Knob: Adjusts master volume
Unit connection: Dedicated 8-core cable (aviation-grade locking)
1x RCA audio input
1x RCA/XLR audio output
3x DIN8P unit ports
EQ button: On/off
Modes: Normal, FIFO, VOICE
Speaker limit buttons: 1/2/4/6
ID setting: On/off
Control interface: RS-232 (9-pin D-sub female)
Power: AC100V~240V (with power button)