Eliminates ground-loop hum and buzz for clean audio in studio, home, and live stage setups. Passive XLR isolation transformer preserves original sound with no coloration or signal loss. Compatible with microphones, mixers, speakers, computers, and other audio equipment. Features balanced/unbalanced XLR input and output with support for mic- and line-level signals. Rugged all-metal chassis and gold-plated XLR connectors ensure durability and reliability.