Atlas AA120, Owner'S Manual

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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
7
REAR PANEL DESCRIPTION
9. Dipswitch "A" Positions 1-6
Understanding the functionality of the dipswitches is key to getting the most out of the AA120/AA240.
Whether the switch is in the "Up" or "Down" position is critical to the function of the amplifi er. Note:
Mispositioning any of these switches may cause harm to the speakers or amplifi er. We recommended
all levels be turned down prior to making any switch selections. Pay close attention to the two
assignment charts and manual for proper settings.
Dipswitch 1- LOW CUT – When in the " ON " position, frequencies below 400Hz are attenuated
at the rate of 6dB per octave. Note: The rotary bass control is bypassed when the LOW CUT fi lter
is on. We suggest that when paging horns are connected to the AA120/AA240, engage the LOW
CUT fi lter to prevent the horns from operating below their cut off frequency. When " OFF ", the
amplifi er operates full bandwidth.
Dipswitch 2-6 - MUTE RCV (RECEIVE) – When " ON ", Input's 2-6 signals will be muted
upon a signal present on Input 1 (Refer to Number 11 Input 1 Sens ), or a contact closure on the
remote mute terminals (Refer to Number 15 Remote Mute ).
10. Dipswitch "B" Positions 1-8
Dipswitch 1 – When set to the " 100mV " position, the sensitivity of Input 6 is suitable for
inputting Telephone Paging Signals. When set to the " 300mV " position, the sensitivity of Input 6 is
suitable for CD/DVD player outputs.
Dipswitch 2-5 - When set to the " Line " position, input sensitivity is suitable for CD/DVD line
level outputs. When set to the “ Mic " position, sensitivity is suitable for microphone inputs.
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 2 Input 3 Input 4 Input 5 Phantom
On
Off
Input 6
1 2 3 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
5 1
2 3
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
¡ 100V 70V 25V 8 Com
+ +
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
9
Off
On Off
On
Off
On
Off
On
Input 2
On
Off Off
On
Mute Rcv
Input 6 Input 5 Input 4 Input 3
5 1
2 3
4
Low Cut
6
10
Input 6
Line
Mic
Line
Mic
Line
Mic
Sens
Input 1 Input 2 Input 3 Input 4 Input 5 Phantom
On
Off
Input 6
1 2 3 4 5
300mV
100mV
6 7
Master Line
Mic
Mic
Tel/Line
VCA
8