Implement Equalizer to C# Music Player

I have made a music player in C# WinForms, all going good. Now I want to add an equalizer interface(the vertical sliders that change bass, treble, etc), just like Winamp's EQ, but I can't find anthing on the net.

To clear any doubts about what I mean, look this picture:

That's it. I don't need all the bands, I need at least 5 or 6.

Thanks in Advance - CCB