How are you hearing no difference?

Not a bad metaphor, cbrents73. Just a side note to dig in a bit to the tubes/transistor point. You say one will be "more right." Each have qualities that are superior to the other. We know that traditionally transistor amps have killer, tight bass. Tubes have sweet, transparent mids and highs. Which is better? One is "right" for me, the other is "right" for you. Both, then, are "better" for someone, but they are certainly different. If one amp had the best qualities of both THAT would be the better amp. Otherwise you'll just have to choose which one you can live with; which one is right for you.

@dohanian - My solution to the tube/transistor, strength/weakness point, is to actively bi-amp, with SS on the bottom. The results can be wonderful, if it’s done correctly.

@cbrents73-   +2(one per post).   

I've never understood why people who claim everything sounds the same are even in to the audio hobby, and especially why they spend so much effort across the various audio forums trying to convince people they aren't hearing what they are hearing.

OK right, then you must plug your ears and conduct a 'silent test' when you compare the taste of two different hamburgers. Because of the 'psychodegustations'.

So you're saying that 'good' hearing is quantifiable among those who have it?