I hear nothing particularly bass-heavy in the sample file. Even the deep synthetic kick is about where it should be. What's that file look like in a spectrum analyzer?
And are you judging it with headphones, speakers, or both? If so, what models?
If speakers, it may be that the patches are exciting a room resonance that makes them sound boomy.
If headphones, they may be bass-hyped, as so many models are nowadays. If you tell us you're using Beatz by Dre that you got for $400 at the AT&T store, that would be the answer! :D