Linear Tube Audio will be in the marketplace with some MicroZOTL2s, our ZMF<A Omni LE, and some Metrum Musette DACs, along with some headphone standards (AXPONA was fun, but our table was kind of a headphone testing table for a lot of people, more than a MicroZOTL2 listening table, which was fine) and possibly a surprise or two, but that's up to how things go in the workshop in the next month. We also may be in a room with our power amp, with the MicroZOTL2 doing preamp duty, but due to some craziness it's still up in the air.
There really don't seem to be that many headphone-related companies exhibiting this year. I'm sure it will be a good show nonetheless - Chord is there, MrSpeakers, Cypher Labs, Audeze, Audioquest, Headamp. Manley has a booth in the headphone area; I'm excited to listen to their very interestingly designed headphone amp.