Your MacBook Pro should have a digital out via the mini-headphone jack on the left side near where you plug in the power. You have to get a cable or an adapter that goes from mini-toslink to toslink to connect to your DacMagic.
I actually have the MF V-DAC, and have used both USB and the mini-toslink connection. I do not notice a difference, but I wouldn't expect to since my source (ALAC) is from the CD, so it will always be 16/44 and come out the same through either connection.
I actually have the MF V-DAC, and have used both USB and the mini-toslink connection. I do not notice a difference, but I wouldn't expect to since my source (ALAC) is from the CD, so it will always be 16/44 and come out the same through either connection.