That huge power supply is still there in the AVR with preouts and could theoretically cause issue in the lower voltage signals associated with the video/audio signals before amplification. The stand alone pre/pro does not have this so they get to charge you more for less parts;\)


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