Folks,
I own the Gryphon Mephisto Solo amps & the SM-101 MK-II Vitus amps before this. Both amps have their strong suites. The Gryphon has more resolution, openness & dynamic snap and can sound big for it's power rating. More neutral than Vitus.
Vitus on the other hand sounds very organic with equal micro dynamics. the macro-dynamics can becomes constrained and can sound restricted when you increase the volume. At low volumes it is ethereal.
Back to the gryphon, it changes color & tone depending on the cables, power cords you feed it with. With the Stealth Cloude 99 it sounds very clear & clean placing it on the lighter side of neutral. some of the other cords give it a darker tone.
So at the end you choose what you voice it with & how you like the sounds.
Enjoy!
-TJ