Why Choose Crutchfield?
Great gear and expert advice
Our experts help you pick the ideal gear for your needs.Meet our advisors
Free tech support for the life of your gear.Read about our one-on-one expert help
You may return items that are complete and like new for any reason within 60 days.See the details of our return policy
Earn one point for every dollar you spend and use those points to save on future purchases.Get full details on Crutchfield Rewards
Deep discounts on car installation gear
We offer vehicle-specific installation instructions, dash kits, wiring harnesses, and speaker accessories at deeply discounted prices with car stereo and speaker purchases. Available for most vehicles.Learn more
Trusted since 1974
Our customers have trusted us with their business, and they’ve helped us win awards for our service.Check out our most recent awards
The manufacturer’s warranty always applies.See more details
Rockford Fosgate R2D4-10
Prime R2 Series 10" subwoofer with dual 4-ohm voice coils
Item # 575R2D410 | MFR # R2D4-10
Special Purchase: -$10.00
$59.99 each Earn up to 60 Rewards points
Offers & Financing
Our take on the Rockford Fosgate R2D4-10 by Crutchfield's Jo Greene
Rockford Fosgate's Prime R2 subs deliver strong bass in your car, and they are definitely built to last. The R2D4-10 sub features a 10" mica-injected polypropylene cone that works with a high-density poly-foam surround to punch out fat, deep notes. Rockford Fosgate stitches the tinsel leads that carry the signal to the voice coils directly into the cone — they'll hang tough through heavy use so you get consistent, reliable performance. The stamped solid-steel frame offers venting usually found in high-end subs that keeps this sub running cool.
Dual 4-ohm voice coils allow you to wire this sub for 2- or 8-ohm impedance, giving you more flexibility in setting up your system. Rockford Fosgate optimizes this Prime sub for both sealed and ported enclosures so you can choose the type of bass you want in your ride.
Need an amp for this sub? Check out this Crutchfield-approved bass package.
To drive this single subwoofer, we recommend a mono amplifier rated between 200 and 375 watts RMS at 2 ohms. For more information, please refer to our article on How to Match Subwoofers and Amplifiers.
Great speaker picks up the lows just the way I want and a breeze to install, used to replace factory sub in my Acura fit like a dream
Anonymous, Azle, TX
What's in the Box:
- One 10" Dual 4-ohm voice coil subwoofer
- Eight 1-1/8" Allen head screws
- 4mm Allen head bit
- Installation/Operation manual (English/ French/ Spanish/ German)
- 10" subwoofer with dual 4-ohm voice coils
- mica-injected polypropylene woofer cone with poly-foam surround
- stamped solid-steel frame
- power range: 50-250 watts RMS (500 watts peak power)
- frequency response: 45-250
- sensitivity: 87 dB
- top-mount depth: 4-3/8"
- sealed box volume: 0.59 cubic feet
- ported box volume: 1.4 cubic feet
- warranty: 1 year
- Our 60-day money-back guarantee
Rockford Fosgate R2D4-10 Reviews
Average Customer Review(s):
Thanks for submitting your review
Features and Specs
|Impedance||2 ohms or 8 ohms|
|Cone Material||Mica injected poly|
|Ideal Sealed Box Volume (cubic feet)||0.59|
|Ideal Ported Box Volume (cubic feet)||1.4|
|Port diameter (inches)||4|
|Port length (inches)||13|
|Dual Voice Coil||Yes|
86.6 dB at 1 watt
|Frequency Response||45 - 250 Hz|
|RMS Power Range (Watts)||50-250|
|Peak Power Handling (Watts)||500|
|Top Mount Depth (inches)||4 7/16|
|Bottom Mount Depth (inches)||N/A|
|Cutout Diameter or Length (inches)||9 1/16|
|Parts Warranty||1 Year|
|Labor Warranty||1 Year|
Overview: The Rockford Fosgate Prime R2D4-10 is a 10-inch subwoofer with dual 4Ω voice coils. The sub features a StampCast steel frame, quick-release compression terminals, and a mica injected polypropylene cone. An anodized aluminum voice coil former and spider venting help keep the subwoofer cool.
