I had this problem with a ext + sup dac.
Check if something is loose on the 6ch std dac. you could also try the card in the other slot.
Other thing : do you have the procedure to install a new board ? you need to tell the CB2 what new board you are installing.
Check if something is loose on the 6ch std dac. you could also try the card in the other slot.
Other thing : do you have the procedure to install a new board ? you need to tell the CB2 what new board you are installing.