The different setups of patchbays makes it possible to use all sorts of different
equipment however you use it. There aren't really "advantages" and "disadvantages" but
just different setups for what you need.
For example, I designed a patchbay for
a friend who had multiple synthesizers. If the synths were just going to be plugged in
straight to the mixing board, then normalled would be fine. However - we are hooking up
all of the CV inputs - and have a Sherman filterbank that he will be routing things
through as well. For this set up, non-normalled was best since we can plug any output into
any CV input, route whatever we needed through the Moog filter or the Sherman filter and
throw it to any output.
Though, the articles linked above clearly explain the
differences excellently, so I'll just let those shine!
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