Memphis Audio PRX400.1V2 Power Reference Monoblock Amplifier – 600W RMS @ 1 Ohm Compact Class D Amp

Deliver powerful, accurate bass with the Memphis Audio PRX400.1V2 Power Reference Monoblock Amplifier. Engineered for subwoofer applications, this compact amplifier combines impressive output, advanced tuning capabilities, and a significantly smaller footprint than previous Power Reference models. Whether you're upgrading an existing system or building a custom installation, the PRX400.1V2 provides reliable power and premium performance in a space-saving design.

The redesigned Power Reference Series features a blue LED-accented acrylic top panel that conceals easy-to-access top-mounted controls, allowing for quick system adjustments even after installation. Blue LED underbody lighting adds a custom appearance, while the durable extruded aluminum heatsink efficiently dissipates heat to ensure dependable performance during extended listening sessions.

Fine-tune your bass with advanced audio controls including an 18dB/octave Butterworth crossover, variable low-pass crossover, adjustable bass EQ, and a variable subsonic filter for improved subwoofer protection. Selectable amplifier turn-on modes make the PRX400.1V2 compatible with both factory and aftermarket audio systems.

Key Features

• Compact Class D monoblock amplifier
• Space-saving chassis with up to 43% smaller footprint than previous Power Reference models
• Blue LED illuminated acrylic top cover
• Blue LED underbody accent lighting
• Extruded aluminum heatsink for superior cooling
• Hidden top-mounted control panel for clean installation and easy tuning
• 18dB/octave Butterworth low-pass crossover
• Variable crossover controls
• Variable Bass EQ Boost (0–12dB)
• Variable subsonic filter protects subwoofers from damaging low frequencies
• Selectable amplifier turn-on modes for factory or aftermarket integration
• Ideal for powering a single subwoofer or high-performance bass system

Power Specifications

• 230 Watts RMS x 1 @ 4 Ohms
• 400 Watts RMS x 1 @ 2 Ohms
• 600 Watts RMS x 1 @ 1 Ohm
• Total Harmonic Distortion (THD): <1%
• Frequency Response: 10Hz – 250Hz

Specifications

• Model: PRX400.1V2
• Amplifier Type: Monoblock Class D
• Stable Impedance: 1 Ohm
• Dimensions: 6.6" x 5.7" x 2.16"
• Recommended Amplifier Wiring Kit: 8 Gauge (8GKIT)

Compact Size. Serious Bass.

The Memphis Audio PRX400.1V2 is designed for enthusiasts who need serious subwoofer power without sacrificing installation space. Its compact chassis, premium construction, advanced tuning features, and dependable Power Reference performance make it an outstanding choice for trucks, cars, SUVs, and custom audio systems where powerful bass and installation flexibility are equally important.

PR V2 Amplifier Instruction Manual

PR Amplifier Product Sheet