Rockford Fosgate Prime 500W 4-Channel Full Range Class D Amplifier — Big Jeff Online Inc
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Rockford Fosgate Prime 500W 4-Channel Full Range Class D Amplifier R2-500X4

SKU RF-R2-500X4
Save 20% Save 20%
Original price $412.49
Original price $412.49 - Original price $412.49
Original price $412.49
Current price $329.99
$329.99 - $329.99
Current price $329.99
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  • Balanced Differential Inputs with RCA Pass Through Outputs
  • Auto-Sense bypass switch for vehicles with RAP (Retained Accessory Power)
  • 2/4 Channel Input Selection Switch
  • Fully Adjustable 12 dB/octave High and Low pass Butterworth Crossovers

Rockford Fosgate Prime 500W 4-Channel Full Range Class D Amplifier R2-500X4

This listing Includes:

  • (1) R2-500X4 4-Channel Amplifier

  • (2) 7" Speaker Input Harnesses

  • (1) 3mm Allen Hex Key

  • (4) 3/4" Screws

  • (4) Flat Washers

  • (1) Installation Guide

  • (1) Certificate of Performance

  • (1) Rockford Fosgate Contact Information

Primed for Performance, the R2-500X4 amplifier is a 500 watt, full-range class-D, capable of operating at 4 or 2 stereo, and 4 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, and integrated Punch EQ that corrects for acoustic deficiencies while delivering up to 3X the bass.

The Prime Series were 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. The latest generation of Prime Series amplifiers are also designed to be easy to setup and configure, making them perfect for use with factory audio or custom aftermarket systems.


  • High Level Input Capable

  • Features C.L.E.A.N. Set-up

  • Front and Rear Variable Input Gain adjustment level

  • Continuously Variable On Board Punch EQ

  • Top Mounted Control Panel

  • Short Circuit & Over Current Protection

  • CEA-2006 Compliant & CE Compliant

  • Cast aluminum heat sink

  • Full Range Class D

  • Rollback Protection

  • 1 Year Warranty


  • 4 Channels

  • Total Power: 500W

  • Rated Power:

  • 75W x 4 @ 4 Ohm

  • 125W x 4 @ 2 Ohm

  • 250W x 2 @ 4 Ohm Bridged / Mono

  • Dynamic Power:

  • 90W x 4 @ 4 Ohm

  • 160W x 4 @ 2 Ohm

  • 300W x 2 @ 4 Ohm Bridged / Mono

  • Bridgeable: Yes

  • Frequency Response: 20 Hz - 20 kHz

  • Input Sensitivity:

  • Low-Level: 150 mV - 4V

  • High-Level: 450 mV - 12V

  • Class D Circuit Topology Class

  • Signal Output:

  • Low-Level: 2 RCA (Pass-Thru active with RCA or hi-level input)

Crossover Controls:

  • Front High-Pass: 50 Hz - 250 Hz @ 12dB/Octave Butterworth

  • Front Low-Pass: 50 Hz - 250 Hz @ 12dB/Octave Butterworth

  • Rear High-Pass: 50 Hz - 250 Hz @ 12dB/Octave Butterworth

  • Rear Low-Pass: 50 Hz - 250 Hz @ 12dB/Octave Butterworth

  • All-Pass: Yes

  • Remote Controls: No

  • Power Wire Gauge: 4 AWG

  • Speaker Wire Gauge: 8 AWG

  • Cooling: Convection

  • Operating Voltage: 9-16VDC

  • Recommended Fuse: 80A (Not Included)

  • Max. Current Draw (13.8V Sinewave) 59A

Dimensions: (H x W x D)

  • 1.9" x 6.8" x 10.1"

Payment Information


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Customer Reviews

Based on 3 reviews
Edenic carcamo
Greet quality

Greet quality, sound amazing

Dylan Allison
Great sound quality and build quality

I bought this amplifier to replace a Pioneer 4x100 amplifier that had a HORRIBLE engine whine problem. Installed this amp and the problem is completely fixed. This amplifier also has a much better crossover then the Pioneer one did. Also extremely fast shipping, I'm so glad the seller decided to use Fedex instead of UPS. UPS is extremely unreliable and actually lost a $380 subwoofer I ordered.

Your getting the most for your money!!!!

This amplifier exceed all expectations in every department great sound Quality clarity and pushes more walks than expected I use this for my Harley Davidson Electra glide classic it’s a 2008 and it fits sound and snug beautiful looking sounding and preforming very nice can’t say anything other than this is a powerful amplifier with the sound you can expect from Rockford Fosgate!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Love this amp