Atlas Sound specifications AA120M Mixer Amplifier Rear Panel Description, Dipswitch

AA120M MIXER AMPLIFIER OWNER'S MANUAL

REAR PANEL DESCRIPTION

9

Unswitched Outlet

Outlet Breaker

Input 6

Input 5

Input 4

Input 3

Input 2

Input 1

Mute

120V AC 60Hz

125V AC 4A

Zone 2

Zone 3

Max 500W

Push Reset

Bridge

Zone 2

Zone 3

Trim

Trim

Trim

Trim

Sens

Relay

24V DC 200mA

Zone 2 Out

Zone 3 Out

Remote Mute

VCA

In/Out

Sel

Level

Level

1W 8

600

1 2 3 4 5 6 7 8 910

NC C NO – +

– + – +

G – +

0

10 0

10

0

10

0

10

0

10

0

10

0

10

0

10

0

10

Level

Level

Vox Mute

Vox Mute

Vox Mute

Vox Mute

Send

Rcv

Send

Rcv

Send

Rcv

Send

Off

Off

Off

Off

Speaker Output 120W

Zone 2 Level

Zone 3 Level

Zone 2 Level

Zone 3 Level

Zone 2 Level

Zone 3 Level

Zone 2 Level

Zone 3 Level

Pwr In

Tape Out

Com

8

25V

70V

100V

0

10

0

10

0

10

0

10

0

10

0

10

0

10

0

10

Input 6

R

Chime Module

VoxMute

L

Send

Rcv

G

–

+

G

–

+

G

–

+

G

–

+

Off

Pre Out

Input 5

Line Out

Input 4

Input 3

Input 2

Input 1

120V AC 60Hz 300W

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9.Dipswitch 1-10

Understanding the functionality of the dipswitches is key to getting the most out of the AA120M. Whether a 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 powering off the amplifi er prior to making any switch selections. Pay close attention to the assignment chart and manual for proper settings.

1	2	3	4	5	6	7	8	9	10
Low Cut	VCA	Phantom	Relay	Input 6	Input 5	Input 4	Input 3	Input 2	Input 1
			Act
On	Input 5	On	Vox	Amp Dir	300mV	Mic	Mic	Mic	Mic

Off

Master

Off

CC Mix Bus 100mV Line Line Line Tel/Line

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 engaged. We suggest that when paging horns are connected to the AA120M, engage the LOW CUT fi lter to prevent the horns from operating below their cutoff frequency. When "OFF", the amplifi er operates full bandwidth.

Dipswitch 2- VCA – When set to the "Master" position, the VCA control port acts as a system remote volume control, adjusting all the input channels up or down simultaneously. When set to the "Input 5" position, the VCA remote control port affects only the level of INPUT 5.

Dipswitch 3- PHANTOM – When set to the "OFF" position, PHANTOM POWER is turned off on INPUTS 1-4. When set to the "ON" position, PHANTOM POWER (24VDC) is available on INPUTS 1-4.

Dipswitch 4- Relay ACT - When set to the "CC" position, the internal relay is triggered by contact closure (see page 32). When set to the "VOX" position, the internal relay is triggered by audio signals at INPUTS 1-4 and INPUT 6, depending upon their rear panel switch setting.

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
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