Garage
Shop

See all parts that fit your 2012 Fiesta

Rockford Fosgate Prime R1S4-12

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

Product videos
highlight-star-icon

• 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


Loading...
UTE-73BT main

Alpine UTE-73BT

Single DIN Digital Media Receiver with Bluetooth (SiriusXM Ready)

44
-16.69%

$149.95

List price $180.00

VSP65KIT main

NVX VSP65KIT

750W Peak (250W RMS) 6.5" V-Series 2 Way Component Car Speakers

84
-15.39%

$109.99

List price $129.99

XED650C main

Cerwin-Vega XED650C

600W Peak (70W RMS) 6.5" XED Series 2-Way 4-ohm Component Speaker System

28
-16.67%

$64.99

List price $77.99

H7653 main

Cerwin-Vega H7653

680W Peak (120W RMS) 6.5" HED Series 3-Way Coaxial 4-ohm Speakers

43
-16.67%

$79.99

List price $95.99

H7652 main

Cerwin Vega H7652

640W Peak (120W RMS) 6.5" HED Series 2-Way Coaxial 4-ohm Speakers

31
-16.67%

$69.99

List price $83.99

Pioneer AVH-3500NEX

7" Single DIN Flip-Out Touchscreen CD/DVD Receiver with Bluetooth, Apple CarPlay and Android Auto (SiriusXM Ready)

9
-10.75%

$829.99

List price $930.00

JBL Stage3 627F (STAGE3627FAM)

270W Peak (90W RMS) 6.5" Stage3 Series 2-way Coaxial 3-ohm Speakers

3
-20.01%

$79.95

List price $99.95

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


Loading...
Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers

122
-33.36%

$79.96

List price $119.99

Limited time!
46CSC6934 main

Kicker CSC693 (46CSC6934)

900W Peak (300W RMS) 6x9” CS Series 3 Way Coaxial 4-ohm Speakers with Integrated Midrange Speakers

40
-30.02%

$111.96

List price $159.99

Limited time!
Club 622 main

JBL Club 622

360W Peak (120W RMS) 6.5" Club Series 2-way Coaxial 3-ohm Speakers

5
-28.58%

$99.95

List price $139.95

43DSC6504 main

Kicker DSC650 (43DSC6504)

480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)

28
-10.53%

$84.99

List price $94.99

CV15BT main

Cerwin-Vega CV15BT

Single Din Digital Media Receiver with Bluetooth

3
DB652 main

Polk Audio DB652 (DB 652)

600W Peak (200W RMS) 6.5" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers

12
-9.16%

$109.00

List price $119.99

UTE-73BT main

Alpine UTE-73BT

Single DIN Digital Media Receiver with Bluetooth (SiriusXM Ready)

44
-16.69%

$149.95

List price $180.00

SXE-6926S main

Alpine SXE-6926S

280W Peak (90W RMS) 6x9” SXE Series 2-way 4-ohm Coaxial Speakers

13
-20.84%

$56.99

List price $71.99

MPK 163.3 main

Hertz MPK163.3

600W Peak (300W RMS) 6.5" Mille PRO Series 3-way 4-ohm Component Speaker System

2
-14.89%

$999.99

List price $1175.00

PNW-65CS2 main

AudioControl PNW-65CS2

250W Peak (200W RMS) 6.5″ PNW Series 2 Way Component 3-ohm Speakers

4
-5.90%

$319.00

List price $339.00


Best selling similar products

Marine Club 12 small

JBL CB122 Club Marine 12

• Peak Power: 1200 watts
• RMS Power: 400 watts
• Polypropylene Cone
• Rubber Surround
• Impedance: Single 4 ohm
• Mount depth: 7-13/16"
• Sensitivity: 89 dB

(1)

$119.95

List price $379.95

VCW124v3 small

NVX VCW124 Version 3 (VCW124v3)

• Peak Power: 2400 watts
• RMS Power: 1200 watts
• Impedance: Dual 4 ohm
• Carbon Fiber Enhanced Non-Pressed Paper Cone
• Custom High Roll Foam Surround with black nylon stitching
• Mount depth: 7.02"
• Sensitivity: 85 dB (1W/1m)

(132)

$239.99

List price $287.99

SQW124 small

NVX SQW124

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 3.51"
• Sensitivity: 84 dB

$299.99

List price $359.99

12W6v3-D4 small

JL Audio 12W6v3-D4

• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Mineral-Filled Polypropylene Cone
• Butyl Rubber Surround
• Mount depth: 7.52"
• Sensitivity: 85.4 dB

(25)

$949.99

List price $949.99

VCW122v3 small

NVX VCW122 Version 3 (VCW122v3)

