Owner`s manual
Specifications are subject to change without notice
AtlasSound.com
1601 JACK MCKAY BOULEVARD ENNIS, TEXAS 75119 U.S.A. • TELEPHONE: (800) 876-3333 • FAX: (800) 765-3435
©2006 ATLAS SOUND LP Printed in U.S.A. 000106 ATS002187 RevA 01/06 PP
OWNER'S MANUAL
AA120/AA240 MIXER AMPLIFIER
9
14. VCA
Remote location of the level control can be accomplished via the VCA control port. You can control
the overall level (Master) or just Input 6. This selection is made via Dipswitch "B" position #8. Connect
the two leads from the optional remote volume control to these terminals. This remote level control
is POST Master and Input 5 Level Controls. 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 section for instructions on wiring the potentiometer.
15. Remote Mute
The Remote Mute feature is useful when the background system needs to be muted from a remote
location. When shorting the Remote Mute terminals together, (G) to (M), the assigned channels will
be muted. Note: Input 1 cannot be VOX or remote muted at anytime. Dipswitches 2-5 settings
determine which inputs are to receive the Mute trigger. To trigger the mute it is common to use an
external contact closure or switch on a microphone.
16. Zone 2 Output – 600Ω
The 600Ω 1.5V (Zone 2 Out) output is typically connected to a PBX MUSIC ON HOLD port, also
known as MOH. The ZONE 2 output gets its signal from INPUT 6, volume control.
17. Zone 2 Output – 1 Watt 8Ω
The 8Ω 1W Zone 2 output can drive an external 8Ω speaker, and is taken Pre input 6 gain control.
Use the 1W 8Ω terminals for connection to an external speaker.
18. Bridge In/Out
Certain installations have the need to combine one or more mixers together. These mixers may be
in different rooms of an install but have the need to share a page or music throughout the installation.
These terminals provide a way to send and receive balanced line level signals from the internal mix
bus of the AA120/AA240. The "BRIDGE IN/OUT" feature is PRE Tone Controls and Low Cut Filter
The Bridge In/Out feature allows you to send and receive a balanced signal. This is important for
allowing longer distances between the mixers.Note: This function should only be used with other Atlas
Sound mixers that have this feature. The Send and Receive signals are combined through the same
terminals. To activate this feature, see number 19 Bridge Select.
VCA
In/Out
Bridge
Sel
Zone 2 Out
¡
1W 8
¡
600
Remote
Mute
Input 2
Trim
Input 3
Trim
Input 5
Input 6
Off
On
Off
On
Off
On
Off
On
Input 2
On
Off
Line
Mic
Line
Mic
Line
Mic
Sens
Input 1
Input 2Input 3
Input 4Input 5 Phantom
On
Off
Input 6
1
23
4
5
300mV
100mV
6
7
Master
Line
Mic
Mic
Tel/Line
Off
On
Mute Rcv
Input 6
Input 5
Input 4
Input 3
VCA
51
23
4
8
Low Cut
6
Input 1
Sens
Input 1
Trim
Input 4
Trim
Input 5
Trim
Zone 2
Level
B
A
Line Out
Speaker Output 120W
¡
100V70V25V8Com
++
G
+
R
L
Pre Out
Pwr In
Tape Out
Input 6
Input 4 Input 3 Input 2 Input 1
Unswitched Outlet
120V AC 60Hz
Max 500W
Outlet Breaker
125V AC 4A
Push Reset
G
+
G
+
G
+
G
+
+
G
120V AC 60Hz 300W
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CLASS 2 WIRING
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