I'm afraid I'm not such a purist (and my ears are getting older, as am I ...), I usually go for max compatibility.
So that means a SB16 ,SB pro or SB compatible.
I only will switch to something else if a game gives me troubles, not for sound quality.
If you are somekind of purist (nothing wrong with that, each his own I would say) you should take a look@
http://vogons.zetafleet.com/viewtopic.php?t=16974
Last time I've tried that was with dosbox 0.70, had some good results with games that support GUS.
Been too lazy to try it out on 0.73, even don't know if you need this in 0.73 as there were some major improvements in the latest dosbox release.
Try it and let us know .......
