Rockford Fosgate Prime R2-300X4 4-Channel Amplifier

The Rockford Fosgate Prime R2-300X4 is a 4-channel Class-D amplifier engineered for car enthusiasts who want reliable, scalable power from a compact unit that fits both factory and aftermarket systems.

• Total Power: 300 Watts (sum of rated power). In real terms this means four channels can deliver 50 W RMS each at 4 Ω or 75 W RMS each at 2 Ω, with two channels capable of higher bridged output for a dedicated sub or two-channel boost as needed.
• Bridged/Mono Dynamic Power: 70 Watts x 4 @ 4Ω; 115 Watts x 4 @ 2Ω; 230 Watts x 2 @ 4Ω. Bridging allows you to combine channels for increased single-channel output when you need more bass or a dedicated sub amp.
• Crossovers: Fully adjustable 12 dB/octave Butterworth high-pass and low-pass on both front and rear channels (50 Hz to 250 Hz). All-Pass option available. This lets you tailor each channel pair to optimize stage width and tonal balance.
• Inputs & Outputs: 2/4 Channel Input switch with Front Low-Level (4 RCA) and Front High-Level (4-Pin Molex) plus Rear Low-Level (4 RCA) and Rear High-Level (4-Pin Molex); 2-channel Pass-Thru outputs for easy daisy-chaining. Front/rear inputs support factory or aftermarket radios.
• Protection & Indicators: Short circuit and over-current protection; POWER (Blue) and PROTECT (Red) indicators; C.L.E.A.N. setup and multiple CLEAN indicators for clean signal paths.
• Physical & Electrical: Convection heatsink cooling; 9–16 VDC operation; recommended fuse 60 A (not included); 4 AWG power input and 8 AWG speaker output blocks; Dimensions: 1.9" x 6.8" x 10.1".
• Compliance & Warranty: CEA-2006 compliant, CE compliant, and 1-year warranty.

Benefits: Ideal for a multi-speaker front stage with rear fill, or a 2-channel bridge to a sub, while keeping noise, impedance, and thermal management under control. The R2-300X4’s selectable inputs, full-range Class-D efficiency, and targeted crossovers simplify tuning in factory-match installs or full aftermarket builds, delivering clear, controlled power where you need it most.