I do know, that the original versions of the AVM-20 that shipped, did need their chips (EEPROMS?) changed before it could accept the ver 2.0 software. Now, they are all shipping with the newer chip.

So, maybe we can call the Ref 50 an Anthem clone...

(Both based on Moto chips.)

A question: are there any newer pre/pro's with SHARCs? Or just receivers? (Denon's and Sony's come to mind.) The Sony TA-E9000ES had SHARCs, but I can't honestly think of a current model pre/pro that has them.