@asvjerry …”....I’m still stuck on ’grain in the treble’, and whether is was wheat or oats....”
I would have to say actually more like sandy. I remember hearing about grainy treble. I could not for the life of me imagine what that would sound like until I heard it… you know that feeling when it is as if your blood just turns hot 🥵 and descends down your face making you realize you made a huge expensive mistake? Like that. Sandy. Not smooth… the last big mistake I think I made in audio… that was about 1980. I returned it at a big loss and bought a used Audio Research preamp which the guy guaranteed I would love… I did. I think I kept it for nearly twenty years. Now all my equipment is all Audio Research…. No sand.