Glad you like your JSX, tho the acronym in the thread title is misleading lol. I've had mine for 2 years now and haven't found it as versatile, but is amazing for thrash metal which I guess why guys like Ol from Evile and Josh from Sylosis have used them over the years. Keep in mind I'm running jj 6l6s biased fairly cool.
FWIW I run a maxon OD808 and an NS2 in front (in line, no loop) and the noise filter on 8 and noise floor is incredibly low, virtually silent at stage volume. People are terrified by how quiet my rig runs with the volume/tones this thing puts out.