AA120M MIXER AMPLIFIER

OWNER'S MANUAL

Example 4 - Remote Level Control

Utilizing the optional plug-in modules and the Atlas Sound wall mounted VCA attenuators, we can produce a conference room or hotel ballroom PA system with both remote Master and remote Background Music (BGM) volume controls. Inputs 1-4 are wired to the microphone wall plates in the room and the BGM comes from a CD player or Satellite radio receiver.

Connect the mics to INPUTS 1-4. Note: The INPUT 1 Trim and Sens will need to be adjusted after all the settings and connections have been set. Dipswitch 3 (Phantom power) has been turned on for condenser type microphones.

Dipswitches 7-10 have been set to "Mic".

One wall mount volume control (Atlas Sound p/n AAVCC-10K) has been connected to the terminals marked "VCA" and Dipswitch 2 is set for Master.

Optional plug-in module, Atlas p/n AS-ML, has been inserted into the rear module slot, and the BGM source has been plugged into the module’s line level inputs. Adjust the module’s trim control as needed. The AS-ML is a mic or line input module with VCA capabilities.

Another volume control (AAVCC-10K) has been wired into the VCA terminals on the MODULE. This control will vary the BGM ONLY.

Dipswitch Settings

 

 

Dipswitch 1 - OFF

Dipswitch 2

- OFF (Master)

Dipswitch 3

- ON

Dipswitch 4

- OFF (CC)

Dipswitch 5

- ON (Amp Dir)

Dipswitch 6

- Off (100mV)

Dipswitch 7

- ON (Mic)

Dipswitch 8

- ON (Mic)

Dipswitch 9

- ON (Mic)

Dipswitch 10 - ON (Mic)

Atlas AS-ML

Module

Background

Music Source

Example 4

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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To 70V Speakers

Atlas AAVC-10K "Master Volume"

See Module Instructions for VCA Wiring Connections

Microphones

Atlas AAVC-10K "Master Volume"

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

 

 

 

 

18

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Atlas Sound AA120M specifications Example 4 Remote Level Control

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.