Hello all. I recently purchased a Denon AVR-X6700h for my home theater. I have all 11 amps working in a 7.1.4 setup. Yesterday when I was listening to music on Heos, I noticed the front screen of the actual unit would start flickering when I turned up the volume (admittedly pretty loud). The flickering matched musical bursts. I am wondering if this is a result of the power supply not providing enough current. Any thoughts?