First time poster :).
I ran into a ground hum problem (very loud) in the following chain:
Rega P1 TT ----> Schiit Mani/iFi Zen Phono (doesn't matter which one) ----> miniDSP 2x4 HD (rca in--rca out) ---->Topping PA 5 x 2* ----> DIY LXmini speakers.
(*The RCA to TRS cables for interfacing the...
