Which one is better? They both connect with a PCI card. The 192 has 12 mic preamps. ($1800) The 24I/O has 24 inputs, but are all 1/4" inputs. ($1400) Would it be better to get the 192 or get the 24I/O with a standalone rack set of mic preamps (for about $400-$600)? I need 12 mic preamps, but I would like to know the difference between these two. i.e. if the 192 has better preamps than I can get for $600? if the 24I/O has a better inferface and A/D/A converters than the 192? etc.