Peavey Gatekeeper Intelligent Gating Unit provides noise gate capability to your stage setup, offering quieting control of noisy guitar amplifiers and other high-noise floor sources. Each channel features adjustable gate threshold and release time, allowing you to customize the gating action for different instruments or signals. The unit also includes a smart gate function on channel 5, which automatically opens the gate when the other four gates are not active, enabling conversational announcements to be made without adjusting the thresholds.