Jl audio fathom f212v2 noise and hum


Just picked up a pair of these to replace the svs pb1000 i had prior. However after plugging these in to the same outlet (its a panamaz suge protected outlet) i’m experiencing two things i did not experience with the svs pair.  1) there is constant low level noise, like a very low white noise that is present when on, even if not connected to anything else. 2) a cyclical hum that seems to come on when my panasoni vt60 plasma is on. I beleive these are likey using the same circuit/ are wired though on different outlets.

Ive tried rca and balanced cables. No discernable difference there.  The subs are massive to move but next step is im goint to try them on dedicated circuits in a different room to see if that does anything.  Open to ideas here and hoping there is a solution. Thanks! 
esthlos13
So tried a bunch of different tests and the cyclical buzz hum seems to only manifest when I have the marantz 8802a on the input for the TiVo mini. Going to try one of the cable tv ground loop isolators and see if that gets rid of it.  
Oh and the ground switch on the back, after reading the manual is only for unbalanced inputs. I’m using balanced but thanks for the suggestion. 
Cable tv ground loop eliminator and emotiva cmx-2 have been ordered will post back in the next week or two when they have been tested. 
So I received the CATV ground loop eliminator - that seems to have taken care of the cyclical hum I was hearing.  However when bright scenes show up in the plasma or I’m fast forwarding there is still hum that seems to track with it. Hopefully the Cmx-2 will help with this. 
Emotive finally restocked the CMX-2, and I got one. And that did the trick for the hum

only question left is whether all jl audio subs have a small pop when turning on.  It’s  not loud but loud enough to hear. Hoping that’s normal.....