This LED will light up when the Talk Back Mic is activated.
Press down this button to activate Talk Back Mic. Press again to release
it and disable Talk Back Mic.
Four headphone output jacks.
Power LED will light up when Matrix Y is turned on
There are four volume control knobs to adjust the corresponding
Plug the attached power adapter (15 VAC 1000mA) here for supplying
Line level signal output, left channel.
Line level signal output, right channel.
Line level signal input, left channel.
Line level signal input, right channel.