• Peak Power: 2400 watts
• RMS Power: 1200 watts
• Impedance: Dual 2 ohm
• Carbon Fiber Enhanced Non-Pressed Paper Cone
• Custom High Roll Foam Surround with black nylon stitching
• Mount depth: 7.02"
• Sensitivity: 85 dB (1W/1m)

(94)

$239.99

List price $287.99

SRX1240 small

Memphis SRX1240

• Peak Power: 500 watts
• RMS Power: 250 watts
• Impedance: Single 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 4.92"
• Sensitivity: 85 dB

$79.99

List price $139.95

SW-M12D2 small

Sundown Audio M-12 D2 12" (M12D2)

• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Impedance: Dual 2 ohm
• Polypropylene Cone
• High Roll Foam Surround
• Mount depth: 10.88"
• Sensitivity: 80.6 dB

(1)

$599.99

List price $719.99

Stage 122 small

JBL Stage 122 (JBLSUBST122AM)

• Peak Power: 1000 watts
• RMS Power: 250 watts
• Impedance: Single 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 6"
• Sensitivity: 91 dB

$109.95

List price $129.95

YSW122 small

NVX YSW122

• Peak Power: 1600 watts
• RMS Power: 800 watts
• Impedance: Dual 2 ohm
• Enhanced Pressed Paper Cone
• High Roll Foam Surround
• Mount depth: 6.5"
• Sensitivity: 85 dB

(3)

$149.99

List price $227.99

12TW3-D4 small

JL Audio 12TW3-D4

• RMS Power: 400 watts
• Impedance: Dual 4 ohm
• Mica Injected Polypropylene - MIPP Cone
• Rubber Surround
• Mount depth: 3.5"
• Sensitivity: 84.11 dB

(20)

$569.99

List price $569.99

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 ohm
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
T/S Parameters (Electromechanical)
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 ohm
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


Rockford Fosgate Prime R1S4-12 thumbnail image

5 star
75%
4 star
18%
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

Sort by:

Loading...

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

28 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

26 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

26 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

24 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


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

24 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

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

23 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

23 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

22 found this helpful




EA1251 small

Clarion EA1251 ( EA1251B )

CeNET iPod Control Interface for Ce-NET Stereos

(3)

$79.99

List price $109.99

RE-6.5C small

RE Audio RE6.5C

6.5" 2-Way RE Series Component Car Audio Speaker System

(12)

$119.99

List price $299.99

UM1 Clear small

Westone UM1 Clear Earphones In-Ear Monitor Headphones/Earbuds

Universal Series In-Ears/Ear Buds Single Balanced Armature Monitors w/ G2 EPIC (Round) Cable 79486

(3)

$69.00

List price $149.00

3XL-50C small

PowerBass 3XL-50C

320W Peak (160W RMS) 5.25" 3XL Series 3-Ohm Convertible Coaxial/Component Car Speakers

(2)

$59.99

List price $149.99

CLUB-5501-z small

JBL CLUB-5501 Monoblock Amplifier (Renewed)

1300W Peak (550W RMS) Club Series Class D Monoblock Amplifier

(1)

$89.95

List price $230.00

BBSW167,MDFS12,AR120DVC small

Boss Audio AR120DVC + Free Sealed Sub Enclosure

1600W Max 12" Armor Series Dual 4 ohm Car Subwoofer Package

(192)

$144.97

List price $177.46

XQWE112S,XQW124 small

NVX 12" X-Series Loaded Subwoofer Enclosure

400W RMS, 12" X-Series Dual 4 ohm Car Subwoofer with Sealed Subwoofer Box

(10)

$229.98

List price $619.98

No picture

Precision Power PVI.265Bi - Open Box, Very Good Condition (Used)

In-Dash 6.5" Touchscreen DVD/MP3/CD/SD/USB Car Stereo Receiver w/ Bluetooth

$119.95

List price $379.95

Related Searches


Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

2012 Ford Fiesta

2007 Toyota Corolla

2022 Kia K5

1986 Dodge Diplomat

1997 Ford Taurus

2000 Mercury Sable

1986 Ford LTD

2003 Ford Focus

2017 Ford Taurus

1981 BMW 528i

Vehicle
Store
Delete

2000 Harley Davidson FXR4

Vehicle
Store
Delete

2012 Can-Am Commander 1000 LTD

2016 Can-Am Commander 1000 XT

2015 Can-Am Commander Max 1000 DPS

Add vehicle Clear all vehicles
Where to find vehicle info
Are you sure you want to clear your garage?
This action cannot be undone. Confirm
This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.