Rockford Fosgate Prime R2-300X4 4-Channel Amplifier
Key features
- Amplifier channels: 4
- RMS per channel at 4 ohms: 50 W
- RMS per channel at 2 ohms: 75 W
- Frequency response: 20 Hz–20 kHz
- Input sensitivity: 150 mV–4 V low-level; 450 mV–12 V high-level
- Crossover: variable 50–250 Hz high-pass/low-pass, 12 dB/octave
Rockford Fosgate Prime R2-300X4 4-Channel Amplifier is backordered and will ship as soon as it is back in stock.
Rockford Fosgate Prime R2-300X4 4-Channel Amplifier is backordered and will ship as soon as it is back in stock.
Description
Description
Product Overview
Add four-channel power to a car audio system with the Rockford Fosgate Prime R2-300X4 4-channel Class-D amplifier. It delivers 50 W RMS per channel at 4 Ω or 75 W RMS per channel at 2 Ω, with adjustable crossovers to help tailor the front and rear channels.
Key Features & Benefits
- Four-channel output: Power front and rear speakers, or bridge channels for higher output.
- Adjustable crossovers: Set front and rear high-pass or low-pass filters from 50 Hz to 250 Hz.
- Flexible inputs: Connect through low-level RCA or high-level Molex inputs for factory or aftermarket radios.
- Pass-through outputs: Send a two-channel signal onward when adding another amplifier.
- Signal setup indicators: C.L.E.A.N. setup and multiple CLEAN indicators help monitor signal setup.
- Convection heatsink cooling: The amplifier uses convection cooling without a fan.
Technical Specifications
| Specification | Detail |
|---|---|
| Brand | Rockford Fosgate |
| Model | Prime R2-300X4 |
| Amplifier type | 4-channel Class-D |
| Total power | 300 Watts (sum of rated power) |
| Rated power | 50 W RMS x 4 at 4 Ω; 75 W RMS x 4 at 2 Ω |
| Bridged/Mono Dynamic Power | 70 Watts x 4 @ 4Ω; 115 Watts x 4 @ 2Ω; 230 Watts x 2 @ 4Ω |
| Crossovers | Fully adjustable 12 dB/octave Butterworth high-pass and low-pass on front and rear channels; 50 Hz to 250 Hz; All-Pass option |
| Input selection | 2/4 Channel Input switch |
| Front inputs | Front Low-Level (4 RCA); Front High-Level (4-Pin Molex) |
| Rear inputs | Rear Low-Level (4 RCA); Rear High-Level (4-Pin Molex) |
| Outputs | 2-channel Pass-Thru outputs |
| Protection | Short circuit and over-current protection |
| Indicators | POWER (Blue), PROTECT (Red), C.L.E.A.N. setup and multiple CLEAN indicators |
| Cooling | Convection heatsink cooling |
| Operating voltage | 9–16 VDC |
| Recommended fuse | 60 A (not included) |
| Power input block | 4 AWG |
| Speaker output blocks | 8 AWG |
| Dimensions | 1.9" x 6.8" x 10.1" |
| Compliance | CEA-2006 compliant; CE compliant |
| Warranty | 1-year warranty |
Why Choose This Product?
The R2-300X4 can support a multi-speaker front stage with rear fill, or a bridged setup for two channels of higher output. Its separate front and rear crossover controls give you room to shape each channel pair for your system.
Selectable low- and high-level inputs offer connection options for factory-match installs and aftermarket radios. The compact 1.9" x 6.8" x 10.1" chassis also gives you a clear size reference when planning a mounting location.
Installation & Compatibility Notes
Check the available mounting space against the amplifier’s dimensions before installation. Confirm your radio’s output type and the intended speaker impedance and channel configuration before connecting the system.
Plan for 9–16 VDC operation, a recommended 60 A fuse (not included), 4 AWG power input, and 8 AWG speaker output connections. Follow the product’s installation requirements when selecting wiring and fuse placement.
Frequently Asked Questions
What is the rated output per channel?
The R2-300X4 is rated at 50 W RMS per channel at 4 Ω or 75 W RMS per channel at 2 Ω.
What are the bridged dynamic power ratings?
The listed ratings are 70 Watts x 4 @ 4Ω, 115 Watts x 4 @ 2Ω, and 230 Watts x 2 @ 4Ω.
Can I connect a factory radio?
Front and rear high-level 4-Pin Molex inputs support factory-radio connections. Low-level RCA inputs are also available for compatible aftermarket systems.
Can I adjust the crossover settings?
Yes. The front and rear channels have adjustable 12 dB/octave Butterworth high-pass and low-pass crossovers from 50 Hz to 250 Hz, plus an All-Pass option.
Is the recommended fuse included?
No. The recommended fuse is 60 A, and it is not included.
Explore More
Shop Rockford Fosgate car audio at 12 Volt Outlet, and explore the Rockford Fosgate brand profile to learn more about the brand.
