Don't know what's wong with me

Grannyring,
Yes, the circuit is certainly a determining factor regarding the final sound. There are enough variables involved that make blanket statements about output tube character a bit tricky. Different amps which use the same output tube can sound very different from each other. Then consider the brand of output tube and their own characteristics. Hard wired or circuit board? Direct coupled,capacitor or interstage transformer? which brand? Choke filtered? AC or DC heated? Power supply caps, electrolytic,film or oil? Copper or silver wired? Who's the amplifier builder? Many variables play a role.
Charles,

Even the power cord you have on the amp. So many factors. I loved those Triode Corp of Japan 845 mono amps at Expona.

Bill,
The first time I heard those Japanese 845 PSET amps driving the Crescendo I knew they were special. It was at CES a few years ago. I listened to them a good 45 minutes. The next day I revisited that room and stayed over an hour. Both times I was able to play music I brought with me. Just a very involving presentation of music. I've heard that pairing again at other shows, same positive result. I'll gladly keep my current system but I could be very happy with the Triode Corp and AZ Crescendo as well. There were many more expensive systems I've heard that weren't nearly as musically/emotionally satisfying.
Charles,

First it was the 300b. Then it was the 2A3. Next was the type 45...

Its not actually the tubes themselves, its the bandwidth with the output transformer involved that is why the lower powered tubes sound better.

Theoretically the best sounding SET would thus be the one that made no power at all :)

Good one Ralph