There are tons of tracks available. The particular one you introduced is very good — it even sounds good on my Mac. The only thing I could immediately criticize is the lack of a strong vocal component that would help reveal whether a system is prone to sibilance, which drives me nuts if it’s prevalent.
Try “Company” from the album Modern Cool by Patricia Barber. It has everything you want plus sibilance control, instrument separation, soundstage depth, etc.
Don’t limit yourself to just one. I usually bring three tracks with me when I go test systems or gear in shops. One of them covers complicated passages, such as a symphonic orchestra. It really depends on the genre of music you primarily listen to.

