Actually there are 4 possible settings on the H9K – Auto/56, Auto/64, 56 & 64. I guess I can experiment tomorrow when the expansion card arrives unless someone from Eventide responds tomorrow with a definitive answer.

I assumed the Auto settings were the 96K framing modes that switch between single and double speed. That would mean the 56/64 settings would be fixed single speed (44/48) since the H9K doesn’t support SMUX/legacy mode per Eventide. However if bsfreq is using 64 and switching to 96k, then I have no clue what these settings represent.