[PSP]

It's 60 feet from my computer to the preamp and there is no option to move the computer.  I'm considering the following:

iMac-> short USB-> HAGUSB-> 60ft S/PDIF cable-> Audiosector DAC-> 2ft interconnects-> preamp

S/PDIF cable will be Blue Jeans Belden 1694A

Any suggestions or concerns?

Many thanks,
Peter

[poty]

I don't think it is possible. The HagUSB uses rather common IC for S/PDIF, so it shouldn't be too different from the common devices. I think in your case it is better to use some version of multimedia device with WiFi or something other connection (between your computer and the device).

[hagtech]

Sixty feet should be ok.  As long as the cable is good. 

jh

[poty]

Let not agree with you. See for example:
http://en.wikipedia.org/wiki/S/PDIF

It's not related to cable really, mainly for jitter and "long lines" for high frequencies. I tried about 15 meters (around 50 feet) cable and it seems that there were spurious out-of-sync phases.

I know that for some gear it works though. I think it depends on implementation of specific S/PDIF input. You can easily try this for your device - just connect a computer's S/PDIF output to your device with the cable you wish and listen to the result. You can also connect two computers with the cable and play a PCM file on one of them together with recording from the S/PDIF input on another. Then compare the two files (with some degree it can be done with OS utilities for comparing files).