Give your speakers the power they deserve
Rockford Fosgate’s Prime Series R2-500X4 amplifier can power four speakers with 75 watts RMS each, so you’ll hear your music loud and clear over the noises of the wind and road. You could also use this amp in bridged, 2-channel mode to power a couple of subwoofers with 250 watts RMS each. High- and low-pass filters help you get maximum performance from the speakers in your vehicle.
Setting it up for optimum performance
Rockford Fosgate’s C.L.E.A.N. technology (Calibrated Level Eliminates Audible Noise) setup system ensures your music will sound as clean and powerful as possible. It’s a simple system to use — turn it up until the light shows red, then turn it down until the red light goes out. Speaker-level inputs let you hook this amp up to almost any system, even a factory stereo.
Product highlights:
- Featured in our article: Best 4-channel car amplifiers for 2025
- 4-channel car amplifier
- 75 watts RMS x 4 at 4 ohms
- 125 watts RMS x 4 at 2 ohms
- 250 watts RMS x 2 bridged output at 4 ohms (4-ohm stable in bridged mode)
- CTA-2006 compliant
- Class-D amplifier design
- variable high- and low-pass filters (50-250 Hz, 12 dB/octave) on front and rear channels
More Info:
- C.L.E.A.N. gain setup system includes clip lights
- auto remote turn-on
- preamp and speaker-level inputs
- preamp outputs
- wiring, fuse, and hardware not included with amplifier
- 4-gauge power and ground leads and an 80-amp fuse recommended
- dimensions: 10-1/16″W x 2″H x 7.75″D
What’s in the box:
- 4-Channel amplifier
- Two 7″ Speaker input harnesses
- 3mm Allen Hex key
- Four 3/4″ Screws
- 4 Flat washers
- Installation and Operation instructions (English/ French/ Spanish/ German/ Italian)
- Certificate of Performance
- Rockford Fosgate contact information
