The ART MacroMIX is an ultra compact 4 channel utility audio mixer designed as a solution between line-level audio devices and recorders, powered monitors etc. The MacroMIX features 4 input channels with individual level control. Channels 1 and 2 feature dual mono RCA inputs, channel 3 features dual mono and a single 1/4" input and channel 4 features a single 1/4" input. Dual mono RCA line outputs are provided, and a 1/4" mono headphone out also doubles as a secondary line level output when necessary. The MacroMix is powered with a 12V DC power supply (included). 1/4" and RCA Inputs The MacroMIX features 4 channels. Channels 1 and 2 feature dual RCA inputs, channel 3 features dual RCA inputs and 1/4" phone input, channel 4 features a 1/4" input. Headphone / Line Level Output A 1/4" stereo phone headphone output doubles as a stereo line output for added flexibility.