Having addressed, I hope, the major issues, I'm now focusing on AC power. Just replaced a PS Audio Premier Power Plant regenerator which, I thought, gave excellent performance, with the new PS P12 regenerator. However, downstairs, I'm thinking about using independent line conditioners (running monoblocks) for each side. Just purchased the Greenwave EMI meter. Won't use, most likely, their filters, but wondering how folks approach the whole AC conditioner/purifier issue? Worried about EMI? Audible? Tough to discern the legit from the magical claims. Probably opening a Pandora's box but still interested in people's thoughts.