when using the RME hammerfall card in the 96K setting you loose part of the bandwidth of your optical ports... so instead of getting 8 channels of
adat I/O in 48K mode.. You only get 4 channels of ADAT I/O in 96k mode... and
If you are trying to get a solid set of 96k 8 tracks of full ADAT signal, you will need 2 96/52 cards instead of one....