ok...

I'd like to know if I fumez le crack! Is there any way to adjust the
gain on any HDSP inputs via alsa? I know there exist simple controls,
which control the output volume and the mixer controls which handily set
the volume between any input and output.... so what about input? The
mixer in winbloze seems not to adjust input level either? Is this a
firmware issue? Do I need to get an 8-channel pre-amp in order to adjust
the signals into my multiface?

d!
-- 
Don't ever take a fence down until you know the reason it was put up.
        - G.K. Chesterton