Another "kinda-newbie" head scratcher

Does the volume control affect the loudness of the noise. If so, you may have defective components in the phono stage of the preamp.

@lewm 

RFI is also electromagnetic radiation, usually travels longer distances at high frequencies but is otherwise similar to EMI

Not really.  RFI is just a subset of frequencies within general EMI.  My favourite AI says:

EMI (Electromagnetic Interference) is the broad, general term for any electrical noise that disrupts a circuit, covering frequencies from 0 Hz up to several GHz (including power lines, motors, etc.). RFI (Radio Frequency Interference) is a specific subset of EMI, referring specifically to interference within the radio frequency spectrum, typically between 10 kHz and 300 GHz 

Currently enjoying vinyl "A Night In Tunisia" via Waxwing>digital coax>MSB dac.

No noise.

Simplest solution.

I will likely be selling two of my three phonostages.  1) Darlington Labs, 2) Sutherland, 3) Parasound 

I just want to thank everybody for their help. I really appreciate it you guys are the best. I was just so perplexed or I wouldn't have asked . But it seemed to have worked fine for a while without a problem. I don't know maybe I'm just losing it. 

To be clear, when listening to vinyl, you will ALWAYS have a certain level of distortion. And that specific distortion is pleasing to many people, and is why a lot of folks prefer listening to vinyl instead of digital (my wife is one of them). Maybe you just prefer the non-vinyl sound more.