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... you can often improve by defeating the ground of any power cord. In other words, use one of those cheater plugs or yank out the ground prong. It works ... yes, you are taking a chance with shocks ...Defeating a power cord ground can be a useful diagnostic tool to troubleshoot ground loops, but it's not a solution. If your system sounds better with the ground defeated, the solution is to get all the grounds at the same potential.