Hey people, new here and starting off with a stumper for me. I've got a fair amount of electrical and audio experience, just not too much with home amps, more for cars and pcs. Recently I've removed all rca connections and set up all hdmi equipment to passthrough the tv to the amp with optical. Immediately I got this occasional few second static coming only through the speakers that I just discovered is caused by the subs preamp cable. As the sound was occuring I wiggled the cable on the preamp end and it went away. I yanked the cable and since it hasn't happened. Its a monster cable split into a 2 channel rca cable. The subs an mtx. Works fine. It IS next to a mini fridge which causes obvious noise when running, but I believe that's totally unrelated. The problem started long after the fridge was put there. Im going to try a few things to try and replicate the symptom, but any advice out of the ordinary would be awesome. Thanks.