Hi there, just a quick suggestion on another track you might wish to add to your music audition repertoire/list:
http://www.amazon.com/Sheffield-Drum-Track-Disc-Master/dp/B003JG93DC
Track 1 off that disc, Jim Keltner's improv on the drum kit is one of my must have's for speaker auditioning. I usually couple it with Track 2 as well to note the differences, but Track 1 is definitely my go to track for dynamics.
Yes, the price is a little on the high side for a CD, but it tests the attack and dynamics of a speaker/sound system like little else out there will. You've got material to check out the midrange and vocals (and that's crucial to me too, as I especially love the sound of female vocals), this track will test other aspects of the acoustic reproduction.
Simply put, on properly set up systems, this track sounds like a live drummer in front of you. It starts off with a little light cymbal work and you can pay attention to how clear the 'tings' sound, then the track moves through snare drums, toms, kick drums, Zildjian and Sabian cymbals and you can listen for the shimmer and the difference between the shimmer of the different cymbals. Jim also switches from sticks, to brushes, and mallets and you should clearly hear the differences.
The kick drums should have visceral impact and the other thing about the track is that good speakers will soundstage the whole kit. You should be able to distinctly place the cymbals, the different drums and toms and such with your eyes closed and you'll hear him play across the field from left to right and back again, even as he plays rimshots too.
Lesser setups won't be able to play the track loud as the transients in this track will cause those systems to distort and clip. You'll be able to hear how fast the attack is on speakers/setup, because lesser systems will be muddy, and the simple gauge is: does it sound like a live drummer in front of you? That part is easy for me as I had a college room mate who was a drummer and had his drum kit set up in the living room (I used to play around on them once in a while too, but never actually played in a band).
Although a system for music is a little more critical in refinement, it also depends on the kind of music one tends to listen to. Some setups are refined for certain types of music and have better detail, but are more 'polite' and may not keep up as well with the aggressive dynamics of HT or other types of music as they're just incapable of playing loud enough to handle the transient spikes with ease. A system that can handle the dynamics of the percussion in this track at volume will also handle the dynamics of that part of the HT experience with aplomb.
Cheers and good luck on the search/quest.
Max