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Rockford Fosgate R1S4-12 12" Prime 300 Watt 4-Ohm SVC Subwoofer + Sealed Box

150W 12" R1 Prime Single 4-ohm Subwoofer Package

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• 300W Peak
• 150W RMS
• Parabolic polypropylene cone woofer
• Butyl rubber surround
• 2" 4-Layer voice coil
• Anodized aluminum voice coil former
• Solid, stamped steel basket

Learn more about the r1s412_1truck12

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Description


Rockford Fosgate brand icon

Authorized dealer

Rockford Fosgate PRIME R1S412

150W 12" R1 Prime Single 4-ohm Subwoofer
Quantity: 1

  • 12" Single 4 ohm PRIME Series Subwoofer
  • Power Handling:
    • Peak: 300 watts
    • RMS: 150 watts
  • Parabolic polypropylene cone woofer
  • Butyl rubber surround
  • 2" 4-Layer voice coil
  • Anodized aluminum voice coil former
  • Solid, stamped steel basket
  • 12 Gauge compression terminals
  • Optimized for sealing enclosures
  • CEA-2031 compliant
  • Frequency response: 22-250 Hz
  • Sensitivity: 87 dB
  • 1-year SonicElectronix.com warranty

Single 12" Subwoofer Angled Truck or Hatchback Box Enclosure

1TRUCK12 - CARB Compliant, 5/8" MDF Shallow Sub Enclosure Lined with Polyfil
Quantity: 1

Belva Subwoofer Boxes with Polyfill and 5/8-inch MDF

Built for Bass

You've got an awesome subwoofer there, pal. But where's it gonna go? You can't just throw that thing in the trunk and call it a day. Don't worry, Belva's got your back. With superior construction, great features and everything you need for bass, you'll be ready to pass up that entry-level box you've been eyeballing.

Belva Subwoofer Boxes are CARB Phase 2 Compliant

You get quality boxes with solid 5/8" MDF because nothing else will do the job right. You want to flex your windshield, not your box's innards. You get polyfill built into the box, making sure your subs perform perfectly. On top of that, you get a box that's CARB Phase 2 Compliant, meaning your box won't emit as much nasty formaldehyde as the competition. Better for your bass and better for you.


This angled 12" box is PERFECT for single cab trucks and hatchback vehicles looking to save some space. The box is fully carpeted and made with 5/8" MDF wood (Medium Density Fiberboard), not particle board.

  • High Quality 5/8" MDF Construction
  • Gold Binding Post Terminals
  • 0.75 CuFt
  • Color: Black
  • Dimensions: 18-1/4" W x 14-1/4" H x 8-1/2" BD x 5-1/2" TD
  • 30 Day return policy

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Rockford Fosgate R1S4-12 12" Prime 300 Watt 4-Ohm SVC Subwoofer + Sealed Box Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Rockford Fosgate R1S4-12 12" Prime 300 Watt 4-Ohm SVC Subwoofer + Sealed Box Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Rockford Fosgate R1S4-12 12" Prime 300 Watt 4-Ohm SVC Subwoofer + Sealed Box Subwoofers

4 Channel Amp

Wiring Guide to Wire 4 Rockford Fosgate R1S4-12 12" Prime 300 Watt 4-Ohm SVC Subwoofer + Sealed Box Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp


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Specifications & Details


Subwoofer Specifications
Series
Prime R1 Series
Subwoofer Size
12"
Peak Power Handling
300 watts
RMS Power Handling
150 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)
6.3 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Polypropylene
Woofer Surround
Butyl Rubber
Magnet Structure
Single Stacked
Subwoofer Grille
No
Re-Cone Kit Available
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Sealed
Minimum Sealed Box Volume
.7 cubic feet
Maximum Sealed Box Volume
1.8 cubic feet
Top-Mount Depth (Mounting Depth)
5"
Cutout Diameter
10-15/16"
Shallow Mount Installation
No
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
21.6 Hz
Equivalent Compliance (Vas)
197.2 liters
Total Speaker Q Value (Qts)
0.49
Electrical Q Value (Qes)
0.55
Electrical Resistance of Voice Coil (Re)
3.39 ohm
Mechanical Q Value (Qms)
4.76
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Item Details


Manufacturer:

Model Number:

1TRUCK12,R1S412

Weight:

25.00lbs

Internal SKU:

r1s412_1truck12

Internal Product ID:

156047

Customer Ratings & Reviews


Rockford Fosgate R1S4-12 12

5 star
77%
4 star
19%
3 star
4%
2 star
0%
1 star
0%



Durability
4.8
Value
4.9
Features
4.5
Design
4.7
Usability
4.9

Customer Reviews

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Mounting Depth is NEEDED

The following review is for 1TRUCK12, which is a part of the bundle you are viewing.

