Got a loaner of the Bogner Anniv 101A
traded the PT100 temporarily so we could both check out 2 top amps
Cleans: the PT is all a clean channel needs to be. Same across the OD range. Best clean channel on the market IMO.
Bogner really sorted out the clean on this amp. It has warmth and power and kept me playing. Much to like here.
Drive channels: The PT snarls, has a high mid dominance and spits at you in true modded Marshall fashion.
there is a steel wool fur to the attack, so not super tight and won't suit the modern ultra high gain freaks (said with respect).
it suits aggressive, knarly stand-out tracks
The Bogner has huge low-end, not so much in the way of mids, and a rasp to the top, much higher than the majority of the fundamental sound, that I couldn't dial out
Even with the plethora of options (which are now perfect), it didn't work for me at all.
The strangest thing about the amp is the sound on chs 2/3 gives the impression that it is the greatest tone, but is coming from 3ft behind the speaker cab - the clips on James Lugo's High Gain Amp Shootout confirm this. I mistakenly thought it was a more ambient recording than the others. That cool sound you hear you cannot get to, it just won't come forward into the room, or to the mic.
I have called the PT back as the Bogner is off never to be turned on again.
The 101B sounds much better for drive, with a smoother top, although still light in the mids.
the 100A I recently tried at volume slayed them both with thick mids and no rasp. Make that again Rheinhold, and I will wait in line.
I much prefer the OD-100 Classic+ for that middle ground from. It is warmer and thicker than the PT with less rough edges.
Picture analogy for fun
Bogner:
PT100:
Classic+: