I'm a little late to the party but I did try at length the 550 AXii with the Cornwall. I found it to be very dull and boring compared to the Decware tube amp and some others too. Just kind of grainy and uninvolved I would call it. Overall I was never a fan of the Luxman. It ran really hot to make it worse. In the summer I couldn't hardly stand to use it in my small office. In the winter I didn't need to turn on the heater. I love the looks and idea of the Luxman but overall I'm not a fan. I sold it after about a year or so.
