The oem version of Audigy uses colored plastic connectors instead of the golden metal connectors found in the retail version,
however, there are no difference in the card itself as well as no difference in parts been used to make the card.
Audigy is a pretty good card consider at least creative will provide driver support for most os and the sound quality at least
is to par with MX300...actually sb live value has really bad sound quality and regular sb live is better but not by much..
anyway..their sound qualitis are inferior to MX300 or SQ2500..(less bass, less treble, less mid range, less details, and overall
the sound is more dead and clouded)
Audigy improved a lot in sound quality and the 3d positioning is better than the original live..but when using headphone or
two speaker setting..au8830 still out perform it by quite a fair margin..
I guess 1394 is a nice touch and not a bad thing to have..
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If you can read chinese..here is a good site that focus on digital audio and sound..
http://www.dearhoney.idv.tw