more info on the wiring/cap upgrade:
The amp is opening up more and more with more burn-in. The soundstage is quite a bit deeper than before. Individual images more clearly defined on that stage, with better timbre, and overall ease and delicacy is improved - this this thing will never compress or distort, it's immensely powerful as it always was (in my expereince as good in this regard as the better SS amps) - yet a it has an even more refined presentation, it's "like butta." Also, the bass is tight and tuneful, as before - maybe even deeper (this one is hard to say for sure).
Anyway, i still need a preamp to give a bit more body and emotional context to the music, but the fact that Im making these observations WITHOUT a preamp in the chain really does speak volumes on the Berning upgrade.
I dare say that you have not heard a Berning ZH270 until you hear it WITH the wiring and cap upgrade. Without a doubt, this is much more than a tweak. It bettered the Cryo'd tubes, ERS and after market PC (an Electraglide Epiphany in my case) - by far. Of course some of this is likely a cumulative effect of these things.....
