UADE is pretty much the best when it comes to authenticy. It even emulates the lowpass filter. You can use -outpipe option to output 16bit 44100 Hz raw sampledata. This can be converted to AIFF or wav for CD track saving.
This is what I use to convert some modules to mp3's under MorphOS:
uade big:modules/mod.KnullaKuk -outpipe 1 | lame -h -r IN: t:KnullaKuk.mp3