Atlas Sound AA120M Input 1 Trim, Mute Sens For Vox Mute Bus, Mute Send On/Off, Inputs 2, 3

Page 9

AA120M MIXER AMPLIFIER

OWNER'S MANUAL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16

 

11

 

 

 

 

 

 

 

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

 

 

CLASS 2 WIRING

 

 

 

 

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15

 

 

 

 

 

 

 

 

14

 

 

 

 

 

 

 

 

 

12

13

11.Input 1 Trim

This variable control adjusts the sensitivity of INPUT 1. When the dipswitch is set to "Mic" it allows fine tuning of the input gain structure to the AA120M. There is 20dB of variable gain available. This feature is PRE channel level control.

12.Mute Sens For Vox Mute Bus

This control adjusts how sensitive the mute send circuitry on INPUT 1, 2, 3, 4, or 6 reacts. Setting the control fully counter-clockwise will lower the sensitivity, and a higher amplitude signal will be required at INPUT 1, 2, 3, 4, or 6 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.

13.Mute Send On/Off

Set to the "On" position, and audio is present at INPUT 1, a mute command will be sent to the VOX Mute bus, thereby muting any channels set to "MUTE RCV". When set to the "Off" position, no Mute commands will be sent.

14.Inputs 2, 3, and 4

Balanced mic or line level signals connect to the (+) (–) and (G) terminals. Refer to the chart above "Multi Function Dipswitch" for the proper setting for mic or line level operation. If you are connecting an unbalanced line level input, tie (short) the (G) and (–) terminals together.

15.Input 5

INPUT 5 consists of stereo summing RCA jacks. These are suitable for connection to the output of CD/DVD players. Note: INPUT 5 has factory installed mute features, please refer to Section 17 VOX Mute Swith and Section 18 Remote Mute for details.

16.Input Trim Controls, Channels 2, 3, and 4

This variable control adjusts the MIC sensitivity of INPUT 2, 3, and 4 allows fine-tuning of the input gain structure to the AA120M. There is 20dB of variable gain available. This feature is PRE channel level control.

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

 

 

 

 

9

Image 9
Contents AA120M Mixer Amplifier AtlasSound.comSafety Instructions AA120M Mixer Amplifier Table of ContentsFeatures IntroductionApplications Message Conventions and Safety Symbols AA120M Mixer Amplifier Safety PrecautionsAtlasSound.com AA120M Mixer Amplifier Front Panel Description AA120M Mixer Amplifier Rear Panel Description DipswitchInput Mute Sens For Vox Mute Bus Input 1 TrimMute Send On/Off Inputs 2, 3,Zone 2 And Zone 3 Level Controls VOX Mute Switch For Channels 2, 3, 4,Input 6 Module Slot Tape OutPwr Pre OutBridge In/Out Bridge SelRemote Mute Priority Mute Zone 2 And Zone 3 Mute Assign Special Internal FeatureZone 3 Out Zone 2 OutRelay VDC TerminalsLoudspeaker Terminals Circuit BreakerPower Cord Unswitched OutletAA120M Mixer Amplifier Quick Start Examples Dipswitch SettingsOFF Example 3 Optional Plug-In Module Application Example 4 Remote Level Control Example 5 Hotel Room Combining Using Two AA120Ms BGM Source Security Plug Installation AA120M Mixer Amplifier Wiring the AA120MRack Mount KIT To VCA TerminalsOptional Input Transformer AA120M Mixer Amplifier Internal Jumper LocationsBlock Diagram for AA120M Sensitivity AA120M Mixer Amplifier SpecificationsAtlasSound.com AtlasSound.com Service Limited Warranty
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AA120M specifications

The Atlas Sound AA120M is a versatile and powerful amplifier designed primarily for commercial and professional audio applications. This robust unit stands out due to its impressive features, advanced technologies, and impeccable sound characteristics, making it a popular choice for venues such as conference halls, schools, and places of worship.

At the heart of the AA120M is its 120-watt output, which ensures that audio distribution is both loud and clear, capable of powering a variety of speaker systems. Its high-efficiency design incorporates a Class D amplification technology that not only enhances sound quality but also minimizes power consumption. This efficient power management results in lower heat output, which prolongs the lifespan of the unit and reduces the need for extensive cooling systems.

The AA120M is equipped with multiple input options, including balanced XLR and unbalanced RCA connectors, accommodating various audio sources. The microphone input features a priority mode, allowing announcements or important messages to override background music seamlessly. This feature is particularly beneficial in environments where announcements are critical to safety and communication.

Sound quality is further enhanced by the built-in EQ controls, allowing users to shape the audio output to suit the acoustics of their environment or personal preferences. The amplifier also offers a low-impedance operation, which supports a wide range of speaker systems, enhancing compatibility across different setups.

Another noteworthy characteristic of the AA120M is its built-in limiter circuitry, designed to prevent audio peaks that could lead to distortion or damage to connected speakers. This protective feature makes it an ideal choice for public address systems where audio integrity is paramount.

Additionally, the amplifier includes a sleek, rack-mountable design, making it easy to integrate into existing audio setups. Its durability and reliability ensure that it can handle extended use without compromising performance.

In summary, the Atlas Sound AA120M is a multifunctional amplifier that combines power, efficiency, and flexibility. With its advanced features and technologies, it stands out as a compelling choice for anyone looking to enhance their audio experience in commercial or professional settings, delivering clear and powerful sound with every use.