Sinbosen audio processor have 4 inputs and 8 outputs, 3 inputs and 6 outputs, 2 inputs and 6 outputs dsp digital processor. The front panel interface allows quick access to all control parameters by offering dedicated function buttons,eliminating the need for hidden sub-menus. For even faster set-ups and stronger visualization of Input/Output routing, EQ, and Filter curves, a USB port is provided for use with Software.Full control by third party controllers is also available via RS-232.