Mackie Mix12FX 12-channel Compact Mixer with Effects 12-input Desktop Mixer with 4 Microphone Preamplifiers, 4 Stereo Channels, 3-band Equalizers, Tape I/O, Separate Volume Headphone Levels, and an Effects Bus with 12 Onboard Effects Product Features: A high-performance, 12-input desktop mixer with onboard effects 4 mic/line input channels includes switchable phantom power Each mono channel also features a 3-band EQ and highpass filtering 4 stereo channels offer a choice of balanced and unbalance line input for FX send on each channel lets you pass signal to the dedicated effects processor 12 onboard effects let you add space, depth, and dimension to your mix Tape RCA I/O offers additional signal routing options Separate Main Mix and Headphones/CR volumes provide added mixing flexibility Built to Mackie's toughness standards for portable use