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Rockford Fosgate R500X1D & R2D412 & Enclosure
Rockford Fosgate Prime R500X1D 500 Watt Class-D Mono Amplifier with a pair of R2D4-12 Prime R2 Series 12" subwoofer with dual 4-ohm voice coils in a dual sealed enclosure
Prime R500X1D
The Prime R500X1D is a 500 watt mono amplifier using efficient Class-D circuit topology. This amplifier is capable of running a 2-Ohm load and includes on-board Punch Bass and remote Punch Level Control.
- 12dB/octave Butterworth crossover
- RCA pass-thru outputs
- On-board Punch EQ with +18dB boost @ 45Hz.
- High level inputs
- Remote PLC (Punch Level Control)
- 0°/180° Phase Switch
- Real time output and power supply thermal sensing
- Cast aluminum heatsink
- 4 Gauge power/ground connectors
- MOSFET power supply
- Over current protection
- Short circuit protection
- Muted turn on
Rockford Fosgate R2D4-12
Prime R2 Series 12" subwoofer with dual 4-ohm voice coils
- 12" subwoofer with dual 4-ohm voice coils
- mica-injected polypropylene woofer cone with poly-foam surround
- stamped solid-steel frame
- power range: 50-250 watts RMS (500 watts peak power)
- frequency response: 43-250
- sensitivity: 89 dB
- top-mount depth: 5-1/8"
- sealed box volume: 1.02 cubic feet
- ported box volume: 1.79 cubic feet
| Size | 12 -inch |
| Impedance | 2 ohms or 8 ohms |
| Cone Material | Mica injected poly |
| Surround Material | Poly-foam |
| Ideal Sealed Box Volume (cubic feet) | 1.02 |
| Ideal Ported Box Volume (cubic feet) | 1.79 |
| Port diameter (inches) | 4 |
| Port length (inches) | 9.3 |
| Free-Air | No |
| Dual Voice Coil | Yes |
| Sensitivity | 87 dB at 1 watt |
| Frequency Response | 43 - 250 Hz |
| RMS Power Range (Watts) | 50-250 |
| Peak Power Handling (Watts) | 500 |
| Top Mount Depth (inches) | 5 1/4 |
| Bottom Mount Depth (inches) | N/A |
| Cutout Diameter or Length (inches) | 11 1/16 |
| Vas (liters) | 68.8 |
| Fs (Hz) | 35 |
| Qts | 0.6 |
| Xmax (millimeters) | 6 |
Features
Overview: The Rockford Fosgate Prime R2D4-12 is a 12-inch subwoofer with dual 4Ω voice coils. The sub features a StampCast steel frame, quick-release compression terminals, and a mica injected polypropylene cone. An anodized aluminum voice coil former and spider venting help keep the subwoofer cool.
Steel Basket: The R2D4-12 subwoofer features a StampCast steel basket for added rigidity.
Compression Terminals: The Prime R2D4-12 features spring post terminals which accommodate speaker wire up to 12 gauge.
CEA-2031 Compliant: Power handling on the Rockford Fosgate Prime R2D4-12 subwoofer conforms to CEA-2031 industry standards. This means the subwoofer has the capacity to handle power under continuous demand, not instantaneous power handling, that over time, can damage voice coils.
Enclosure Compatibility
Sealed Box: Rockford recommends a sealed enclosure with an optimum internal volume of 1.02 cubic feet (from 0.75 to 1.25 cubic feet is acceptable). Sealed enclosures provide the most control over a woofer, will handle a lot of power, and provide accurate sonic reproduction, making them suitable to all types of music.
Ported Box: Rockford recommends a ported enclosure with an internal volume of 1.79 cubic feet using one 4" diameter x 9.3" long port; this yields a tuning frequency of 45 Hz. Ported (or vented) enclosures typically provide better overall efficiency than sealed so they are suitable for use with smaller amplifiers, giving you more bass output from less power. However, this efficiency comes at the expense of very low frequency output (below 40Hz).
