I have used a couple different versions of the K2Y-PRO16....not a bad card but at loud volumes (set by the utility by default), there is excessive distortion especially being used in windows sound system mode. It is a versatile card though since it is sb pro sb and wss (16bit) compatible along with 3 different cd rom interfaces and has wave table header.
I did try the card on numerous occasions with kings quest 6 on a pentium 166 with sierra patches installed and with caches enabled and disabled but always had the game freeze on me when using wss and my nec xr385 for music and sb for speech. It may not have been the card and could have been some resource conflicts as well but I'm not sure...I just know it happened with two different 486 setups I had.
There's other cards out there like Yamaha ymf 718 and 715 that I prefer that are sb sb pro sb 16 compatible and have wavetable header.