Hello, Friends and Neighbors,
First of all, Sebrof, thanks a lot for the ringing character endorsement! You, too, are a great guy. And it was fun to play a little hooky from work.
So, yes, Sebrof and I got together earlier today. I played the troublesome tracks on his Tekton Katz Meow's through my amp and the amp clipped prominently. Sebrof himself noticed it within a few notes  it was not at all subtle. The other thing I noticed, in retrospect, was that the Kit 1 did not play as loudly on his much more sensitive speakers as I thought it would. (This later led me to wonder whether the amp is even putting out its rated wattage at all.)
We then hooked his 2A3 amplifier at about 3 W per channel back into the system and the same tracks played with no trouble at all on the Katz Meow.
So, we have now confirmed beyond a shadow of a doubt that there is something wrong with my amp. Either I mis-wired something or I have a part that is bad or out of spec.
I would say this is good news and bad news.
The good news is that I didn't rush out and buy a new set of speakers for the wrong reason. Imagine my having sold my De Capo's, bought a set of Tekton's, and then finding out that I still had the same problem!
Brian and I have already been in touch back and forth via email. He has given me several things to check. If all of those seem okay, then I am going to take the amp to a local shop that said they would be glad to work on it if they had full schematics and a wiring manual. Brian has sent me those already in case we can't figure this out over the weekend.
So, again, thanks to Sebrof for his time and generosity and thanks to all of you for your interest. I do have to say that if the amp sounds this great with cheap tubes and a build problem, imagine how great it will sound when it's actually working properly! ;-)
I will keep you posted.
