I do notice that op amp has 5 volt output. I might have to try this out. I once had
read an article where maximum pc shot it down in direct comparison with the x-fi, so I didn't think much of it.
Soundcards - Maximum PC
edit. uh oh. after rereading the article, I think my opinion stands.
it has the potential to be better, but it obviously hasn't got there yet. 5 volt output can make it sound better to most people because louder is better to most. but in reality, louder is only better when everything else is considered equal