Memphis Audio PRX800.5V2 Power Reference 5-Channel Car Amplifier – 800W Max Compact Amplifier

Take your entire car audio system to the next level with the Memphis Audio PRX800.5V2 Power Reference 5-Channel Amplifier. Engineered to deliver exceptional performance in a significantly smaller chassis, the redesigned Power Reference Series offers the same legendary Memphis power while reducing the amplifier's footprint by up to 43% on select models. Whether you're powering four speakers and a subwoofer or building a complete aftermarket audio system, the PRX800.5V2 provides clean, efficient power and flexible tuning options for outstanding sound quality.

The PRX800.5V2 combines premium performance with a modern appearance featuring a blue LED-accented acrylic top panel and undermount LED ground lighting that give your installation a custom, high-end look. Hidden beneath the removable top cover are convenient top-mounted controls, allowing easy access for tuning even after the amplifier has been installed.

Built on an efficient extruded aluminum heatsink, this amplifier is designed for long-lasting reliability while offering advanced audio tuning features including variable crossovers, adjustable bass EQ, subsonic filtering, and selectable amplifier turn-on modes. From factory integration to custom competition-quality systems, the PRX800.5V2 delivers the power, flexibility, and reliability expected from Memphis Audio.

Key Features

• Compact 5-channel full-range amplifier
• Redesigned chassis with up to 43% smaller footprint than previous Power Reference models
• Blue LED illuminated acrylic top panel
• Blue LED underbody accent lighting for a custom appearance
• Extruded aluminum heatsink for excellent thermal performance
• Hidden top-mounted control panel for easy tuning
• 12dB/octave Butterworth high-pass and low-pass crossovers
• Variable crossover controls
• Variable bass EQ boost (0–12dB)
• Variable subsonic filter for improved subwoofer protection
• Selectable amplifier turn-on modes for factory or aftermarket integration
• Ideal for powering four full-range speakers plus one subwoofer

Power Specifications

• RMS Power @ 4 Ohms: 75W x 4 + 250W x 1
• RMS Power @ 2 Ohms: 100W x 4 + 400W x 1
• Bridged Power @ 4 Ohms: 200W x 2 + 400W x 1 @ 2 Ohms
• Total Harmonic Distortion (THD): <1%
• Frequency Response: 10Hz – 21kHz

Specifications

• Model: PRX800.5V2
• Amplifier Channels: 5
• Dimensions: 10.1" x 5.7" x 2.16"
• Recommended Amplifier Wiring Kit: 4 Gauge (4GKIT)

Complete System Power in One Compact Amplifier

The Memphis Audio PRX800.5V2 is the ideal solution for enthusiasts who want to power an entire sound system from a single amplifier without sacrificing valuable installation space. Combining compact dimensions, premium construction, advanced tuning controls, and the legendary reliability of the Power Reference Series, this amplifier delivers powerful, clean audio performance with the flexibility to fit almost any vehicle.

PR V2 Amplifier Instruction Manual

PR Amplifier Product Sheet