AA120M MIXER AMPLIFIER

OWNER'S MANUAL

Example 5 - Hotel Room Combining Using Two AA120Ms

This example utilizes the combining feature of the Atlas AA120M mixer amplifiers. The drawing on the following page shows the equipment connections for two hotel ballrooms, separated by a moveable air wall. They hotel needs to be able to have the audio system operate has one large unit (air wall open) or two discreet systems (air wall closed). As indicated in the example, a BGM CD player is shared between the two AA120Ms, via a "Y" cable, connected to input 5 of each mixer amp. The Bridge terminals of both amplifiers are connected together, through a DPST switch that makes (combines) or breaks (separates) the Bridge connections between the amplifiers. When the switch is closed, any audio signal into either amp will be present at both amplifier's speaker outputs. A volume control and DPST switch (see drawing for clarity) controls the room audio level and turns the music on or off in each room. For emergency evacuation purposes, a signal from the hotel's fire alarm system is connected to channel 1 of both amplifiers, with both channel's mute sensitivity adjusted as needed. To mute all audio when the emergency signal is present, all other channels are set for Mute receive.

Set Input 1 to Mute Send

Set Input 2-4 to Mute RCV

Dipswitch Settings

 

 

Dipswitch 1 - Off

Dipswitch 2

- Off (Master)

Dipswitch 3

- Off

Dipswitch 4

- Off (Not Affected)

Dipswitch 5

- Off (Not Affected)

Dipswitch 6

- Set to required gain

Dipswitch 7

- On (Mic)

Dipswitch 8

- On (Mic)

Dipswitch 9

- On (Mic)

Dipswitch 10 - Off (Tel/Line)

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

 

 

 

 

19

Page 19
Image 19
Atlas Sound specifications Example 5 Hotel Room Combining Using Two AA120Ms

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.