Humm from phono but not dc or aux ?

@atmasphere , Not just Regas. I personally saw (heard) an early Reference do it on a Sota with a grounded motor. When you moved the tonearm closer to the ,motor it got louder. 

Hey guys, would anything change if I connect phono pre to pre amp with balanced cables I do have that capability ?

thx

@analoghaven  - Can you please describe this "RF" noise you talked about. It is not clear.

Crank it up on phono (no contact) and move the cables around.

If that affects it balanced would be quieter

Cindyment, have to turn it up to 12 o'clock hear faint Radio station actually too low 

to even make out what they are saying.

But that's way louder that I would ever listen to just past 9 o'clock is abut the limit.