Boards of Canada - Music Has the Right to Children
Needles & Grooves
Rip_City
LeSamourai
I like to use the track "Contact" by Daft Punk to test new headphones.
Corycm
One of the older REM (IRS) albums - I’ve listened to them so many times, I feel like even though they might not be sonically perfect, I know them in and out so differences stand out.
I’m Just Ken
Rick James-Street Songs
debianlinux
Octo Octa - Between Two Selves (it's extremely layered, thick, and has huge range that will test any system)
scotthilk
Outkast - Intro (off Speakerboxxx)