Mackie ProFX12 Professional Compact Mixer 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 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