Here's one of those "always good to know tips" from Mac OSX Hints that may in fact make your music sound better with improved balance. These 'non-flat' iTunes equalizer settings are said to output the music the way it was intended to be listened to. To get started, open up your equalizer from the view menu and select "make preset." Call it whatever you'd like for future reference and set the levels, just like below, from right to left (while skipping the preamp section): db +3, +6, +9, +7, +6, +5, +7, +9, +11, +8 db. Make sure that the 'on' box for the equalizer is activated. The pic above will show you what it is suppose to look like. One thing I noticed is that it works well with external "high quality" speakers but not when you are playing music through your laptop. So if you just use your laptop for sound, it may be best to keep your settings on default.
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