Breaks Ground Loops Safely - Maintains Highest Sonic Quality - 60 Hz Noise Removal - Removes AC Hum Noise</br>1/4-Inch TRS Phone & XLR Inputs/Outputs on 2-Channels - High-Performance Ultra-Compact Design - Passive Device: No Power Required</br>Audiophile 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 a