Rockford Fosgate Prime R500X1D 500 Watt Class-D Mono Amplifier with a pair of R2D4-12 Prime R2 Series 12" subwoofer with dual 4-ohm voice coils in a dual sealed enclosure
Prime R500X1D
The Prime R500X1D is a 500 watt mono amplifier using efficient Class-D circuit topology. This amplifier is capable of running a 2-Ohm load and includes on-board Punch Bass and remote Punch Level Control.
- 12dB/octave Butterworth crossover
- RCA pass-thru outputs
- On-board Punch EQ with +18dB boost @ 45Hz.
- High level inputs
- Remote PLC (Punch Level Control)
- 0°/180° Phase Switch
- Real time output and power supply thermal sensing
- Cast aluminum heatsink
- 4 Gauge power/ground connectors
- MOSFET power supply
- Over current protection
- Short circuit protection
- Muted turn on
Rockford Fosgate R2D4-12
Prime R2 Series 12" subwoofer with dual 4-ohm voice coils
- 12" subwoofer with dual 4-ohm voice coils
- mica-injected polypropylene woofer cone with poly-foam surround
- stamped solid-steel frame
- power range: 50-250 watts RMS (500 watts peak power)
- frequency response: 43-250
- sensitivity: 89 dB
- top-mount depth: 5-1/8"
- sealed box volume: 1.02 cubic feet
- ported box volume: 1.79 cubic feet
| Size | 12 -inch |
| Impedance | 2 ohms or 8 ohms |
| Cone Material | Mica injected poly |
| Surround Material | Poly-foam |
| Ideal Sealed Box Volume (cubic feet) | 1.02 |
| Ideal Ported Box Volume (cubic feet) | 1.79 |
| Port diameter (inches) | 4 |
| Port length (inches) | 9.3 |
| Free-Air | No |
| Dual Voice Coil | Yes |
| Sensitivity | 87 dB at 1 watt |
| Frequency Response | 43 - 250 Hz |
| RMS Power Range (Watts) | 50-250 |
| Peak Power Handling (Watts) | 500 |
| Top Mount Depth (inches) | 5 1/4 |
| Bottom Mount Depth (inches) | N/A |
| Cutout Diameter or Length (inches) | 11 1/16 |
| Vas (liters) | 68.8 |
| Fs (Hz) | 35 |
| Qts | 0.6 |
| Xmax (millimeters) | 6 |
Features
Overview: The Rockford Fosgate Prime R2D4-12 is a 12-inch subwoofer with dual 4Ω voice coils. The sub features a StampCast steel frame, quick-release compression terminals, and a mica injected polypropylene cone. An anodized aluminum voice coil former and spider venting help keep the subwoofer cool.
Steel Basket: The R2D4-12 subwoofer features a StampCast steel basket for added rigidity.
Compression Terminals: The Prime R2D4-12 features spring post terminals which accommodate speaker wire up to 12 gauge.
CEA-2031 Compliant: Power handling on the Rockford Fosgate Prime R2D4-12 subwoofer conforms to CEA-2031 industry standards. This means the subwoofer has the capacity to handle power under continuous demand, not instantaneous power handling, that over time, can damage voice coils.
Enclosure Compatibility
Sealed Box: Rockford recommends a sealed enclosure with an optimum internal volume of 1.02 cubic feet (from 0.75 to 1.25 cubic feet is acceptable). Sealed enclosures provide the most control over a woofer, will handle a lot of power, and provide accurate sonic reproduction, making them suitable to all types of music.
Ported Box: Rockford recommends a ported enclosure with an internal volume of 1.79 cubic feet using one 4" diameter x 9.3" long port; this yields a tuning frequency of 45 Hz. Ported (or vented) enclosures typically provide better overall efficiency than sealed so they are suitable for use with smaller amplifiers, giving you more bass output from less power. However, this efficiency comes at the expense of very low frequency output (below 40Hz).






