What gear do browsers (i.e. people not setting up a rig) normally bring down to the floor? I was planning on bringing my phone and a DAP as sources, and closed portable headphones for listening. Is that even necessary, or do the booths all have their own preselected music and headphones for you to try their stuff with?
Last year I brought my portable headphones (HP100) and DAP (Fiio X5) along with a 1/8" to RCA (for using line out into an amp) and 1/8" to Coax with Coax cable (for using as a portable source into a DAC). This let me test headphones, amps, and DAC's against equipment that I was familiar with, with music I was familiar with. I was kind of a lot to haul around but totally worth it.
Of course you don't NEED to bring any of that if you don't want. You could just show up and sample the sweet sweet gear. :-D