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Rockford Fosgate Prime R1S4-12

400W Max (200W RMS) 12" Single 4-Ohm R1 Prime Series Subwoofer

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• 300W Max
• 150W RMS
• Parabolic Polypropylene Woofer Cone
• 1.5" Single 4 Ohm Voice Coil Design
• Proprietary Powder Coated Stamped Steel Frame
• High Temp Copper Voice Coil W/Aluminum Former
• CEA-2031 Compliant

Learn more about the r1s4-12

We apologize

This item has been discontinued

Product Highlights


• 300W Max
• 150W RMS
• Parabolic Polypropylene Woofer Cone
• 1.5" Single 4 Ohm Voice Coil Design
• Proprietary Powder Coated Stamped Steel Frame
• High Temp Copper Voice Coil W/Aluminum Former
• CEA-2031 Compliant

Description


Rockford Fosgate brand icon

Authorized dealer

General Features:

  • 12" Single 4-Ohm Prime Series Subwoofer
  • Power Handling:
    • Peak: 400 watts
    • RMS: 200 watts
  • Recommended power range: 100 - 200 watts RMS
  • CEA-2031 compliant
  • Verified with Klippel speaker certification
  • 12 AWG compression terminals
  • Fiber reinforced painted paper-pulp woofer cone
  • High temperature 2" voice coil
  • Laser-etched aluminum dustcap
  • High durability compressed foam surround
  • Proprietary powder coated stamped steel frame with spider cavity venting
  • Fatigue resistant poly-cotton spider with integral woven leads
  • High temperature copper voice coil with aluminum former
  • Integrated ABS decorative trim ring
  • Stamped mesh grille insert available: Rockford Fosgate R1G-12
  • Mounting Depth: 5.0"
  • Cutout Diameter: 10.94"
  • Magnet Weight: 52.47oz
  • Frequency Response: 22 - 250 Hz
  • Xmax: 6.3mm
  • Sensitivity: 87 dB @ 1 watt / 1 meter
  • Optimized for sealed enclosures
  • Recommended Sealed Enclosure: 0.70 - 1.80ft³
  • Matching Amplifiers: (one subwoofer)
  • Matching Amplifier: (two subwoofers)
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually

Check out the Rockford Fosgate R1S4 Series Owner's Manual

Tips for Installing the R1S4-12 Subwoofer


Product history:

Rockford Fosgate R1S4-12 thumbnail
(newest, current model)
Rockford Fosgate R1S412 thumbnail
(previous model, replaced by Rockford Fosgate Prime R1S4-12)

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Rockford Fosgate Prime R1S4-12 Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Rockford Fosgate Prime R1S4-12 Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Rockford Fosgate Prime R1S4-12 Subwoofers

4 Channel Amp

Wiring Guide to Wire 4 Rockford Fosgate Prime R1S4-12 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Specifications & Details


Subwoofer Specifications
Series
Prime R1 Series
Subwoofer Size
12"
Peak Power Handling
400 watts
RMS Power Handling
200 watts
Voice Coil(s)
Single
Impedance (Per Voice Coil)
4 ohms
Voice Coil Diameter
2"
Frequency Response
22 - 250 Hz
Sensitivity
87 dB
Xmax (millimeters)
7 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Fiber Impregnated
Woofer Surround
Foam
Magnet Structure
Single Stacked
Re-Cone Kit Available
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Sealed
Minimum Sealed Box Volume
0.70 cubic feet
Optimum Sealed Box Volume
1.02 cubic feet
Maximum Sealed Box Volume
1.80 cubic feet
Top-Mount Depth (Mounting Depth)
5"
Cutout Diameter
10.94"
Shallow Mount Installation
No
Electromechanical Parameters
Free-Air Resonance (Fs)
30.5 Hz
Equivalent Compliance (Vas)
197.2 liters
Total Speaker Q Value (Qts)
0.49
Electrical Q Value (Qes)
0.58
Electrical Resistance of Voice Coil (Re)
3.39 ohms
Mechanical Q Value (Qms)
4.76
What is in the box?
Paperwork
User manual
WITB: Subwoofers
Subwoofer
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

R1S4-12

Weight:

9.00lbs

Internal SKU:

r1s4-12

Internal Product ID:

78110

Product and How-to Videos


  • 3Sixty3 Aftermarket Setup Wizard Tutorial
  • Car Subwoofer Size Buying Guide | What Size of Sub Should I Get?
  • How to Install a Car Subwoofer in a Box

Customer Ratings & Reviews



5 star
74%
4 star
19%
3 star
7%
2 star
0%
1 star
0%



Durability
4.7
Value
4.9
Features
4.3
Design
4.6
Usability
4.9

Customer Reviews

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great cheap subs

The following review is for R1S412, which is a part of the bundle you are viewing.

these subs are awsome for there price dont expect to win any comp with them but the hit hella good i bought 2 of them put them in a sealed box running from a 800watt amp in my 4 runner and they make my nose tickle if your gettin started in car audio these are great damn near stupid proof hook them up and play

By matthew on February 20, 2013

26

found this helpful.

