mac mini not recording 96khz


I am trying to do 24/96 vinyl transfers using a Behringer SRC2469 as an ADC going into the mini toslink input of a mac mini. I go into Audio midi to set the input to receive 96 khz, but mac automatically reverts the setting to 48 khz. If I connect the output of the Behringer to my Monarchy NM24 via toslink, the Monarchy recognizes the 96 khz with no problem. Any help is appreciated.
dbel
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I have Sound Studio 3 recording software. It needs to be set to match Audio Midi or else the recording is distorted. It works fine at 44.1 and 48.
I tried to use the same behringer device for a to d conversion as well. No matter how I configured it I could not get 96 khz to the mac. I gave up and bought an apogee duet which works perfectly. I never figured out why the behringer would not work with the mac at 96. I wonder if it has to do with the toslink input of the mac. The duet is firewire.