Hi, My own experience: I first installed a 12 gauge dedicated ground, going to an 8' copper-plated brass rod or post driven all the way into the ground, complementing a dedicated line from the main breaker panel. (Of course its ground own was removed when the dedicated one went in.) I heard an improvement, but not major. Then I changed to a 10 gauge ground wire, all else the same, and DID hear a major improvement. I almost wish I'd gone all the way to 8 gauge. Please consult stnemo@starpower.net on this, though. He was the one who told me to use at least 10 gauge. He's the Stealth cable designer/manufacturer, and could supply a great power cord if that's what's called for. affordable too. But he could also tell you whether it's necessary. His power cords made a big difference in my system, BTW. But then so did his interconnects, digital cables and speaker cables. Along with the dedicated grounding, you might want to give them a 30-day money-back guarantee try.
