I dislike the font and the colors. Not bad but I think its too plain it does not really reflect a DJ apart from the wave if it's suppose to be a sound wave. Both has nice concepts, but need to improve a little.
I really like chlopzmazur's logo. I'm not close to any of the participants, but I really like that design.
Pixobox, follow your first design.. just make it a bit less fancy, keep the C how it is.. and maybe just the red dot on the i and no other colors, try that.