Digital live sound console has 64 mic inputs mapped on 24 faders and four banks giving simple access to all channels whilst never losing sight of stereo and FX returns. Like the Si1+ and Si3+ there are four dedicated stereo line channels, four dedicated FX returns from four stereo Lexicon FX processors, 8 balanced insert sends and 8 balanced insert returns. Si2+ is completed with 24 group/aux busses available at all times, 8 matrix busses plus full complement of monitor talkback and main bus outputs. The four 64x64 channel expander slots allow installation of further I/O sources including the connection of Soundcraft and Studer stageboxes. 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.