Great thread. Finding some awesome new things to listen to.
_Lateralus_ - TOOL esp. 'Reflection'
_Becoming X_ - The Sneaker Pimps 'Low Place Like Home' is such a great opening song for you bass-heads.
'Day of the Baphomets' - The Mars Volta - The intro bass solo should blow your mind. If it doesn't get new cans.
(Most of the Mars volta should be on this list, really. The songs have so much going on that they will be a good test for any system/ear!)
_10,000 Days_ - TOOL - esp. 'Jambi' and '10,000 Days'. Oh, and the rest of the album.
'Eulogy' - TOOL. The intro esp. has some amazingly haunting details. (I am trying to not just put every tool song on here.)
'I'm So Sick' - Flyleaf - The MUCH more raw LP version. Great soundstage, esp with the vocals.
_MTV Unplugged with Alice in Chains_ - Its everything you want and more.
_Long Hair in Three Stages_ - U.S. Maple - 'And now for something completely different.'
_The Woods_ - Sleater-Kinney - Especially 'Steep Air'
'Hurt' - Johnny Cash
Radiohead.
I guess that is enough.