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 R2SD2-10
Prime R2 Series 10" shallow-mount sub with dual 2-ohm voice coils
Item # 575R2SD210 | MFR # R2SD2-10
This item is no longer available.
Our take on the Rockford Fosgate R2SD2-10 by Crutchfield's Jo Greene
Rockford Fosgate's Prime R2 shallow-mount subs deliver satisfying bass even in smaller cars where space is tight. A special elevated motor structure lets these low-profile subs work in extremely compact enclosures, while still handling plenty of power.
The R2SD2-10 sub features a 10" mica-injected polypropylene cone that works with a high-density poly-foam surround to punch out fat, deep notes. This shallow-mount workhorse will handle up to 200 watts RMS, with a mounting depth of only 3-1/2". Rockford Fosgate stitches the tinsel leads that carry the signal to the voice coils directly into the cone, so they'll hang tough through heavy use. The stamped solid-steel frame offers the same venting found in standard-mount Rockford Fosgate subs to keep this sub running cool.
Dual 2-ohm voice coils allow you to wire this sub for 1- or 4-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.
To drive this single subwoofer, we recommend a mono amplifier rated between 150 and 300 watts RMS at 4 ohms. For more information, please refer to our article on How to Match Subwoofers and Amplifiers.
Awesome speakers at an awesome price
Nicholas, Little Rock, Arkansas
What's in the Box:
- One shallow-mount 10" Dual 2-ohm voice coil woofer
- Eight 1-1/8" Self-tapping screws
- 4mm Allen bit
- Installation and Operation manual (English/ French/ Spanish/ German)
- 10" shallow-mount subwoofer with dual 2-ohm voice coils
- mica-injected polypropylene woofer cone with poly-foam surround
- stamped solid-steel frame
- power range: 100-200 watts RMS (400 watts peak power)
- frequency response: 45-250 Hz
- sensitivity: 82 dB
- top-mount depth: 3-7/16"
- sealed box volume: 0.7 cubic feet
- ported box volume: 1.4 cubic feet
- warranty: 1 year
- Our 60-day money-back guarantee
Rockford Fosgate R2SD2-10 Reviews
Average Customer Review(s):
Thanks for submitting your review
Features and Specs
|Impedance||1 ohm or 4 ohms|
|Cone Material||Mica injected Poly|
|Ideal Sealed Box Volume (cubic feet)||0.7|
|Ideal Ported Box Volume (cubic feet)||1.4|
|Port diameter (inches)||4|
|Port length (inches)||13.7|
|Dual Voice Coil||Yes|
83 dB at 1 watt
|Frequency Response||38 - 250 Hz|
|RMS Power Range (Watts)||100-200|
|Peak Power Handling (Watts)||400|
|Top Mount Depth (inches)||3 7/16|
|Bottom Mount Depth (inches)||N/A|
|Cutout Diameter or Length (inches)||9 1/16|
|Parts Warranty||1 Year|
|Labor Warranty||1 Year|
Shallow Mount Design: The Rockford Fosgate Prime R2 Shallow Subwoofer is designed and engineered with a much smaller motor assembly which reduces the overall depth of the woofer allowing it to fit in shallower enclosures and tighter locations of your vehicle.
Dual 2-ohm Voice Coils: This woofer features dual 2-ohm voice coils to offer wiring flexibility. When the voice coils are wired in parallel the woofer presents a 1-ohm load, when wired in series it presents a 4-ohm load.
Spring Post Assembly: The woofer features compression input terminals with attached 16-gauge stitched tinsel lead wires. The nickel plated spring posts will accept pin connectors, single banana plugs, and bare wire up to 12-gauge.
Sealed Box Volume: Rockford Fosgate recommends a sealed enclosure with an optimum internal volume of 0.7 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.
Vented Box Volume: Rockford Fosgate recommends a vented enclosure with an internal volume of 1.4 cubic feet using a 4" diameter x 13.7" long port tube; this yields a tuning frequency of 42 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 35 Hz).
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?
I needed a shallow amount sub to fit behind the seat of a 1984 C10 pick-up. This one fit perfectly and really surprised me with the sound. [ WILLIAM Dec 05, 2016 ]
Awesome speakers at a great price [ Nicholas Jul 08, 2016 ]
heard its the best brand for sub woofers [ Robert Lee May 06, 2016 ]
It seems thst it will fit as a replacement for my 2002 Toyota Solara SLE convertible, the price was low, is a shallow mount, and appears to be rated highly. [ MARK Apr 08, 2016 ]
it looks like it will fit my truck good [ Michael Apr 02, 2016 ]
1 question already asked
I used this in a sealed box. I also am powering with an amp that is way to much wattage. The gain turned down about half. Depending on your power situation and of course style of music will depend on application. If underpowered, use ported boxes. [ David Dec 02, 2014 ]
I built a custom box for my f-150 and only placed a single sub beacuse I did not want the bass to over power the cab. The box is 12"w 6"t 14L. I would recommend two smaller boxes instead of one long dual sub box so the air flow does not get wasted inside the box all the sound will travel from the box into the cab with two single enclosures. If you do need to make or purchase a single dual sub box make sure it has a vent tube in the center so you can get more then just one frequency of bass and all around lows. You can find plenty of diagrams online if you want to make one or you can also lok up ones made specificaly for your truck. With a single cab it might be easier to build what you want for space and location. Hope that helps and congrats on the new system. [ Joshua Nov 30, 2014 ]