TOA C-001T Control I/O Expansion Module for 9000 SeriesThe C 001T is a Control I O expansion module designed for use with the 9000 Series amplifiers and can provide up to 8 channels each of input and output expansion. Since the main unit has 4 preinstalled inputs and outputs each, the control input and output can be expanded to up to 12 channels each when the C 001T is used. Eight Assignable Control Inputs for Remote Volume, Event Selection and Channel Mute Eight Assignable Control Outputs for activating