Anotherbob is confused. The Purifi module has a nickname of Eigentakt. That is all. They are one in the same. Bruno’s last version of his amp circuit was called Ncore and is manufactured by Hypex. When he formed his own company he needed a new name for his latest version of his amp (so he used this German word for his new circuit).....therefore Purifi is the name of his company and Eigentakt is the nickname or name of the Purifi module that this thread is about. Most people, including myself, refer to the Purifi module as the "Purifi module" (no Eigens mentioned).....hence some peoples confusion.
https://purifi-audio.com/eigentakt/I keep repeating that all Purifi based amps will sound different. It is not a magic bullet.....no one thing is. Just another class D circuit that sounds slightly better than the NC500 but can be tweaked to sound really fantastic.
There is a more powerful Purifi module under development. After it comes out we will probably then be saying ET400 or ET700 or 1200 or whatever it is to differentiate between the two. Right now there is just the one and only Purifi module (1ET400A......which stands for Eikentakt circuit with 400 watts/mono amp).