In this mini-episode, Bryan describes how to use multiband-EQ on vocals. In the examples given, the first play is the raw sound (after noise reduction) and the  latter play is the same exact recording after the EQ has been applied. In some takes, the change is subtle. In others, it is more profound.

Here is a youtube video that describes this kind of EQ, in case the audio description is too hard to follow:

http://www.youtube.com/watch?v=qdDDVortvRU