Rockford Fosgate Prime R2-500X4 4-Channel Amplifier

The Rockford Fosgate Prime R2-500x4 is a 4-channel, Class-D amplifier built for car audio enthusiasts who demand reliable, high-efficiency power in factory or aftermarket systems. This 3rd generation Prime Series unit delivers 500W total with easy setup and refined configuration for straightforward integration.

• 4-Channel Class-D design: Efficient amplification that stays cooler in-vehicle environments and fits into tighter installs without sacrificing output.
• Total Power: 500 Watts (sum of rated power) across all channels, enabling a multi-speaker front/rear setup with headroom for dynamic musical transients.
• RMS Power per Channel (4Ω / 2Ω): 75W × 4 @ 4Ω; 125W × 4 @ 2Ω. This gives you flexibility to drive four 4Ω speakers or push more current into 2Ω loads for tighter, louder bass and midrange performance.
• Bridged/Mono Power: 90 Watts × 4 @ 4Ω; 160 Watts × 4 @ 2Ω; 300 Watts × 2 @ 4Ω. Bridging enables higher-power two-channel configurations when you need more output per speaker pair.
• Frequency Response: 20 Hz – 20 kHz, ensuring a full-range signal path capable of reproducing music from deep bass to high treble with fidelity.
• Crossovers: Fully adjustable 12 dB/octave Butterworth crossovers with Front High-Pass (50–250 Hz), Front Low-Pass (50–250 Hz), Rear High-Pass (50–250 Hz), Rear Low-Pass (50–250 Hz), and All-Pass. This lets you tailor each channel’s tonal range precisely to your speaker placement.
• Inputs & Signal Path: 2/4 Input selection; Front Low-Level (4 RCA) and Front High-Level (4-Pin Molex); Rear Low-Level (4 RCA) and Rear High-Level (4-Pin Molex); Balanced differential inputs with RCA pass-through.
• Protection & Indicators: Short Circuit & Over Current Protection; Rollback Protection; POWER (Blue) / PROTECT (Red) indicators; C.L.E.A.N. IN/OUT.
• Physical & Build: Cast aluminum heat sink with convection cooling; Top-mounted control panel; 9–16 VDC operation; 4 AWG power input; 8 AWG speaker output; Dimensions 1.9" × 6.8" × 10.1".
• Compliance & Warranty: CTA-2006 Compliant; CE Compliant; 1 Year Warranty.

Benefits: The R2-500x4 is well-suited to four-speaker front/rear installations or a two-speaker front with rear fill, offering flexible input options for factory radios or aftermarket head units. Its broad 20 Hz–20 kHz bandwidth and programmable crossovers let you dial in clean, dynamic sound while reducing unwanted bass spill to midrange. Bridging provides a straightforward path to higher power for a two-channel setup, and the compact, heat-dissipating chassis suits installations with limited space while maintaining reliable performance under musical demand.