I was watching a movie with my son, Toy Story, and half way though the center channel didn't cut out completely but dropped to the point we could barely hear it. I went over to the RCA cables from the Processor to the Amp, and just touched the RCA cable on the amp center channel and it instantly sounded normal again. I didn't really push it, maybe just a touch. The RCA cables are cheaper, but look like good quality Amazon basics RCA cables. Now I'm thinking about going out a buying a better RCA cables. If it happens again I will for sure. What do you think?