I suspect the two Amps really don’t sound that similar. The Gryphon is likely squeaky clean and accurate, and somewhat unforgiving of any shortcomings in the chain. The Pass Labs is likely creamy smooth with midrange being the star of the show for stellar vocal presentation, and not so brutally honest. The SF’s are soft in presentation so the choice is to sharpen the SF’s with the Gryphon, or further accentuate their softness with the Pass Labs.
