Checking out this variant of the Snark Barker MCA project! This card from TexElec recreates the exceedingly rare Creative Labs Sound Blaster MCV for IBM PS/2 Microchannel PCs. Proper 44kHz PCM sound and AdLib support on a PS/2 Model 90 XP 486, nice. Here's where I bought mine, plus more info and a helpful tutorial video: