As a side note: does anyone know how to EQ the M50's well for bringing out the vocals more?
Vocals usually respond to an EQ boost in the 500-1kHz range. You may need to experiment with boosting some frequencies above and below this to get a smooth frequency response so that the resulting sound is natural.
I also strongly recommend the equalization method outlined here by PiccoloNamek
with the caveat that you should mainly just aim to smooth out spikes in the response above 1kHz, not attempt to totally flatten the frequency response as heard by your ears.
Oh, and try to EQ subtractively, that is, "boost" 500-1kHz by lowering all the other frequencies, not pushing 500-1kHz above the zero mark, to avoid distortion.
Edited by Joe Bloggs - 7/8/11 at 4:39am