Distortion in ADX files... help...?!

[Excalibur007]

I'm having trouble getting my ADX files to sound right when I convert them from waves. They have a lot of distortion. I've tried changing the volume of the waves before I convert them, but it hasn't helped.
Most of the music that I'm using is 128bit mp3 converted to wave files, then I convert them to ADX.
Does anyone else have this problem? Does anyone know how to fix it?
Any help would be appreciated.

Thank you,
-Ex