I think it’s the synergy 5050 poweramp
I wonder why the LXII was never released. That video is from 2012.
the new synergy 5050 poweramp is designed by Fryette and it looks like the lx2.
http://synergyamps.com/shop/hardware/syn5050
I just bought a syn1 on reverb and the seller had all the synergy system (combo, head, and all the modules) but wasn’t particularly happy with the 5050 poweramp.
I’m thinking I should start profiling the synergy preamps and use them with my tube power amp and see how they compare.