Morley Hum Eliminator will not affect the quality of the audio. It will improve it. The Morley Hum Eliminator uses custom in-house made Isolation Transformers to break loop antennas that cause ground hum and buzz. The Hum Eliminator also converts back and forth between balanced and unbalanced connections and prevents the cable to act as an antenna for noise. Simply place a channel of the Morley Hum Eliminator on the cable connections between the two offending pieces of equipment. Morley uses 1/4? smart jacks that accept any combination of unbalanced (TS) or unbalanced (TRS) plugs. These are passive devices (no power required), in cold rolled steel housings, hand soldered circuit boards and top quality components and hardware. Morley Part Number: MHE Not Intended for Use on Mic Level, Instrument or Powered Speaker Line Features: Prevents Ground Loops That Create Hum and Buzz Custom Morley Isolation Transformers 1/4? Smart Jacks and XLR Jacks Converts Back and Forth Between Unbalanced and Balanced Cable Types Simply Insert on Audio Connections Between Offending Pieces of Gear Cold Rolled Steel Housings Hand Soldered Circuit Boards All Morley Products are Designed, Developed and Manufactured in the USA. Specifications: Dimensions: 4.75? (L) 3.25? (W) 1.75? (H)