AtlasSound.com
– 8 –
Owner’s Manual
AA30PHD
30W Mixer Amplifier
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800.876.3333 • Fax: 800.765.3435
Rear Panel
7. VOX Mute Sensitivity Control
Input 1 signal can be used to trigger or activate a mute command. When an input is set to Mute Receive via the corresponding DIP
switch, the input associated to the switch will be muted when a signal is applied to Input 1. The VOX Mute Sensitivity Control adjusts
how sensitive the mute circuitry from Input 1 reacts. Setting the control fully counter-clockwise will lower the sensitivity, where a
higher amplitude signal will be required at Input 1 to trigger the mute send circuits. Fully clockwise will raise the sensitivity of the mute
circuits, where a lower amplitude signal will trigger a mute send. Calibration of this control in conjunction with the microphone to be
used is very important to assure the proper amount of signal from the mic is enough to trigger the mute circuits. If it is not calibrated
properly, the mute may not be triggered when a weak voice vs a strong voice uses the mic.
8. Zone 2 Output Port
This terminal provides a 600
Ω
unbalanced output that is typically connected to a PBX music on hold port, also known as MOH. Inputs
are assigned to the Zone 2 bus via switch associated with the input.
Note:
10k
Ω
output impedance is available via the internal shunt
selection.
9. Zone 2 Output Level Control
This control will vary the level at the Zone 2 output terminals. Fully counter-clockwise (0) is Off, fully clockwise (10) is the maximum
output level. The Zone 2 level control is PRE Inputs 1, 2, 3 and 4 volume controls.
10. Multi Function DIP switch
Understanding the functionality of the DIP switches is key to maximizing the versatility of the AAPHD Series. When a switch is in the
up position, the function is “OFF or assigned to the feature stated”; when a switch is in the down position, the function is “ON or
assigned to the feature stated “.
•
DP SW #1 - Zone 2 Assign Input 3
- When “ON”, Input 3 signal will be routed to the Zone 2 Output terminals. The signal
routed is PRE the front panel level control.
•
DP SW #2 - Zone 2 Assign Input 2
- When “ON”, Input 2 signal will be routed to the Zone 2 Output terminals. The signal
routed is POST the front panel level control.
•
DP SW #3 - Mute Receive Input 3
- When “ON”, Input 3 signals will be muted if a signal is present on Input 1 or if the
Remote Mute Terminals are shorted together.
•
DP SW #4 - Mute Receive Input 2
- When “ON”, Input 2 signals will be muted if a signal is present on Input 1 or if the
Remote Mute Terminals are shorted together.
•
DP SW #5 - Input 1 Phantom Power
- 24VDC is active when Input 1 is set to Mic mode and the switch is in the ON position.
Note:
Only use this feature if you are using condenser microphones, otherwise leave in the “OFF” position.
•
DP SW #6 -
When in the “MIC” position, Input 1 will accept microphone level signals; when in the “Line” position, Input 1 will
accept line level or telephone signals.
11. Amplifier Outputs
For loudspeaker connections, connect as follows or proceed to the setup section for typical wiring schemes.
•
COM
- Speaker common or negative connection
•
4
Ω
- Connect to direct coupled loudspeakers
•
25V
- Connect to transformer coupled loudspeakers
•
70V
- Connect to transformer coupled loudspeakers
12. Power Cord
Connect this grounded power cord to 120VAC circuits only. Serious damage may result otherwise.
13. Ground Terminal
Connect this terminal to electrical ground as required by local codes.
Signal
Peak
Limit
Power
PHD
3
5
6
4
3
2
1
9
0
10
8
7
2
5
6
4
3
2
1
9
0
10
8
7
1
5
6
4
3
2
1
9
0
10
8
7
AA30PHD
Professional Mixer Amplifier
Power
120V AC 60Hz 90W
Treble
Bass
1
Input 3
Off
On
2
Input 2
Off
On
3
Input 3
Off
On
Zone 2 Assign
Mute RCV
Input 1
4
Input 2
Off
On
5
Phantom
Off
On
6
Line/Tel
Mic
Chan 2
Chan 3
Sum In
Sum In
G –
RMT
Mute
+
–
+
VOX
Sens
Channel 1 - Input
Level
–
+
Zone 2 - Output
– +
600
Ω
CLASS 2 WIRING
COM 4
Ω
25V 70V
Amplifier Output
PA Amplifier
Model AA30PHD
Output Rated 30W
Designed and Engineered
by Atlas Sound
Made in China