The more expensive way to do this is to use an isolation transformer.
RCA to XLR adaptor causing amp to shut down
Can anyone help guide me please: Using RCA to XLR adaptor causes amp to shut down going into protection mode. The application is Luxman 595ASE pre out RCA to XLR on Avantgarde Duo Mezzo XD active base units.
When using Mark Levinson pre RCA out this works fine.
Opening up the adaptor, pins 1, 3 and what I assume is an earth tag are linked with pin 2 connected at the RCA end. I tried cutting the connection between pins 1 & 3 and this stopped the shut down but introduced a significant hum.