Steel Basket: The R2D4-10 subwoofer features a StampCast steel basket for added rigidity.
Compression Terminals: The Prime R2D4-10 features spring post terminals which accommodate speaker wire up to 12 gauge.
CEA-2031 Compliant: Power handling on the Rockford Fosgate Prime R2D4-10 subwoofer conforms to CEA-2031 industry standards. This means the subwoofer has the capacity to handle power under continuous demand, not instantaneous power handling, that over time, can damage voice coils.
Sealed Box: Rockford recommends a sealed enclosure with an optimum internal volume of 0.59 cubic feet (from 0.5 to 0.75 cubic feet is acceptable). Sealed enclosures provide the most control over a woofer, will handle a lot of power, and provide accurate sonic reproduction, making them suitable to all types of music.
Ported Box: Rockford recommends a ported enclosure with an internal volume of 1.4 cubic feet using one 4" diameter x 13" long port; this yields a tuning frequency of 43 Hz. Ported (or vented) enclosures typically provide better overall efficiency than sealed so they are suitable for use with smaller amplifiers, giving you more bass output from less power. However, this efficiency comes at the expense of very low frequency output (below 40Hz).
Our Product Research Team
At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.
Why did you buy this?
Great choice for the s10 truck [ ROBERT May 13, 2017 ]
LOVE ROCKFORD FOSGATE. GREAT PRODUCT. LOW COST. [ William Mar 16, 2017 ]
Item needed for my box [ Braian Mar 13, 2017 ]
I did some research and this seems to be what i'm looking for !! [ mike Mar 11, 2017 ]
The price [ John Mar 06, 2017 ]
levi suggested [ david Dec 11, 2016 ]
Price to quality ratio [ Thomas Oct 14, 2016 ]
One of my subwoofers had a hole in it and my aunt recommended this brand. it was cheap and of great quality so I went ahead and purchased it! Can't wait until it arrives :) [ helena Aug 21, 2016 ]
Recommended by one of your techs. [ Juan Aug 08, 2016 ]
I already have a P3001 Rockford mono amp installed that is 150x1@4-ohms or 300x1@2-ohms and I have an old Polk SVC sub currently (for 3 years!) that is only using 150 watts from the sub at 4-ohms, so I needed a budget DVC sub that can kick so I can wire it to present 2-ohms to the amp and get the full 300 watts from it. Yay RF and Crutchfield! [ Justin Jun 05, 2016 ]
I know people that has them an they sound good. So I will try them out. [ Sean Jan 07, 2016 ]
5 questions already asked
Thanks for your question. For information on selecting the best subs for your amp I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences between the sub models and help you make the best choice for your system. [ Kenny Apr 17, 2017 ] Staff
Thanks for your question. Mounting depth is listed as 4-3/8". Hope this helps. [ Kenny Mar 13, 2017 ] Staff
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle. [ Kenny Dec 15, 2015 ] Staff
Hi. I have a stereo amp, but I run it in "bridged" mode. If my memory serves me right, it's a 2 ohm amp, and I ran the 2 speaker coils wired in parallel. So, it's bridged to mono. I previously tried the "stereo" route with it, but it didn't sound better, and I think not as loud. [ Russell Dec 05, 2015 ]
try this link. http://www.crutchfield.com/S-I6MUq4yYgxX/learn/learningcenter/car/subwoofers_wiring.html [ PATRICK Jul 06, 2014 ]
Each speaker has two four ohm coils in it, so you need to wire each speaker in series (positive to negative) then the two speakers in parallel from the amp (positive to positive : negative to negative) The math works out to a 4 ohm load. [ TIMOTHY Jul 03, 2014 ]