After upgrading my system to seperates, I am starting to notice some things that I guess were always there, but now are much more evident. One of the first DVD's I got when I bought my Sony DVD player was Session at 54th Street, which I have listened to many times. Ani DeFranco sings 32 Flavors and at the beginning of the song she runs here fingers up the strings, and I noticed that now the sounds of the fingers moving up or down up can be heard very easily. Other subtleties like lips parting in between words, etc. are now quite easy to hear. What have you noticed after you have upgraded?