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Old 7th June 2020
Lives for gear
David Rick's Avatar
There is much larger interconnect surface area on XLR pins than TRS connections. That won't matter now, but it might in ten years, depending on whether you live in a coastal or humid area or let people smoke in the studio. If you're really concerned about long-term reliability, you should also match the pin plating with that of the equipment: gold with gold, silver with silver. That will prevent galvanic corrosion, preserving not just your cables but also your rack gear connectors.

OTOH, TRS can be more convenient for mobile rigs if you must set up and tear down in a hurry.

David L. Rick
Seventh String Recording