So I was thinking of getting a line driver to interface between my computer
and amplifiers, because the sound card output is rather low and, on my sub
amp at least, the gain is at the max (and I could afford to go a little
higher with it). However, I evidently have an S/PDIF output on this
computer, so I'm wondering if there's a decent, cost-effective S/PDIF
solution. I know nothing about S/PDIF. How on earth does the volume
control work for such a protocol?

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Mark
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