Professional 12-channel compact mixer with onboard effects and USB I/O * 6 low-noice, high-headroom Mackie mic pre-amps with easy LED metering * 32-bit RMFX(TM) processor with 16" "Gig-Ready" reverbs, choruses and delays * Precision 7-band graphic EQ for tuning Mains or Monitors * USB I/O for recording shows and music playback via Mac or PC