60 Hz Noise RemovaL Removes AC Hum Noise Breaks Ground Loops Safely Maintains Highest Sonic Quality Passive Device: No Power Required High-Performance Ultra-Compact Design 1/4-Inch TRS Phone and XLR Inputs and Outputs on 2-Channels Audiophile High-Quality Components and Exceptionally Rugged Construction Automatically Converts Unbalanced to Balanced Signal Without Any Signal Loss Uses 11:1 Isolation Transformers to Break Loop Antenna and Balance Audio Lines Automatically Translates Signal Voltages to Match Difference in Ground PotentialsDimensions: