When I was going through the process of buying new speakers, I put together the following playlist. Most of these are available in 24/96 and provide a wide variety and an enjoyable, repeatable listening experience.
Schubert Complete Trios (Trio number one third movement) - Beaux Arts Trio
Beethoven Ninth Symphony (first and last movements) - Gustavo Dudamel and Simon Bolívar Symphony
(Alternatively, or additionally
Beethoven Fifth Symphony (first movement) - Carlos Kleiber and Vienna Philharmonic)
Blue Moon Revisited (The Trinity Session) – Cowboy Junkies
Romeo and Juliet (Making Movies or Best Of) – Dire Straits
Coney Island Baby (Coney Island Baby) – Lou Reed
Candy’s Room (Darkness on the Edge of Town) – Bruce Springsteen and the E Street Band
If you want something even louder,
Paradise by the Dashboard Light (Bat Out Of Hell) – Meat Loaf
Unless you are a big jazz fan, 24/192 is still really hard to find but you might like to sample something from Crime of the Century by Supertramp, Turn up the Quiet by Diana Krall or Come Away with Me by Norah Jones?