i have had the same probalem in different degrees over the years, thousands spent and the result is bleeding ears. because the poster has stated that his system sounded good at his dealer's, it has to be a room problem, and possibly ac. he states he wants to keep the thiels. my gut level feeling is that a cable switch may be helpful. even though many like the aq wire, i have found it sometimes harsh-sounding; it all depends on the system. i have spent a lot of time auditioning cables. but rather than giving specific recommendations, i suggest contacting the cable co (www.fatwyre.com) and getting some cable to audition. you can keep the thiels, but tame them a bit.