The modules were the UcD400, no more information available as the units were loaner from one local builder. Usually he goes for the best quality PSU that he can get but cannot confirm this at least for now. Have also tried Bel Canto smaller monos and the Apoll M-1.0 mono blocks with extra PSU having the B&O ICEpower modules and those have the same issues noted.
My opinion is that the be-drivers are at passive configuration very easily driven badly and leading to sharp, clinical and harsh sound. This has been true for all class D amps I have tried with these speakers. In fact, there are only few transistor amps that would use with my NS-1000M's for when it comes to listening music. The same applies with the cap updated XOs. About the active setup I have no experience