4-Channel Amplifier

The Rockford Fosgate R2-500X4 is a robust 4-channel amplifier designed to enhance your vehicle's audio system. Delivering 500 watts of RMS power, it is capable of operating at 4Ω or 2Ω stereo, and 4Ω bridged/mono configurations. This amplifier utilizes a full-range Class D topology, renowned for its high efficiency which reduces the demand on your vehicle's electrical system. It features Rockford Fosgate's patented C.L.E.A.N. circuitry, complete with in/out clip LEDs, to assist in accurate gain setup and optimize audio performance. The unit also boasts MEHSA 4 (Maximum Efficiency Heat Sink Application) to reduce MOSFET temperatures and prolong device lifespan. For precise sound tuning, the R2-500X4 is equipped with fully adjustable 12 dB/octave high and low-pass Butterworth crossovers. It offers a 2/4 channel input selection switch and front/rear variable input gain adjustment. Balanced differential inputs are included to minimize noise, ensuring cleaner sound reproduction. This amplifier is compatible with both factory and aftermarket audio systems thanks to its high-level input capability and an auto-turn-on circuit. For simplified setup, it features a top-mounted control panel and an auto-sense bypass switch for vehicles with Retained Accessory Power (RAP). Key specifications include power output of 75W x 4 @ 4Ω, 125W x 4 @ 2Ω, and 250W x 2 @ 4Ω bridged. The frequency response is 20Hz – 20kHz, and the signal-to-noise ratio is greater than 80dB. The compact dimensions are 1.9" H x 6.8" W x 10.1" L. It requires a 4 AWG power wire gauge and an 8 AWG speaker wire gauge, connecting via compression terminal blocks. The operating voltage is 9-16 VDC, and a recommended fuse of 80A is specified.