Toa A-1803 User Manual

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This figure represents the A-1812.
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This figure represents the A-1812.
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[Rear]
[Front]
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4. NOMENCLATURE AND FUNCTIONS
1. Power switch
Press to turn ON the power.
Press again to turn the power OFF.
2. Power indicator
Lights green when the power is switched on.
3. Microphone volume controls [MIC 1 – 3]
Adjust the microphone level.
4. AUX volume controls [AUX 1 – 3]
Adjust the AUX level.
5. Bass control
Adjusts bass response. Rotate clockwise to
increase bass output, and counterclockwise to
reduce it. The center position provides flat
characteristics.
6. Treble control
Adjusts treble response. Rotate clockwise to
increase treble output, and counterclockwise to
reduce it. The center position provides flat
characteristics.
7. Zone indicators
Light to indicate the broadcast zone (zone1, 2)
selected with the Zone selector switches.
Both Zone selector switches (8) are turned on
(their indicators are lit), even if off, while the
EMERGENCY or TEL control input terminals
(18) remain shorted.
8. Zone selector switches
Select the desired broadcast zone. Pressing the
ZONE 1 switch allows the ZONE 1 output
terminal (16) to output signals. Similarly,
pressing the ZONE 2 switch allows the ZONE 2
output terminal to output signals.
9. Master volume control
Adjusts the overall signal level.
10. LED level meter
Indicates an output level.
11. Emergency indicator
Lights red when the unit is in Emergency mode.

Toa A-1803 Specifications

General

Brand	Toa
Model	A-1803
Category	Amplifier
Language	English