crackling sound out of right speaker

hah no wonder. they got all amps like that LOL

Maddog, There is a distinct possibility that your house is possessed by demons. You need an Exorcist. However, this sort of paranoia is quite normal for audiophiles. I am going through it myself. One of my monoblock amplifiers keeps blowing very expensive output tubes. Yet on the workbench I can find absolutely no reason for it. (And I do understand the circuit, have all the necessary meters, 'scope, etc.) I am left with "bad tubes". This is most unsatisfying.

Nevertheless, if the tech's head was spinning around 360 degrees, run! Sell the house immediately.

Lewm, you may very well be right. Here's the odd thing. I haven't noticed any crackling noise in the Sonic Frontiers Amp recently although there's still a hum which is a ground loop. The reason the rogue quit working, the fuse in the amp blew.