I agree with your EG thought process but unfortunately UL, CE and others disagree - and I bet the legal review of any issues would fall back to looking at those agency listings, electrical codes, etc. I'm not arguing for their thought process - I'm more interested in what Bob Carver Corporation is going to do, if anything, about the situation. I saw a note that said Bob agreed to pay shipping both ways to have anyone's amp re-wired to utilize a chassis ground at no charge but there isn't any mention of this on the Crimson 275 web page.