1. Dvorak, Symphony No. 9, "New World", movement 4, Kubelik, Chicago Symphony Orchestra, Mercury Living Presence
Doing orchestral works at scale and power is hard, and this track in particular tests the "power band".
2. Tuesday Night Jazz at the Swinging Door, jazz septet field recordings made by me, 2010 - present
I made / make these live field recordings myself, as well as mixing and mastering them. I know them inside and out.
3. Metallica, "Enter the Sandman"
It's got walloping bass drums and power chords. Sounds awesome on frat rock Cerwin Vegas, crappy on most panel speakers, and a toss up for other dynamic speakers.
4. "Nojima Plays Liszt", Reference Recordings
Solo piano, lots of hall ambience, recorded by Prof. Johnson. While Nojima is a bit restrained as a pianist, the recording itself is one of the best classical piano recordings ever made.
5. "Be Good", Gregory Porter
Most often I hear people recommending a female vocalist as a must have, but this seems to be so common a test that most systems do it reasonably well (why else do you think there is so much Diana Krall at audio shows?). But Gregory Porter has a creamy baritone and a upper range, too. The low notes can sound chesty on systems with bad bass control and his highs can get shouty if the mids are peaky.