I know this is a tough question but given an audio set up you are excited to hear, what would be that one first track you'd have to pop in and hear over what you hope will be a "blow you away system". The absolute first I'd play on a broken in system would be Max-o-man" By Fourplay. That track has grown to be my benchmark track by which i compare systems to each other initially. Actually this weekend I listened to it over some Watt/Puppys and it blew me away.