Digital sound transmission doesn't necessarily perform better than analog sound cables. The best performing sound transmission methods are still analog. Balanced analog cables are used with the most professional equipment. (Although no one expects XLR ports on a laptop. That would be silly).
That said, even if the ProMedia accepts SPDIF input, you wouldn't want to use it except for watching DVDs. When games are decoded, the format isn't one that a preamplifier can decode. It will either have to be re-encoded to AC-3 (something most computers can't do, dunno about the 8890), or multichannel information will have to be dropped and the signal will be passed as stereo PCM. In short, most of the time you will want to run analog cables from any computer to a preamp. That is, until Firewire take off as a ubiquitous audio transmission method.
That said, even if the ProMedia accepts SPDIF input, you wouldn't want to use it except for watching DVDs. When games are decoded, the format isn't one that a preamplifier can decode. It will either have to be re-encoded to AC-3 (something most computers can't do, dunno about the 8890), or multichannel information will have to be dropped and the signal will be passed as stereo PCM. In short, most of the time you will want to run analog cables from any computer to a preamp. That is, until Firewire take off as a ubiquitous audio transmission method.









LOL - if we buy a 2nd lappy from them as well



).
.
.


