Hi Stacey,
I think you found a solution since you posted this but if it can help anyone :
It's technically possible, but Presonus didn't make it easy.
First, plug your Studio 1824(c) into your computer with USB and download the Universal Control Software and clic on the image of the interface to open the control mixer.
The eight ADAT outputs are physically outs 11 to 18 and are maped as stereo Left-Right pairs in the Universal Control software (ADAT 1-2, ADAT 3-4, ADAT 5-6, ADAT 7-8)
Each pair has it's own personal stereo mix.
So the only way I found for using it as a converter is to set up the mix of each pair to "monitor" each mic/line input into the corresponding ADAT out by hard panning them left and right :
- In the mix for ADAT 1-2 : Input 1 Left, Input 2 Right, both faders to 0dB and all the other channels faders to -inf
- In the mix for ADAT 3-4 : Input 3 Left, Input 4 Right, both faders to 0dB and all the other channels faders to -inf
- In the mix for ADAT 5-6 : Input 5 Left, Input 6 Right, both faders to 0dB and all the other channels faders to -inf
- In the mix for ADAT 7-8 : Input 7 Left, Input 8 Right, both faders to 0dB and all the other channels faders to -inf
The additionnal tricky thing is that, to my knowledge, these settings are not stored into the interface itself, but only in the Universal Control software. So you might need to keep the 1824(c) plugged with USB into your computer to keep the settings that way, even if you use an other device as the main interface
Hope this helps.
Sam