Hey Hopeful, I have talked to Klaus a couple times about upgrading my Candela and his suggestion was to go to the Symphonic line. I tried to upgrade it by buying a Cary SP05 thinking, because it was about $ 7K, I would get better sound. But when I compared them side by side the Candela was more detailed on the high end and just sounded a tad better. So I tried with no luck and just stayed with the Candela because it sounds so good. If you find something better, I would love to hear about it!