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Rockford Fosgate R2-500X4 Prime 500 Watt 4-Channel Amplifier

Brand: Rockford Fosgate
Model Number: R2-500X4
UPC: 780687355838
Rockford Fosgate
Model Number: R2-500X4
UPC: 780687355838

Rockford Fosgate R2-500X4 Prime 500 Watt 4-Channel Amplifier

  • Balanced Differential Inputs with RCA Pass Through Outputs
  • High Level Input Capable
  • 2/4 Channel Input Selection Switch
  • Front and Rear Variable Input Gain adjustment level
  • Top Mounted Control Panel

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Product Description

Features & Specifications



Rockford Fosgate R2-500X4 Prime 500 Watt 4-Channel Amplifier

Primed for Performance, the Rockford Fosgate R2-500X4 is a 500 watt, full-range Class-D amplifier capable of operating at 4Ω or 2Ω stereo and 4Ω bridged/mono. This amplifier is extremely efficient because of its Class-D technology which reduces demand on the vehicles electrical system. The amp also features C.L.E.A.N. circuitry to help you adjust your gain settings, a P.O.W.E.R. supply that generates more power as voltage increases.

The Rockford Fosgate R2-500X4 was developed for car audio fanatics that want a reliable amplifier – with all the power and performance you’ve come to expect from Rockford Fosgate – at an economical price. Rockford Fosgate amplifiers are renowned world-wide for being “under rated,” easily surpassing all specifications, and most importantly, generating more power than their ratings. These 3rd generation of Prime Series amplifiers are refined with the latest Rockford Fosgate technology for easy setup and configuration, making them perfect for use with factory audio or custom aftermarket systems.

Give your speakers the power they deserve

Rockford Fosgate 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.

Available Wiring Diagrams

Please consult your amplifier owner’s manual for lowest recommended impedance.

Brand Rockford Fosgate   Model Rockford Fosgate R2-500X4
Product: Rockford Fosgate R2-500X4 Prime 500 Watt 4-Channel Amplifier

RMS Power Output (Watts x Channels): 75 x 4
Power at 2 Ohms (Watts x Channels): 125 x 4
Bridged Power (Watts x Channels): 250 x 2
Minimum Impedance Bridged: 4
Minimum Impedance Unbridged: 2
Minimum Impedance: 2
Best Frequency Response: 20-20k Hz
THD at Rated RMS Power: 1%
Signal to Noise Ratio: 80 dB
Input Voltage: 14.4v
Amplifier Class: D
Low-Pass Crossover Frequency: 50-250 Hz
Low-Pass Slope (dB/octave): 12 dB/octave
High-Pass Crossover Frequency: 50-250 Hz
High-Pass Slope (dB/octave): 12 dB/octave
Bass Boost: No
Fan Cooled: No
Fuse Rating: 80
Speaker Level Inputs: Yes
Preamp Outputs: 2
Width (inches): 10-1/16
Height (inches): 2
Depth (inches): 7-3/4

What's in the box

Rockford Fosgate R2-500X4 owner's manual
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

Mobile Amplifier Channels

4 Channel

Mobile Amplifier Class

Class D

Mobile Amplifier Features

High-Pass Filter, Low-Pass Filter, Pre Amp Outputs, Speaker Level Inputs

Mobile Amplifier Fuse Rating


Mobile Amplifier RMS

351 to 750 watts

Mobile Min Impedance


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Rockford Fosgate R2-500X4


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