iTunes needs tuning

I used to use iTunes as my primary music player on my PC.  I recently bought new Logitech speakers and now everything I play on iTunes has too much bass.  I can compensate for this using the equalizer but that is a feature I love about iTunes, the equalizer.  Anyway, I now use RealPlayer because it sounds so much better.

Anyone have any ideas how to tweak whatever needs tweaking so I can return to iTunes?