Peavey's CS4000 Professional Power Amplifier is a 2RU robust device with DDT (Distortion Detection Technique) circuitry that ensures trouble-free operation at loads as low as 2, protects drivers, and maintains sonic integrity even under challenging loads and power circumstances. It has tunnel-cooled heat sinks and dual-speed DC fans, lowering the overall operating temperature and extending the life of the output transistors. The Peavey CS4000 amplifier can deliver up to 4000W of power.