Originally Posted by Cujo
would opposite polarity fed to the equipment effect anything in terms of durability and stability on the power supply and the electronic borad in my DSP?
It's AC, so the polarity reverses 60 times every second. The power supply won't care about power line polarity. And the input side of your power transformer (the first significant item in the power supply) is a single coiled wire, so the placement of ground on one prong or another won't matter.

Living room: 818v3, Audio Research D150, Maggie 1.6
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