Digital live sound console has 64 mic inputs mapped across 2 sets of 16 faders with each set of faders having 4 independent banks to offer ultimate in fader layering flexibility. The onboard mic inputs are complimented with four dedicated stereo line channels and four dedicated FX returns from four internal stereo Lexicon FX processors offering full 80 inputs to mix from onboard I/O. Four 64x64 channel expander slots allow installation of further I/O sources including connection of Soundcraft and Studer stageboxes. Eight balanced insert sends and returns are provided along with vast bus count of 24 group/aux busses, 8 matrix busses and full complement of monitor talkback and main bus outputs. Buses may be freely assigned to any of option slots or 32 bus output XLR connectors which exist in addition to dedicated MIX and monitoring output XLRs. Every bus has dedicated 30-band BSS audio graphic equalizer, permanently patched in with no additional drain on DSP resource. Unique feature of Si3+ is inclusion of an analogue input or line-out for every bus, master, monitor and talkback function bar none. A direct out from every mono channel offers simple way to record every channel whether requiring this for later mix-down and production work or to use as virtual sound-check at next gig.