Electro-Harmonix Hum Debugger Hum Eliminator Completely eliminates hum from any audio source It's not a suppressor or noise gate It's absolute silence Compact to take up little space on your pedalboard Listen &ndash do you hear that? That sound coming from your amp vaguely like a swarm of African killer bees coming to chase away your audience? The Electro-Harmonix Hum Debugger Hum Eliminator Pedal completely and totally eliminates hum from any audio source