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User manual (GGM IPAPxxx)
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4.2. REAR PANEL
01. AC power input.
02. The ports for speakers connection. COM stands for common port, connectable with negative
pole, ground wire, etc. 4~16 port is connectable with 4~16 constant-resistance speakers. 70 V
port is connectable with 70 V constant-voltage speakers. 100 V port is connectable with 100 V
constant-voltage speakers.
03. Signal output port of volume control.
04. Signal input port of volume control.
05. Mute potentiometer, turn the knob to the rightmost, the mute level is the maximum; and turn the
knob to the leftmost, the mute level is the minimum.
06. Aux audio source input.
07. EMC input port.
08. Line output port.
09. RJ45 network interface, connecting with the internet of PC host/ Ethernet/switch.
10. Cooling fan.
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