Great Sub!!

The following review is for R1S412, which is a part of the bundle you are viewing.

I have just purchased this sub and must say it is a beast! I have it in the lowest air space box being pushed by a Lanzar 1000 watt amp and it hits! Great buy for the money and Rockford always delivers good stuff! I would really love to hear this sub in a bigger box so I might build one later on, you cant go wrong with this sub(s)!

By btrain on May 20, 2011

25

found this helpful.

Good for the money

The following review is for R1S412, which is a part of the bundle you are viewing.

i was originally going to get a p3, or a fi ssd. I love rockford fosgate and i decided to go with their entry level sub since it was cheap :] i am free airing it as im writing this and i am very pleased because i only have it on maybe 20rms. the construction is very sturdy and the sound quality is good so far. my box should be ready within the week so ill post another review of it with the box. it can hit the lows, if your just looking for some bass instead of spending a lot of money on a bigger sub just get a couple of these

By Dan on January 4, 2011

25

found this helpful.

Good Pricepoint

The following review is for R1S412, which is a part of the bundle you are viewing.

This sub just works. I think it has great value for performance.

By CECIL on July 24, 2011

23

found this helpful.

Great sub

The following review is for R1S412, which is a part of the bundle you are viewing.

I just installed this sub in my NISSAN ALMERA on a ported box (i know should be in a sealed box) and it is pounding really hard and I'm just using 100 watts rms on them. Bass is very loud and tight and its definitely doing a great job. If you are an enthusiast in car audio you can go for sure with this sub it will fit your needs

By Jose Castillo on April 28, 2010

23

found this helpful.

Unreal Sub!!

The following review is for R1S412, which is a part of the bundle you are viewing.

Amazing subwoofer for the price.. don't be skeptical about the price..worth every penny!!! works amazing with the Fosgate prime r150-2 amp..just got mine install with that set up...works like a charm!!! would recommend it to anybody looking to add some killer bass to their ride.

By Dave on August 26, 2010

23

found this helpful.

Rockford fosgate r1

The following review is for R1S412, which is a part of the bundle you are viewing.

I have two 12's of the RF R1 hook up too a boss 1500w mono block amp and man this woofer bumps really good for a single coil sub.

By Buk SingHay on July 23, 2012

21

found this helpful.

Wow Not Bad

The following review is for R1S412, which is a part of the bundle you are viewing.

ok so i was shopping around for some subs and i was about to buy some P2's but then i was like wth lets gives these a try, so i bought a pair and threw them in a sealed box and ran them off a RF Prime 2 Channel amp underpowering them by 100watts rms so 50 a piece and im shocked how good they sound for the money, bass is pretty nice and solid, sound quality is good, i cant wait to see how they sound like when i get the Punch-300 mono block on these suckers i think they will be as loud as the P1's but for less money

By basshead on August 26, 2009

22

found this helpful.

More Bang For Your Bucks

The following review is for R1S412, which is a part of the bundle you are viewing.

I was looking for some new subs for my Honda accord, I was looking into some JL audio 12's since I had them in the past, but the location I went to was no longer carrying JL products,so i figure I would get Fosgate since I also had hem in the past, well to make it short I was low on cash at the time I really wanted the P3 but instead I went with the R1 and man I just love the response of those subs when I need them to hit hard they do and when I need low frequency's they respond just as great, I have them in a sealed custom box been pushed by a mono block Hifonics of 600 watts at first I was scared to blow them with all of that power but the longer I had them the better I felt about them, now I just crank my volume with out a care and I know they will respond to my demands. I've had them for about 8 months and still as strong as the first day, they are a great buy for the buck I would definitely recommend them.

By senor grump's on April 4, 2011

21

found this helpful.

Great Sub

The following review is for R1S412, which is a part of the bundle you are viewing.

I like the way this SUB hits, low and hard...I would definitely recommend it...

By M Jamal on November 29, 2010

21

found this helpful.

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