I know this thread is ancient, but the right guys were here then and hopefully now too!
Having bought an S32 for one of our X32 desks, I decided to try my two S16s and an ADA8000 that had been knocking around for a few years to set up the proverbial digital snake for small analogue mixers.
I set up just as it said with FOH S16 set to Master / ST2 + ADA8000. It worked but masses of hissss as if I was amplifying very little gain.
Although I could appear to adjust the gain with the master at FOH, it didn't actually change anything. The gains were not available on the stage unit working as a slave. After a lot of chopping and changing and fiddling I set the stage S16 to 'Master' and the FOH S16 + ADA8000 to standard or something else anyway.
With the STAGE S16 set to master it showed Gains on -2.5 so swung them all up to 27.5, and (wow!) MASSIVE perfectly CLEAN sound, returns worked fine too, testing with just main outs from ancient mixer to a couple of HK powered cabs.
Of course Gains / Phantom power etc can only be adjusted at the stage end. SO...
...what have I done wrong please guys!