there is no doubt gryphons are beautifully built... for the asking price they should be
just reminding the op that build quality does not necessarily equal sound quality -- each brand and model are voiced by their producers
i have owned many many amps, roughly 40 over the years, half solid state... i have NOT heard a gryphon except for short intervals at some high end shows, not an intensive sampling
but i would say that i own 3 hegels in various systems -- sound wise, they are among the very small handful of ss amps i can happily live with long term, as they have the warm full rich tonality i desire, with clean yet unobtrusive natural rendering of detail
no affiliation other than being a very happy owner
good luck to op - by all means try the gryphon, but don’t let the big hegel be underestimated for what lovely music it can make