Rockford Fosgate R2SD2-12
$150.00
Prime R2 Series 12″ shallow subwoofer with dual 2-ohm voice coils
Deep bass in a shallow package. Rockford Fosgate’s Prime R2SD2-12 shallow-mount subwoofer delivers powerful low-frequency performance in a slim profile design perfect for space-constrained vehicles. With a mounting depth of only 3-5/8″, this subwoofer can fit in extremely compact enclosures while still handling up to 250 watts RMS of power.
The R2SD2-12 features a special elevated motor structure that allows for the shallow mounting depth without compromising on performance. Its 12-inch mica-injected polypropylene cone works with a high-density poly-foam surround to produce fat, deep bass notes that will enhance your listening experience.
Product Highlights
- Size: 12-inch shallow-mount subwoofer
- Voice Coils: Dual 2-ohm design (configurable as 1 or 4 ohms)
- Power Handling:
- 100-250 watts RMS
- 500 watts peak power
- Frequency Response: 43-250 Hz (29-250 Hz in specs)
- Mounting Depth: Only 3-5/8 inches
Key Features
- Shallow-Mount Design: Special elevated motor structure for compact installation
- Premium Construction:
- Mica-injected polypropylene cone
- High-density poly-foam surround
- Stamped solid-steel frame with cooling vents
- Reliable Design: Tinsel leads stitched directly into the cone for durability
- Flexible Installation: Optimized for both sealed and ported enclosures
- Thermal Management: Venting system similar to standard-mount subs keeps this sub running cool
Package Contents
- 12″ Shallow-mount dual 2-ohm voice coil subwoofer
- Eight 1-1/8″ self-tapping screws
- 4mm Allen bit
- Installation and operation manual (English/French/Spanish/German)
Performance Specifications
- Power Handling: 100-250 watts RMS (500 watts peak)
- Impedance Options: 1 or 4 ohms (dual 2-ohm voice coils)
- Sensitivity: 85 dB at 1 watt
- Frequency Response: 29-250 Hz
- Voice Coil Configuration: Dual voice coil
- Xmax (one-way linear excursion): 10 mm
- Free-Air Compatible: No
- Thiele/Small Parameters:
- Vas: 65.4 liters
- Fs: 29.7 Hz
- Qts: 0.66
Physical Specifications
- Frame Width: 12.967 inches
- Frame Length: 12.967 inches
- Cutout Diameter: 11-1/8 inches
- Mounting Depth: 3-5/8 inches (top-mount)
- Construction Materials:
- Cone: Mica-injected polypropylene
- Surround: Poly-foam
- Grille: Not included
Wiring and Connections
- Voice Coil Configuration: Dual 2-ohm voice coils
- 1-ohm load when wired in parallel
- 4-ohm load when wired in series
- Terminals: Spring post compression terminals with attached 16-gauge stitched tinsel lead wires
- Compatibility: Accepts pin connectors, single banana plugs, and bare wire up to 12-gauge
Enclosure Recommendations
- Sealed Enclosure:
- Ideal Volume: 0.9 cubic feet
- Acceptable Range: 0.74 to 1.27 cubic feet
- Performance Characteristics: More control over the woofer, handles high power, accurate sonic reproduction, suitable for all music types
- Ported Enclosure:
- Recommended Volume: 1.79 cubic feet
- Port Specifications: 4″ diameter × 11.8″ long
- Tuning Frequency: 40 Hz
- Performance Characteristics: Better overall efficiency than sealed enclosures, more output from less power, reduced output below 35 Hz
Technical Features
- Shallow-Mount Design: Engineered with a smaller motor assembly to reduce overall depth
- Advanced Construction: Designed for performance in tight spaces without compromising sound quality
Applications
- Ideal for vehicles with limited depth for subwoofer installation:
- Compact cars
- Sports cars
- Trucks with limited space behind seats
- Shallow enclosures under seats or in tight spaces