Owner's Manual

AtlasIED.com – 12 –
Specifications are subject to change without notice.
Owner’s Manual
AA120G & AA240G
Commercial Mixer Amplifier
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Rear Panel
9. Inputs 5 & 6
Inputs 5 & 6 consist of a pair of stereo summing, line level inputs. Connect unbalanced audio outputs here such as CD
players or audio from DVD players. Input 5 has a fix Input Sensitivity of 300mV. Input 6 has a selectable sensitivity via a
Dip Switch #1 on Switch B.
10. Remote Mute
Shorting the Remote Mute terminals will mute the inputs that are assigned in Switch B to receive the 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 Mute terminals are
shorted together. This connection is usually done via remote switch on a microphone. Note: Input 1 cannot be muted.
11. Remote Level Control
Remote location of the level control can be accomplished via the VCA control port and a 10K potentiometer. You can control the overall
level (Master) or just Input 6 (Music). It is very common to only adjust the music level in a system. Paging levels rarely need to change.
This selection is made on Switch “B”, via DP SW #2 VCA. Connect the two leads from the optional remote volume control to these
terminals. We recommend using a AtlasIED AAVC-10K or a WPD-VC10K part. If not any 10KΩ pot will work.
Remote Level set up - set the system’s maximum levels using the amplifier level controls and then use the remote VCA potentiometer
as an attenuator from the maximum levels set. See the VCA setup illustration for instructions on wiring the potentiometer. Note: The
remote level control is POST (after) the Master and Input 6 Level Controls. VCA wiring will depend on the wiring of the potentiometer.
You may need to reverse the wires on the VCA port to achieve the level control rotation direction.
12. Zone 2 Output
Zone 2 Outputs are used to feed a secondary zone such as lobby, restrooms, bar or outside area’s. There are two types of outputs
needed to meet the design requirements. A 600Ω line out is provided to feed a telephone Music ON Hold application or to feed a
second amplifier that can power multiple speakers. The second option is an amplified output to power a signal speaker. Each input has
a selection switch to assign it to the Zone 2 Output. When selected the input will feed both the 1W amplified output and the 600Ω line
output. Note: When an input is routed to the Zone 2 Output via Switch C, it is PRE (before) the input channel level, Master level and the
remote level. It is important to set your source gains to achieve the desired Zone 2 level and the main system level of Zone 1.
• Zone 2 Output – 600Ω
The 600Ω 1.5V max (Zone 2 Out) output is typically connected to a PBX MUSIC ON HOLD port, also known as MOH. Can also be
connected to a second amplifier input.
• Zone 2 Output – 1 Watt 8Ω
The 8Ω 1W Zone 2 output can drive an external 8Ω speaker.
• Zone 2 Level Control
Potentiometer adjusts level for both Zone 2 outputs.
1
Input 6
On
Off
2
Input 5
On
Off
3
Input 4
On
Off
4
Input 3
On
Off
5
Input 2
On
Off
6
Input 1
On
Off
To VCA Terminals
Switch C