On-stage or off, the ProFX Series Compact Effects Mixers with USB offer the most complete and professional feature set in the compact effects mixers category. Mackie low-noise, high-headroom mic preamps ensure pristine signal while LED metering and 60mm faders on each channel keep levels in check. Sweeten the mix using the 3-band active EQ and integrated RMFX[TM] 32-bit processor, which offers an arsenal of 16 "Gig-Ready" effects. Easily tune mains and monitors with 7-band stereo graphic EQ and capture the mix or stream house music from a laptop using built-in USB I/O. Also, in true "Built-Like-A-Tank" tradition, protective ABS sidecheeks offer additional impact resistance to the already rugged solid steel chassis. It's everything you need to get the job done well, every single time. Simply professional-ProFX.