11
[Left Side]
19
17. Remote master volume adjustment terminals
Removable terminal block (5 pins).
Release voltage: 24 V DC or less.
The unit’s master volume control can be remotely
operated by connecting an external resistor to
these terminals.
(See p. 16, "Remote master volume adjustment
terminal connection.")
Note
Use a 10 kΩ variable resistor (B curve) for the
external resistor.
If the resistor’s resistance value is small, the unit’s
sound level will be reduced, and if the resistance
value is large, the sound level will be increased.
18. DIP switch
Used to select the input sensitivities of Inputs 1
and 2 and the output impedance of the speaker
terminals.
• Switch1
Selects Input 1 sensitivity.
UP: LINE
DOWN: MIC
• Switch2
Selects Input 2 sensitivity.
UP: LINE
DOWN: MIC
• Switch3
Not used. Leave this switch in its default position
(UP).
• Switch4
Switches the speaker output between low and
high impedance.
UP: Low-impedance
DOWN: High-impedance
Note
All switches of the DIP switch are factory-preset
to the UP position.
19. Fan
Exhaust fan.
Note
Avoid blocking the fan, as this could result in unit
failure.