Removes AC Hum Noise - (2) 1/4-Inch TRS Inputs and Outputs for 2-Mono or 1 Stereo Signal</br>Breaks Ground Loops Safely - Automatically Converts Unbalanced to Balanced Signal Without Any Signal Loss</br>Maintains Highest Sonic Quality - High-Performance Ultra-Compact Design - High-Quality Components and Exceptionally Rugged Construction</br></br>Product Description</br></br>Almost all 60Hz AC hum is caused by ground loops that act like radio antennae (loop antenna). The Hum Eliminator completely eliminates this by breaking the ground loop?? making it impossible for the signal lines to pick up the AC hum and noise in the first