Have you tried turning off each breaker for the house and rechecking for the static? This would enable you to find the culprit circuit, if its a circuit at all.

Could it be one of your new components has an issue, the Emotiva or monoblocks has a bad internal circuit? Have you tried using just one monoblock then the other to see if only one will cause the static but 2 definately does, obviously. I am thinking the Emotiva has a bad ground or just a bad connection on its boards.

The static wasn't there with your old amps right?

Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70