Doc B.
Member of the Trade: Bottlehead Corporation and The Tape Project, LLC
I would most emphatically agree. There are as many flavors of headphone amps as headphones (sheeyeah, ask me how I know, that's why we have four models and plan to do one or two more), and one really needs to try various amps with a specific headphone to find out which works best for that headphone. Can Jam is the ultimate opportunity to get a whole bunch of amps in the same room and listen to them all with your favorite cans. At smaller Head Fi events it's safe and easy to borrow some headphones that are the same as what you own from one table and try them at another for a few minutes. At an event of this scale that becomes a little bit more difficult, and IMO having your own cans with you is going to make it easier to try every amp you want to hear the way you want to hear it.