> My sound card is not configured on boot, but I believe it is listed as
> being supported by NetBSD (maybe it's a newer version card?)
> ...
> Ensoniq AudioPCI 97 (audio multimedia, revision 0x02) at pci0 dev 11 function 0 not configured

The "97" means you have a card based on the ES1371 chip, which is not
currently supported by NetBSD.  The eap driver supports only the ES1370.
-- 
Andreas Gustafsson, gson@araneus.fi