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
13
QUICK START EXAMPLES
Example 1 — System Paging, BGM, and MOH with Remote Master Level Control
This application has the paging microphone into INPUT 1, BGM (CD player) into Input 2, and a Message
Repeater or MOH into Input 6. The Zone 2 Output is sent to the telephone system's MOH input port. A
level control is placed in another area such as a front desk to adjust the system’s level without having to
go the equipment room. When a page comes through Input 1, the BGM is muted allowing only paging to
be heard through the main system. The MOH is not affected during the page.
• Connect a paging mic to INPUT 1. Set Dipswitch "B" #6, "Input 1" to the "Mic" position. Note: The
INPUT 1 Trim and Sens will need to be adjusted after all the settings and connections have been
set.
• Connect a BGM (CD) player to INPUT 2.
• Set Dipswitch "A" #6, "Mute Rcv" to the "ON" position.
• Connect a Message Repeater or MOH device to INPUT 6. Note: The input gain of this channel may
need to be change for proper level balance. Dipswitch "B" #1, "Input 6" allows you to select between
a 100mV or 300mV input sensitivity. Turn down channel 6 gain control on the front panel.
• Connect Zone 2 output to the MOH input on your telephone. Adjust the Zone 2 Output level as
needed.
• Connect a wall mount volume control (Atlas p/n AAVCC-10K) to the terminals marked "VCA". Set
Dipswitch "B" #8, "VCA" to "Master".
Dipswitch Settings
Dipswitch 1 - Off (Set To The Required Gain) Dipswitch 2 - Off (Not Affected)
Dipswitch 3 - Off (Not Affected) Dipswitch 4 - Off (Not Affected)
Dipswitch 5 - Off (Line) Dipswitch 6 - On (Mic)
Dipswitch 7 - Depends On Mic Type Dipswitch 8 - Master
Example 1
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
To 70V Speakers
To PBX
Page Port
Remote Wall Mounted
Volume Control
From BGM
CD Player
Message Repeator
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Paging Mic
For Unbalanced Wiring,
wire Tip to +. Wire shield
out and (—) together with
a jumper wire.
BA