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
10
19. Bridge Select
The "Bridge Select (Sel)" terminals are the access point to activate the "Bridge In/Out" feature. To
activate the feature connect the two points together via an external contact closure. These two points
must be connected to send or receive any signal. By connecting the Bridge In/Out terminals of two
AA120/AA240's, a simple room combining system can be accomplished. If using a remote switch and
closing it, the "Bridge Select (Sel)" will combine the amps as one, opening the switch will separate
the two amps. Note: If combining 3 or 4 mixers together the output level will have to be adjusted
before and after Bridge Sel terminals are connected (shorted) together. We suggest utilizing the
Remote Level control when using this feature.
20. Input 1
Balanced mic or line level signals connect to the (+) (–) and (G) terminals. Refer to the chart above
"Multi Function Dipswitch" for the following setting. Dipswitch 6, labeled Input 1 must be set to the
proper position for mic or Tel/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 20 for transformer installation. Contact Atlas for more details
on the Input Isolation Transformer.
Note: Input 1 cannot be muted from other channels. This channel is the VOX mute send to the other
inputs that are set to Mute Receive. The sensitivity and threshold for the VOX send works in
conjunction with the Input 1 Trim and the Input 1 Sens.
21. Inputs 2-5
Inputs 2-5 are balanced, line or mic level (Refer to Dipswitch Bank 1-8 for setting input sensitivity). For
wiring unbalanced inputs, tie (short) the (G) and (–) terminals together.
22. Input 6
INPUT 6 consists of a pair of stereo summing, line level inputs. Connect unbalanced audio outputs
here such as CD players or audio from DVD players.
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
£Èä£Ê>VÊV>ÞÊÛ`°]ÊÃ]Ê/8ÊÇx££Ê
nää®ÊnÇÈÎÎÎÎÊÌ>Ã-Õ`°V
CLASS 2 WIRING
19
20
2122
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