Rockford Fosgate Prime R2S Series 12" Shallow Mount Subwoofer
Key features
- Subwoofer size: 12.0 inches
- RMS power per subwoofer: 250 W
- Voice-coil options: S2, S4
- Mounting depth: 3.60 inches
- Cutout diameter: 11.22 inches
- Overall driver diameter: 12.97 inches
Rockford Fosgate Prime R2S Series 12" Shallow Mount Subwoofer - Single 2 Ohm is backordered and will ship as soon as it is back in stock.
Rockford Fosgate Prime R2S Series 12" Shallow Mount Subwoofer - Single 2 Ohm is backordered and will ship as soon as it is back in stock.
Description
Description
Product Overview
Add 12-inch low-frequency bass where mounting depth is limited with the Rockford Fosgate Prime R2S Series shallow-mount subwoofer. Its 3.602-inch mounting depth, dual voice coils, and sealed-enclosure focus suit installations where space is at a premium.
The mica-injected polypropylene cone and shallow motor assembly bring specific design choices to a subwoofer intended for compact car-audio installations.
Key Features & Benefits
- Shallow mounting depth: The 3.602-inch depth helps with planning installations in tight spaces.
- Enclosure options: Use the listed 0.9 cu ft sealed volume or 1.79 cu ft vented volume when designing a box.
- Dual voice coils: Choose between Dual 2-Ohm and Dual 4-Ohm configurations to match your amplifier setup.
- Cooling design: Integrated spider venting helps keep the motor cool during demanding bass playback.
- Installation connections: Dual 12 AWG compression terminals provide connection points for speaker wire.
Technical Specifications
| Product | Rockford Fosgate Prime R2S Series 12" shallow-mount subwoofer |
|---|---|
| Driver size | 12" |
| Mounting depth | 3.602 in (91 mm) |
| Cutout diameter | 11.25 in (285 mm) |
| Enclosure type and volume | Optimized for sealed enclosures; sealed: 0.9 cu ft (25.4 L); vented option: 1.79 cu ft (50.6 L) |
| Cone material | Mica-injected polypropylene |
| Basket | StampCast basket with integrated spider venting |
| Motor and assembly | Shallow motor assembly; integrated PVC trim ring; anodized aluminum voice coil former |
| Voice coils | Dual voice coil; 2" (50 mm) |
| Nominal impedance options | Dual 2-Ohm (two 2-Ω coils); Dual 4-Ohm (two 4-Ω coils) |
| Terminals | Dual 12 AWG compression terminals |
| Power handling | 250 Watts RMS / 500 Watts max |
| Sd | 534.8 cm² (0.0830 ft²) |
| Vas | 65.4 L |
| Xmax | 10 mm |
| Fs | ~29.7–30.3 Hz |
| Qts | ~0.65–0.66 |
| Qes | ~0.71–0.72 |
| Qms | ~7.00–9.00 |
| Re | ~3.80–6.80 Ω |
| Le | ~4.2 mH |
| Displacement | 0.039 cu ft (1.1 L) |
| Magnet weight | 51 oz (1.45 kg) |
| Shipping weight | 12.013 lbs (5.44 kg) |
Why Choose This Product?
The Prime R2S combines a 12-inch driver with a shallow motor assembly for applications where enclosure depth is a key consideration. Its dual voice coils offer two nominal impedance configurations, while the stated sealed-box volume gives you a specific starting point for enclosure planning.
The cone, basket, and voice coil assembly details help distinguish this model when comparing shallow-mount subwoofers for a compact car-audio build.
Installation & Compatibility Notes
Check your available mounting depth against 3.602 inches and confirm that the required 11.25-inch cutout fits your installation location. Allow for the subwoofer’s listed 0.039 cu ft displacement when planning enclosure volume.
Choose the Dual 2-Ohm or Dual 4-Ohm version to suit your amplifier’s supported load. Confirm the enclosure volume and connection requirements for your intended setup before installation.
Frequently Asked Questions
What enclosure volume is listed for the R2S?
The sealed enclosure volume is 0.9 cu ft (25.4 L). A vented option of 1.79 cu ft (50.6 L) is also listed.
What impedance options are available?
The subwoofer is listed in Dual 2-Ohm and Dual 4-Ohm configurations, with two coils in each configuration.
How much space does it need?
Its mounting depth is 3.602 inches (91 mm), and its cutout diameter is 11.25 inches (285 mm). Check both measurements against your installation location.
What power handling is listed?
The rating is 250 Watts RMS / 500 Watts max. Match the selected coil configuration to an amplifier that supports the intended load.
Explore More
Shop Rockford Fosgate products at 12 Volt Outlet, and explore the Rockford Fosgate brand profile to learn more about the brand.



