Owner`s manual

Specifications are subject to change without notice
AtlasSound.com
1601 JACK MCKAY BOULEVARD ENNIS, TEXAS 75119 U.S.A. • TELEPHONE: [phone] • FAX: [phone]
©2006 ATLAS SOUND LP Printed in U.S.A. 000106 ATS002187 RevA 01/06 PP
OWNER'S MANUAL
AA120/AA240 MIXER AMPLIFIER
8
Dipswitch 6 - When set the "Tel/Line" position, Input 1 sensitivity is suitable for telephone
paging and line level signals. When set to the "Mic" position, the sensitivity is set for microphone
signals.
Dipswitch 7 - When set to the "OFF" position, PHANTOM POWER is turned off on INPUTS
1-5. When set to the "ON" position, PHANTOM POWER (24VDC) is available on INPUTS 1-5
(mic position only).
Dipswitch 8 - When set to the "Master" position, the VCA control port acts as a over all system
remote volume control, adjusting all the input channels present on the master section mix bus up
or down simultaneously. When set to the "Input 6" position, the VCA remote control port affects
only the level of INPUT 6.
11. Input 1 Sens
This control adjusts how sensitive the mute send circuitry on INPUT 1 reacts. Setting the control fully
counter-clockwise will lower the sensitivity, and a higher amplitude signal will be required at INPUT 1
to trigger the mute send circuits. Fully clockwise will raise the sensitivity of the mute circuits, where a
lower amplitude signal will trigger a mute send. Careful calibration of this control may be required to
fully utilize the mute circuits’ capabilities. Adjustment of this control should occur after the input trim
(12) for channel 1 is set.
12. Inputs 1-5 Trim
These variable controls allows fi ne tuning of the gain of INPUTS 1 – 5. There is 20dB of variable gain
available. The trim only applies when the input is set to the "Mic" position on the dipswitch.
13. Zone 2 Level
This rotary control will vary the signal level at the Zone 2 output terminals. Fully counter-clockwise (0)
is off; fully clockwise (10) is the maximum output level. The Zone 2 output gets its signal from INPUT
6, volume control.
Input 6
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
VCA
8
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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