Hi @smodtactical, I own three old Arics preamps. A very early 3.5 I think it is,an Unlimited ( it’s a 12a?7 based pre. Aric’s preamps are a tube rollers dream) and a Motherlode II. I find the Unlimited to be more on the warm side than the Motherlode II. The Motherlode II is neutral with just a sprinkle of warmth. This pre is also VERY responsive to tube rolling. I’ve never had the pleasure of hearing your Pass Labs amp,however if it has any of the same DNA as the First Watt amps,it will be a joy to listen to. I hope I answered your questions.
Ray