Brian Smith and David Cope represented Audio Note kits.  They brought several kits and parts, including a brand new, yet to be announced mono-block chassis. Audio Note Kits monoblock chassis and DAC kit
Audio Note Kits monoblock chassis and DAC kit
The mono-block chassis (shown above) is designed to be modular.  The one we listened to is essentially one channel of a Kit 1, which is a SET amp that can be configured to use 2A3 or 300B outputs.  A parallel output module can be installed in the chassis to allow for a pair of output tubes to be operated in parallel.  Neat stuff!
 Gobs-O-Goodies in the Audio Note Kits room
Gobs-O-Goodies in the Audio Note Kits room