Atlas AA120M, Owner'S Manual, Page: 8 / 28

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. 00106 ATS002179 RevA 01/06 PP
OWNER'S MANUAL
AA120M MIXER AMPLIFIER
8
Dipswitch 5 - Input 6 - When set to the "Mix Bus" position, INPUT 6 signals are routed to the
Mix Bus and are POST Input Gain, POST Zone 2 and 3 Outputs and PRE Tone Controls.
When set to the " Amp Direct " position, INPUT 6 signals go directly to the fi nal amplifi er stage,
and are PRE Input Gain, PRE Zone 2 and 3 Outputs and POST Tone Controls.
Dipswitch 6 - Input 5 - When set to the "100mV" position, the sensitivity of Input 5 is suitable
for inputting Telephone Paging Signals. When set to the "300mV" position, the sensitivity of
Input 5 is suitable for CD/DVD player outputs.
Dipswitch 7 - Input 4 - When set to the "Line" position, Input 4 sensitivity is suitable for CD/
DVD line level outputs. When set to the "Mic" position, Input 4 sensitivity is suitable for
microphone input.
Dipswitch 8 - Input 3 - When set to the "Line" position, Input 3 sensitivity is suitable for CD/
DVD line level outputs. When set to the "Mic" position, Input 3 sensitivity is suitable for
microphone input.
Dipswitch 9 - Input 2 - When set to the "Line" position, Input 2 sensitivity is suitable for CD/
DVD line level outputs. When set to the "Mic" position, Input 2 sensitivity is suitable for
microphone input.
Dipswitch 10 - Input 1 - When set to the "Tel/Line" position, Input 1 sensitivity is suitable for
CD/DVD line level outputs. When set to the "Mic" position, Input 1 sensitivity is suitable for
microphone input.
10. Input 1
Balanced mic or line level signals connect to the (+), (—), and (G) terminals. Refer to the chart at the
top of the page for the following setting. Dipswitch number 10, labeled Input 1 must be set to the
proper position for mic or line level. If you are connecting an unbalanced line level input, tie (short)
the (G) and (—) terminals together. An optional Input Isolation Transformer is available if a ground
loop problem exists. See page 23 for installation. Contact Atlas Sound for more details on the Input
Isolation Transformer.
Vox Mute Vox Mute
Input 5
Level
Zone 3
Level
Zone 2
10 0 10 0 10 0 10 0 10 0 10 0 10 0
G – + G – + G – + G – +
Unswitched Outlet
120V AC 60Hz
Max 500W
Outlet Breaker
125V AC 4A
Push Reset
120V AC 60Hz 300W
100V 70V 25V ¡ 8 Com
24V DC 200mA Relay
+ –
NC C NO
– + + –
Zone 2 Out
1W 8
Zone 3 Out
¡ ¡ 600 Remote Mute VCA
+ –
G
Sel
Bridge
In/Out
Input 6
Level
Zone 3
Level
Zone 2
10 0 10 0
Sens
Input 4
Trim
Input 3
Trim
Input 2
Trim
Input 1
Trim
Mute
10 0 10
0
10
0
10 0 10 0 10 0 10 0
Send
Off
Rcv Send Rcv
Off
Send
Off
Rcv Send Off
10 0
Zone 2 Level Zone 3 Level
Input 3 Input 2 Input 1
Pwr In Tape Out
1 2 3 4 5 6 7 8 910
R
Line Out
L
Input 5 Pre Out
Input 6
Input 4
Zone 2 Level Zone 3 Level Zone 2 Level Zone 3 Level Zone 2 Level Zone 3 Level
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Speaker Output 120W
Vox Mute
VoxMute
Send
Off
Rcv
CLASS 2 WIRING
Vox Mute
Chime Module
On Mic Mic Mic Mic 300mV Amp Dir Vox Input 5 On
Relay
Act
Low Cut Input 3
Input 4 Input 5
Input 6 Phantom Input 1 Input 2
1 9 8 7 6 5 3 4 2
10
VCA
Off Line Line Line Tel/Line 100mV Mix Bus CC Master Off
10