The EQS560 has an auxiliary input so you can adjust not only your head unit, but also another source, such as a portable MP3 or CD changer, with adjustable gain and balance control for the aux input. There are also a number of subwoofer controls, including an independent subwoofer volume control (0 to 12dB) and low pass filter. The selectable frequencies for this low pass filter are 60Hz or 90Hz. There are 7 volts available for the six channels of RCA line level outputs. The operating specs and diagrams are painted right on the top surface of the unit.
