I have new one for you people. Well, not really a new, but it's truly hard core song witch you must have. My friend is a hard core trance fan, and I found this song from his music collection by change.
Infected Mushroom - Institute of Sience
At first glance it sounds just like normal dance song, having those normal bass spikes like
umb umb umb, but it is much more than that. The bass sounds a bit harsh and cold, but when you crank the volume up, it feels like the god himself has to come to visit your house. Stongest signal is around ~15Hz and it gets weaker at the upper frequencies unlike in normal songs. This is the first song that really gives a chakedown for my apartment(wich is just one big chunk of concrete), all places rattling and falling apart.

Of cource you need a big sub wich is low tuned, otherwise the experience will not be as cool.
Hey
Scott Simonian, just be easy on this one, otherwise you won't have any place to live.
