Two days of playing and I am very happy with my new receiver. Tonight, I went through the setup & configuration settings in more detail. There is one setting in the Audio adjustment menu for turning "upsampling" on or off. The default was off and I was wondering what anyone knows about this. From reading the description in the manual, I would think that this should be enabled. Manual explanation " Upsampling - Upsampling processes the input digital signal, or the digital signal converted from a analog input source, and converts its digital sampling frequency to twice its current frequency for an even further detailed sound reproduction." I know these receivers have 192KH, 24 bit DACs, but does this setup have to be enabled to get the full potential of them? Anyone understand this feature?