Never gone to one, what should I expect? Is there a registration fee?

Hi, I'm new here too. I'm a young (23) headphone lover just getting started. I have a pair of Shure SRH1540s right now and love them.  I'm a music teacher and a musician, so I take sound quality seriously! I'm always interested in trying out new headphones. 

I own a pair of Shure SRH1540s and love them. Currently I'm using a Fiio E11 Kilimanjaro as my amplifier. I want to take it up a notch.   For casual listening, I plug my amp into my MacBook Pro and listen to iTunes files, usually in Apple Lossless or 320kbps.  For serious listening, I hook my...