Gryphon Encore vs Gryphon Antileon Sig.

I know there arn't alot of these out there but was hoping someone has experience with both and could relate the differences between the two.
I currently have the Encore (love it) and am wondering if an up grade to the Antillion would be worth it.
Thanks in advance.
I have the antileon sigs and they are truly great.What really jumps out is the low level detail and the three dimensionality.My experience is that these come from the pure class a set up, however,dont invest that much money without hearing this for your self.
Thanks for the reply Al. Did you happen to compare the Antileon's to the Encore before buying? Was wondering if the two amps shared a "house" sound with the antileon at a higher level.