The Power Acoustik RZ42000D Razor Series is a compact 4-channel Class D amplifier designed for space-conscious automotive installations. This amplifier delivers 2000 watts of dynamic power while maintaining an ultra-slim chassis, making it ideal for mounting behind panels or under seats. Power Output: 250W RMS x 4 channels at 2 ohms 160W RMS x 4 channels at 4 ohms 500 watts x 2 channels bridged at 4 ohms 2000 watts maximum peak power Key Features: Compact 4.75" wide chassis for flexible installation options MOSFET power supply equipped with audiophile-grade IR transistors Military-grade SMT PCB for dynamic performance and reliability Switchable crossover (HP/Full/LP) with fixed 80Hz crossover point at 12dB 200mV-6V low-level RCA inputs with high-level input and signal sense auto turn-on 3-way protection circuitry (thermal, overload, and speaker short protection) Dash-mount remote gain control capability LED power and protection indicators The RZ42000D features both high-level and low-level inputs for versatile connectivity, making it compatible with both aftermarket and factory head units. Variable 12dB high pass and low pass crossovers offer precise control over frequency output, allowing you to fine-tune your audio system. The heavy-duty aluminum alloy heat sink ensures reliable operation even during extended high-volume listening sessions.