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A place to share resources and experiences for 'mono' Purifi 1ET400A builds, regardless of the number of channels in the case. The existing thread is already very long, and mostly about stereo builds, especially (but not exclusively) based on the Purifi EVAL1...

On Jan 5, I will have a spare input buffer board. It is unused except to confirm that it is operational and works normally (<5 minutes). I bought it for a special project that I have now decided not to do. Before I add amp channels and make it into yet another amp that I don't need (I have...

Just giving us a place to share what we learn about these. Examples of what I hope we will have here are features of the front end board and how best to use them, case options, best practices, etc.. On the FE board: how to wire from the Hypex SMPS1200A400; how to use the standby control...