HELP with MAC MINI and PS DIgital III DAC

K. Thanks to all- using USB cable to DAC. Thinking that is problem. High res transfer not happening. Amarra software says can not accept file , then shows 9600 not ok? Read somewhere need to use digital link instead of USB ? But why Rad shack working fine ? Also,PS DAC "upsamples"? So is it not set up to "just play" hi res?

Oh, and Amarra has built in Flac converter thingy to make new iTunes readable files. Hav done this. They will play thru iTunes only. Not thru Amarra. And play at 42(?) vs 96(?) that I prefer and had BEfoRe upgrade?!?

Upsampling and processing and outputting a high res signal are two entirely different things....I really don't think you're going to get high res from the USB port...however, as far as I know the optical will support it.

Good Luck.

Wrap up- seems the ps DAC isn't the right tool for my needs. Wanting to play native hi res files. Thus, unit is for upsampleing files. Plus I've learned standard USB does not support hi res file transfer. So... Back to drawing board and more homework. Gatta' love this hobby! Again-thanks to all who took time/effort to share....(at least I think I got what's goin' on)

Pick up a used hiface USB to spdif converter for around $100. I have compared the USB, optical and hiface with a ps audio dl3 and Mac mini and the hiface sounds significantly better to me. It will play sample rates up to 24/192 as well. USB is limited to 48 on the dl3 and the optical on the mini is limited to 24/96. You can also use some of the free players like audirvana to upsample your music to 24/192 which will be played natively into the ps audio dl3 when using the hiface. Prepare to increase your budget if you want to improve upon the ps audio dac.