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 R1S412
Prime Series 12" 4-ohm subwoofer
Item # 575R1S412 | MFR # R1S412
This item is no longer available.
Our take on the Rockford Fosgate R1S412 by Crutchfield's Dominic DeVito
Get Rockford Fosgate bass in your car without a heavy investment. Prime Series subs use rigid polypropylene cones and butyl rubber surrounds to punch out powerful deep notes. Stamped solid-steel frames ensure long life, even under heavy fire, while the aluminum voice coil formers dissipate heat efficiently when you're pushing your system hard. And these subs look as mean as they sound.
The Prime R1S412 12" sub handles up to 150 watts RMS. Rockford Fosgate optimizes Prime subs for space-saving sealed enclosures, so you can expect highly accurate low end to complement your music.
Priced per speaker
Great subs for the price. Rockford Fosgate is a quality brand that was a no brainer to go with. I have 2 of these in a sealed box and they sound great! They add so much bass that I can't believe I used to listen to music without subs.
Jack, Arlington Hts, IL
What's in the Box:
- 12" SVC 4-ohm subwoofer
- Installation/Operation Manual
- 12" 4-ohm subwoofer
- polypropylene woofer cone with butyl rubber surround
- 18-gauge stamped steel frame
- power range: 50-150 watts RMS (300 watts peak power)
- frequency response: 22-250 Hz
- sensitivity: 87 dB
- top-mount depth: 4-15/16"
- sealed box volume: 0.7-1.8 cubic feet
- ported box volume: n/a
- warranty: 1 year
- Our 60-day money-back guarantee
Rockford Fosgate R1S412 Reviews
Average Customer Review(s):
Thanks for submitting your review
Features and Specs
|Surround Material||Butyl rubber|
|Ideal Sealed Box Volume (cubic feet)||1.02|
|Ideal Ported Box Volume (cubic feet)||N/A|
|Port diameter (inches)||N/A|
|Port length (inches)||N/A|
|Dual Voice Coil||No|
87 dB at 1 watt
|Frequency Response||22 - 250 Hz|
|RMS Power Range (Watts)||50-150|
|Peak Power Handling (Watts)||300|
|Top Mount Depth (inches)||4 15/16|
|Bottom Mount Depth (inches)||N/A|
|Cutout Diameter or Length (inches)||10 15/16|
|Parts Warranty||1 Year|
|Labor Warranty||1 Year|
Overview: The Rockford Fosgate Prime R1S412 is a 12-inch, 4-ohm single voice coil subwoofer. The Rockford Fosgate Prime subwoofer features a solid stamped steel frame, quick-release compression terminals, and a Parabolic polypropylene cone. The Prime R1S412 subwoofer is optimized for sealed enclosures.
Parabolic Polypropylene Cone Design: The Parabolic Polypropylene cone design results in solid bass reproduction.
Aluminum Voice Coils: The Rockford Fosgate Prime subwoofer uses anodized aluminum voice coil formers that provide excellent heat dissipation. The woofer's aluminum voice coils keep the speaker running cool, even under demanding conditions. Unlike traditional plastic substitutions, aluminum acts like a heat-sink to quickly dissipate thermal build-up on the voice coil. This keeps subwoofers cool during high SPL conditions.
Stamped Steel Basket: The R1S412 subwoofer features a stamped steel basket for added rigidity.
Compression Terminals: The Prime R1S412 features spring post terminals which accommodate up to 12 AWG speaker wire.
CEA-2031 Compliant: Power handling on the Rockford Fosgate Prime R1S412 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 Volume: The sealed box sizes recommended by Rockford Fosgate range from 0.7 cu/ft to 1.80 cu/ft. The ideal recommended volume is 1.02 cu/ft.
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.
1 question already asked
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. [ Krissy Apr 16, 2014 ] Staff