I soldered on the new crystal last night, and the daughterboard fit just fine afterward.
I have mixed opinions regarding the finished product though. As if the obstructing crystal was not a big enough indication, it becomes very apparent that MediaVision cancelled their DB-use intentions when you find yourself changing the MIDI volume with the "PC Speaker" mixer slider. I even tried the Pro3D mixer, which retains backwards-compatibility, but still omits any wavetable mention when used with a PAS16. Weird, but it works.
My biggest issue is with the mixer chip, an upgraded MVA-508B
. The original PAS16 508 mixer maintains AdLib and SoundBlaster volume-level compatibility, whereas this new chip requires additional tweaking. I've noticed that this B-revision chip was not used in production very long...
I've read through numerous USENET posts regarding the Pro AudioStudio16XL card, and how it remained unreleased due to hanging MIDI notes. Speculatively, this was because of a limitation with the PAS' MVD101 chip, however, my SB16 has this problem, and I think the resolution came with changes made to the daughterboards, rather than the host cards - the point of this being that I've not experienced any MIDI dropouts using the PAS/DB combination, thankfully.
(Interestingly, I have a version of the Pro AudioStudio with two sets of 20-pin headers, which I believe would have been used for the Korg DB, perhaps making this one of the 16XL cards.)
In the end though, what a rare combination, and a perfect fit with my gaming PC. A MIDI DB on a PAS16... that's almost