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...Also, the signals of two microphones, two guitars, and one mp3 device will be inputted into and passed through two 3-band programmable equalizers. All of the processed signals will pass through and be amplified by a clean master volume controlled power amp. The digital effects will be toggled by means of a floor panel controlled by digital foot switch controller communication with the Arduino hardware via a digital cable. Also, the preamp signal can be alternatively connected to a separate power amp.