If your performance car audio system is designed for maximum sound quality and maximum control, then the FOUR.1i is the car audio processor for you. Designed to be the world's first professional quality in-dash equalizer, the FOUR.1i bodes such features as 13 volt signal capabilities, a master volume control, and auxiliary inputs for secondary sources.
In addition, five equalization controls give just the right amount of control for the user. AudioControl's line of in-dash car processors offer features and functions that allow you to adjust and tweak your performance car audio system from the convenience of the driver seat. Included are features like equalization, electronic crossovers, master volume control, high voltage line drivers, and speaker level inputs.
