Anyway, the biggest change so far appeared last night, and left me sitting with my mouth open, and laughing with pleasure, since it was an absolute surprise. Since today is the 4th I was able to stay up last night, listen to tunes, and drink beer. After about 4 beers I get into a R&R mode, so I starting playing some. When I cranked up the volume the soundstage literally expanded out to me. I couldn't believe what I was hearing. It was huge, and filled in the whole triangle of speakers and chair. Instruments where at various levels, depths, and locations within it. I had never experienced anything like that before. This was way beyond a modest improvement. It is huge, and makes me glad I made this purchase.
Now I need to get some work bonuses, and a lotto winning, so I can get a pair of X600.5 amps. Does it ever stop?