Morley HE 2 - 2 Channel Stereo Hum EliminatorEffective Hum Removal Ground loops and unbalanced signals create noise in recording mixers, keyboards, guitars, power amps, live sound, and DJ systems. No one is immune to hum, no matter how good your rig is, so when hum occurs, you need the right tool to quickly and easily get rid of it. The Morley Hum Eliminator does away with system noise and ground loops quickly and easily. Custom transformers isolate circuits, keeping grounds intact while