Well, if my oddball headphone setup is any indication, then your system certainly reveals the qualities of the recordings. Al Di Meola and Livingston Taylor I could listen to all day, even when powering my old HD600s via my MacBook Pro and VLC. Yet as is perhaps to be expected, then the other three recordings are somewhat less satisfying. Guess the compression muddles everything up when you are used to high DR recordings played back through a 6AS7G with +/- 55V on tap for the headphones.

But as for the transparency department then I don't think you have anything to worry about for sure. Everything is revealed in brutal detail (and possibly agony as well).

Too bad I am a very long plane trip away from Illinois...
Frank.