Yeah, prepros often “smack” dedicated stereo components. NOT!
Here we go again (don’t I remember you). You are the guy who just pushes a button and rotates a knob on the purist preamp for magic to happen...and that’s about all you can do, right? And as you keep spending 100k, 500k, etc on a featureless crap preamp, it will just keep sounding even better and better (because the power supply got better apparently!! and ya get what ya pay for!!) Anything else might just be too complicated for you. Stick with your 1 knob preamp and continue on with your purity brand, continue rotating the 1 knob well. The other is for guys with more technical prowess (not for you, of course)..
Good luck.