Rockford Fosgate Prime R1-1X12

Sealed enclosure with one 12" Prime subwoofer

Item #: 575R11X12

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Maximum bass

Rockford Fosgate's Prime Series loaded sub enclosures fill your car with bass without emptying your bank account. These rugged sealed boxes feature 5/8"-thick medium-density fiberboard construction covered with a protective layer of heavy-duty black carpeting. And you can rely on Rockford Fosgate to create an enclosure that'll draw every ounce of bass out of its sub.

Handles up to 200 watts

The R1-1X12 sealed loaded enclosure comes with one Prime R1S4-12 12" sub. This 4-ohm sub handles up to 200 RMS watts and features a fiber-reinforced paper-pulp cone and compressed foam surround for big, booming bass.

Product Highlights:

  • sealed enclosure with one 12" Prime subwoofer
  • 5/8" medium density fiberboard construction covered with black carpet
  • 4-ohm total impedance
  • power handling: 200 watts RMS (400 watts peak power)
  • frequency response: 25-250 Hz
  • sensitivity: 90 dB
  • 17-3/4"W x 14-3/8"H x 12-1/2"D
  • warranty: 1 year (woofer only)
  • Our 60-day money-back guarantee

Enclosed Subwoofers 101

An enclosed subwoofer is a box with a subwoofer already installed. The advantage to buying an enclosed sub is that the manufacturer made the sub, then designed and built the box as a perfect match, so you'll get the best possible performance. Every enclosed sub has a maximum RMS power handling rating, so pair it with an amp with a similar RMS power rating to get the best performance.

Hands-on research

What's in the box?

Download owner's manual

  • Sealed enclosure loaded with one 12" woofer
  • Manual

Product Research

Features

Enclosure: The Rockford Fosgate Prime R1-1X12 features a sealed enclosure constructed of 5/8" MDF (Medium Density Fiberboard). The enclosure is covered with high density black carpeting. The sealed enclosure features high current compression terminals on the left side of the box (when facing the woofer). The enclosure's terminals will accommodate up to 12 AWG speaker wire. The enclosure's speaker terminals present a 4-ohm load to your amplifier.

Dimensions:

  • Width: 17-3/4"
  • Height: 14-3/8"
  • Depth (base): 12-1/2" (13-1/4" including the subwoofer)
  • Depth (top): 7-1/4" (8" including the subwoofer)

Woofer: The R1-1X12 enclosure is loaded with a single Rockford Fosgate Prime R1S4-12 subwoofer. The R1S4-12 is a 12-inch, 4-ohm single voice coil subwoofer with a fiber reinforced painted paper-pulp cone and compressed foam surround.

CEA-2031 Compliant: Power handling on the Rockford Fosgate Prime R1S4-12 subwoofer conforms to CEA-2031 industry standards. This means the subwoofer has the capacity to handle its rated power under continuous demand, not instantaneous power handling, that over time, can damage voice coils.

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 open the box, verify contents, 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.

Rockford Fosgate Prime R1-1X12 Reviews

Average Customer Review:

3 reviews
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Bumps pretty good for a single twelve.

Written By Chris, Virginia Beach, Virginia on Friday, November 28, 2014

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

I bought this subwoofer to add to my 2013 Scion Frs' audio system that was lacking in the bass department. This was the perfect thing for my needs, it doesn't overpower the speakers but adds the rich bass I was used to. It is fairly priced and will definitely get loud if you set it up right. It vibrates everything in the car but you can barely hear it on the outside which is good because I'm not trying to tick off my neighbors. (Exhaust does that quite well already :P) only bad thing is when I measured I didn't think about how the sides of the trunk slope downward so it only fits in the middle. But I didn't use it anyway so no real loss there.

Pros: Sounds great inside car, fair price, excellent quality.

Cons: Has to be in the middle but that was my error so I do not have any cons!

Rockford Fosgate Prime R1-1X12 Review

Written By gobosox, Manassas, VA on Sunday, August 24, 2014

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

The subwoofer is awesome, it hits good and I got a great deal. I got it quick and I'm very happy with Crutchfrields's customer support, I didn't know I had to give them my number to confirm my order and an actual person called me and let me know so I wouldn't lose the product. They could of just never called me and I never would of gotten the product. I'm so thankful for that and it makes me want to come back to crutchfield again for future electronic purchases.

Pros: The sub came in great packaging, it was easy to setup, and I had it bumpin in minutes. Crutchfield delivered it quick and was very helpful in the process. Crutchfield says it's the

Cons: The only con is now I want to buy more stuff for my speaker system because my music sounds so good and that's a plus depending on how you look at it, but it's most definitely a con for my checkbook haha.

You only need one.

Written By John S., Richfield, Ut. on Saturday, July 19, 2014

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

I have always been skeptical about just having one sub, not anymore. 150 watt amp with this sub is plenty, I find myself turning my sub level output from my receiver down so I don't drowned out the rest of my system with bass. This sub hits hard and the clean bass cords are clean and sound good. If your into subsonic lows it will numb your body and wiggle your brain.

Pros: High quality, looks cool, simply to use.

Cons: I think they could of spared a grill.

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