@milpai, I'm not surprised by your conclusion. I've owned a couple of Class A amps in the past but not where I could make an appropriate comparison. Without going back through the whole thread I think you had experience with something from Parasound. A few years ago I had quite demanding speakers driven by a pair of JC-1s. Those had switchable bias and even the modest 25 W hi-bias option had noticeably better sonics.
Now with a completely different system (including less demanding speakers) I have a modest (for them) Accuphase E-280 which I find absolutely musically satisfying.
Enjoy yours.

