I'll have to look for that one on Amazon!

One in my collection I reach for to test bass is a Paul Hindemith organ works CD. Not sure if it's in print anymore.

When I worked in audio, (20 years ago) a customer of ours had this CD and kept blowing up his speakers with it. Finally, he brought it in the store to see if we had any speakers that could handle a passage with a pedal note on the order of 15-16 Hz. When it hits, it just starts making the woofers/subwoofer go crazy.

Of course, I picked up a copy for myself. Though it's sort of an oddity -- and I'm not overly fond of the music -- it's been a keeper, because I don't think I've ever found a system that can handle that passage at normal listening levels.