are built very well. If I were to do it again I would have spend 25 dollars more and got something a little nicer.

0 of 0 found this helpful

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Drew

Belleville , MI

Overall
Durability
Value
Features
Design
Usability
Great Value

July 15, 2011

I have 2 of theses but at duel 4 ohm. they are crisp sounding and are great for a beginner or just for someone looking for great sound. i have them hooked up to a soundstorm 2.2000 amp with the gain about half way. the only real con i think is that they can not handle a lot of watts even the rated watts push them kinda hard so i would get a warranty just in case if you abuse your subwoofers.

0 of 0 found this helpful

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Accessory Tools and Products

Accessories added

Single 12" Venteded MDF Subwoofer Enclosure

12" Vented 3/4" MDF Enclosure Lined w/ Polyfil.

Your Price $54.99

25 ft. of Streetwires 12 Gauge Speaker Cable

You'll need speaker wire to hook up that new subwoofer!

Your Price $44.95

Dynamat Sound Dampening Trunk Kit

Did you know sound dampening will reduce those annoying rattles and even increase your SPL?

Your Price $109.95

Stinger Sound Dampening Trunk Kit

Stinger's Roadkill sound dampening series is sure to kill unwanted road noise and rattles! Enough sound dampening for your whole trunk!

Your Price $69.99

12 oz. Can of Adhesive Spray

Spray adhesive used for adhering carpet to subwoofer boxes without bubbles.

Your Price $6.99

40" x 15 Ft Piece of Premium Un-Backed Automotive Trim Carpet

Durable design for long life-span, available in many colors and shades.

Your Price $39.99

Gold Plated Dual Terminal Banana Plug Connector

Enables an expandable, secure connection accepting up to 8 gauge wire.

Your Price $1.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $14.99

Cordless Multi-Functional Heat Tool Soldering Iron Kit

Continuous working lock allows you to work without holding down trigger.

Your Price $79.99

4 Ft of 1/4" Thick Black Heat Shrink Tubing

Provides abrasion resistance and added protection for your cables.

Your Price $3.99

2" Universal, Professional Heavy Duty Roller for Sound Damping/Dampening

Universal rubber roller to make it easy to install sound dampening.

Your Price $7.99

1mm All Purpose Solder

Solder is all purpose for use on most projects where solder is needed.

Your Price $8.99

12" Protective Waffle Subwoofer Grille

Keep your subwoofer looking amazing while keeping it safe.

Your Price $4.99

Scosche SPL Meter

Monitor the noise level of your new car audio system with this SPL meter measuring from 60-135 dB.

Your Price $21.99

Impedance Meter / Signal Generator

Easy to locate tuning frequencies of passive radiators and ported enclosures

Your Price $299.99

1 Rockford Fosgate R2D2-12 Subwoofer

Mono Amp

Mono Amp - Option 1

2 Channel Amp - Bridged

2 Rockford Fosgate R2D2-12 Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

3 Rockford Fosgate R2D2-12 Subwoofers

Mono Amp

Mono Amp - Option 1

4 Channel Amp

4 Rockford Fosgate R2D2-12 Subwoofers

2 Channel Amp

4 Channel Amp

Browse 2 questions and 2 answers
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Why did you choose this?
Sonic Electronix Store
Low power high efficiency driver.
Lee P on Nov 25, 2014
what box would work best for 2 of these subs?
Alec L on Nov 23, 2014
Best Answer: Hello Alec,

The Atrend 12DQV makes for as close to a Perfect match as you are going to get , from a Pre-Fab. The subs ask for 1.79 cubic feet PER SUB, and the 12DQV is providing 1.80 cubic feet (per chamber) BEFORE displacement. Once the sub is loaded, the Volume will fall well within the 1.79 that the sub(s) require.
Atrend 12DQV
Atrend 12DQV
Reply · Report · Customer SStaff on Nov 23, 2014
· Add Answer · I Have This Question Too (0)

Product Summary

Manufacturer

Model Number

R2D2-12

UPC

780687332556

Weight

9.88lbs

Internal SKU

r2d212

Internal Product ID

33742

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Rockford Fosgate R2D2-12

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