@chesebert i'm afraid to hear a high-end turntable setup, lol; I have never went down that path for better or worse. I do agree with you about digital streaming. I've been at this since 2007 when I first started messing around with Squeezeboxes and DACs; Last year was mega experimentation with lots of different DACs and transports; My current solution -- Roon ROCK core connected to "A" side of EtherREGEN, "B" side feeding the M3, is a wonderful experience.
I did play around with the M3 digital filter settings and find I like the linear vs the minimum phase. I am stunned by how much sheer performance 44.1/16 bit contains.
Cheers and enjoy the music!