There are a whole bunch of threads on this.
audio tuning by software:
link
and
link
and
link
There are more threads out there, but this should keep you busy reading for a while
__________________
Never let the truth get in the way of a good story
Chat on the mp3car channel on IRC
Server:
efnet Channel:
#mp3car
No irc client installed? Go to
http://chat.efnet.org/. In the channel drop down box select "other" and type in #mp3car.