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

Powerful, efficient amplification in a compact package

Meet the Rockford Fosgate R2-500X4 Prime 500-Watt 4-Channel Amplifier, a compact Class D unit designed to deliver clean, efficient power to your car audio system without overloading the electrical system. Built to Rockford Fosgate standards, this amp aims to provide reliable performance with thoughtful features that support real world setups and flexible configurations.

Compact size, flexible power

With dimensions of 1.9 inches tall by 6.8 inches wide by 10.1 inches deep, the R2-500X4 fits snugly under seats or behind panels while still delivering meaningful impulse to your speakers. The amplifier offers multiple power options: 75W x 4 at 4Ω, 155W x 4 at 2Ω, and 250W x 2 when bridged. This versatility makes it suitable for driving front and rear speakers, or bridging two channels to power a compact sub in tighter installations.

Smart features built for sound and reliability

• C.L.E.A.N. circuitry helps you dial in clean gain and reduces the guesswork during setup
• P.O.W.E.R. Supply generates more power as the vehicle voltage rises, helping maintain headroom
• Integrated Punch EQ enhances bass presence while preserving overall signal integrity
• Fully adjustable 12 dB per octave high pass and low pass Butterworth crossovers
• Balanced differential inputs with RCA pass-through outputs for flexible connections
• High level input capable with a defeat able auto turn on circuit for easy integration
• Top mounted controls for straightforward adjustments during installation

Versatile system options

• Use a 4-channel setup to power front and rear speakers with consistent performance
• Bridge two channels to drive a compact sub or mono setup when needed

Quality you can rely on

Rockford Fosgate builds are known for durability and consistent performance. The R2-500X4 comes with a solid one-year warranty, giving you a straightforward path if you ever need service or support. While results vary with your choice of speakers and source material, the amplifier is designed to deliver clean, controlled power that respects the rest of your audio chain.

What you may experience

With proper setup, you may notice tighter bass, clearer midrange, and improved headroom during dynamic passages. The design emphasizes efficiency and reliability, offering a practical upgrade path for those seeking stronger audio without adding stress to the vehicle electrical system. This description highlights possibilities rather than guarantees, focusing on how the R2-500X4 can fit varied needs and spaces.