Steuspeed, you state:
Also the tubes tinkle for quite a while during warm up. This got old after a while.
I assume that you're talking about the noise produced by the thermal heat up of the tubes, as no "tinkling sound" should come through the speakers. I would also assume that all tube amps would make some noise during warm up, but since the Atma-sphere amps don't have covers, his sound may be more noticeable.
Never bothers me...lasts only about 1 minute or less.