I just stumbled across an old thread from late 2019 Low signal from AES output of H9000R and no ADAT, in which it was said “The setting for the digital audio mode is there because some resources are shared between the various digital audio interfaces, so it seemed simplest for users to decide on one they want to use. Specifically, receivers are shared between the AES, XLR and SPDIF inputs so you can’t run all of those at the same time. However, more flexibility is possible than we currently offer the user. For example, ADAT is routed separately from the other digital IO, so you could use all 8 ADAT channels and all 8 AES channels. Or you could use XLRs and some, but not all, of the DB25 channels. We are planning to re-think this in a software update”.
So, does this mean a future update will allow simultaneous use of both AES and ADAT? I was disappointed at the time I got my H9000R in December 2025 to discover this was not possible. This is why I forked out the extra money just a few months ago to get the MADI card plus a MOTU 112D. In addition to the ability to using more than one digital input at a time, I hope this would also include a sample rate convertor, something which my MOTU 112D lacks (the 112D is a digital only audio interface which has AES, ADAT, MADI COAX and AVB).