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The Pro Co FATRAT is a premium distortion pedal featuring selectable MOSFET clipping circuits that deliver both the legendary RAT distortion tone and a new FAT mode for thick, aggressive overdrive. Built with a socketed op-amp design for easy tone customization, this pedal includes a powerful boost distortion section and 1/4-inch audio connections. Perfect for players seeking vintage RAT character with modern versatility. Powered by 9V battery (included) or standard pedal power supply. Selectable MOSFET clipping circuits with stock RAT mode for classic distortion tone or FAT mode for thick, aggressive overdrive Socketed op-amp design allows easy swapping between stock OP07DP and other popular chips for tone customization FATRAT also includes a socketed op-amp, which allows users to easily change between the stock OP07DP and other popular chips Classic 1/4-inch audio connections with intuitive knob controls for easy tweaking on stage or in the studio Runs on 9V battery (included) or standard pedal power supply for maximum portability

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