ZXY XLR Stereo Audio Ground Loop Isolator Shielded Noise Canceller Anti-Interference Audio Signal Isolator for Computer Product Overview This XLR stereo audio ground loop isolator features a built-in professional audio isolation transformer design that effectively eliminates ground loop interference caused by different ground potentials. It filters out annoying hum and buzzing noise without distorting the original audio signals. The compact shielded housing ensures reliable