Long ago, ANK and Audio Note were more closely affiliated. Now, the kit company makes electronics based on Audio Note designs and uses the parts thaat Audio Note sells to the public. I don't believe they have access to the highest grade transformers.
Jaytor,
All of your builds look fantastic and well thought out. I like the ANK 300B amps with the nekkid output transformers (looks better than potted trannies to me). A local dealer who builds his own house brand of electronics built an amp with real Audio Note parallel 2a3 trannies (silver wire primaries and secondaries) that he bartered with Peter Qvortrup to obtain. These clone Kageki amps sound very good, although they did not look as nice as your amps.