One thing that NEEDS to be in the description is the MOUNTING DEPTH of the box. This is CRUCIAL for determining which speakers will actually fit in the box. Once I received the box, I estimated the mounting depth to be somewhere like 5.5" for the sub. So this does limit certain models of subwoofers, but the one I chose fit perfect. I also enjoyed that this box came with poly-fill. Sounds great with my Alpine SWE-12.

By RocketyMan on February 22, 2014

124 found this helpful


Single 12" Subwoofer Angled Truck or Hatchback Box Enclosure

The following review is for 1TRUCK12, which is a part of the bundle you are viewing.

it is as discribed , well built and speaker fit well. it was a good price and had no defects.

By Clint on September 2, 2014

116 found this helpful


belva 12" subwoofer enclosure

The following review is for 1TRUCK12, which is a part of the bundle you are viewing.

excellent subwoofer enclosure for my 12" sub. The quality of the materials and the solid feel of the box exceeded my expectations

By jaz on December 19, 2014

109 found this helpful


Awesome Enclosure

The following review is for 1TRUCK12, which is a part of the bundle you are viewing.

Didn't expect a insulated enclosure...Everything fit prefect and the quality was far more than i thought i was gonna get. Gotta get another one when i add a new deck to my van.....Great speed in shipping too.

By DaMan on August 26, 2014

112 found this helpful


Excellent Product!

The following review is for 1TRUCK12, which is a part of the bundle you are viewing.

This box is very well built, great size, and is completely air tight. I've never had a box that was cotton lined and let me tell you it makes a difference. Great product I would highly recomend!

By Colbey on February 9, 2014

111 found this helpful


A Super super happy man!!!

The following review is for 1TRUCK12, which is a part of the bundle you are viewing.

I bought this Single 12" Subwoofer Angled Truck or Hatchback Box Enclosure a few days ago. So I cant explain how much happy I'm listening my music with this box, I'm an immigrant from Colombia who like to listen music such as Salsa, Reggueton, Merengue a real Latin guy. The sound is something so crazy (Perfect Sound - Space) in my car, Now I'm able to move all the toys of my son in my 2010 Toyota Matrix. If you want to have a good space & sound this is the box for you. Don't be scary for the size of this box. ;) I'm a happy Colombian.

By Harol Gomez on September 22, 2014

111 found this helpful


Nice Box

The following review is for 1TRUCK12, which is a part of the bundle you are viewing.

I purchased this box to put a Hifonics HFX12D4 in. The box is well made and falls within specs for the sub. The carpeting, cutout, poly fill and terminals are high quality. I added about 5 oz of polyfill to make the sub think the box is bigger. The box also has a small footprint and fits easily in the trunk of my Yukon. This combo is matches up well and is highly recommended. Plus, the pairing offers a great value if you want strong bass on a budget. Sonic did a great job with the shipping :)

By Ryan on February 10, 2014

110 found this helpful


speakers box review

The following review is for 1TRUCK12, which is a part of the bundle you are viewing.

Great box. Good waight,shape and easy to install a speaker to. Looks great in black. Recommended for any impact car or truck. Sturdy box no vibration.

By thumper on November 17, 2014

103 found this helpful


Good Product for the Price

The following review is for 1TRUCK12, which is a part of the bundle you are viewing.

Good construction but it really flexes from my Rockford P3 shallows so I had to reinforce it with resin and fiberglass

By john on March 11, 2015

94 found this helpful


Works great.

The following review is for 1TRUCK12, which is a part of the bundle you are viewing.

I bought this speaker box for a mustang but I ended up with it in my extended cab f150. I raised the rear seat up 2 inches and put in a alpine sub. This box hits hard and it is sturdy. It also looks nice in my truck.

By Nard on April 20, 2015

82 found this helpful




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2) KICKER 43C124 12" 600W Subs + GMC Chevy 07-13 Crew Enclosure + Amp + Amp Kit

300W Peak (150W RMS) 12" Comp Series Single 4 ohm Subwoofer Package

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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
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  • 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.