Extron electronic MPA 122 user manual Introduction, About this Manual, About the MPA, Features

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Introduction

About this Manual

This manual contains information about the Extron MPA 122 Mini Power Amplifier with instructions on how to mount and operate the unit.

About the MPA 122

The Extron MPA 122 Mini Power Amplifier provides 2-channel power amplification for speaker systems in applications requiring compact, economical audio solutions. The MPA 122 delivers 11 watts (rms) per channel into 4 ohms and

7 watts (rms) into 8 ohms. It is optimized for driving four 8 ohm ceiling speakers, two in parallel, per channel.

The MPA 122 accepts balanced and unbalanced stereo inputs, and provides outputs as stereo or dual mono audio signals. Front panel controls are provided for input level, bass, and treble. The front panel also features switches for stereo/dual mono operation and a limiter switch which automatically reduces the gain to prevent distortion (amplifier clipping). The MPA 122 features remote control capability for volume adjustment and muting. As part of the VersaTools® line, the MPA 122 can be housed in a 1U, quarter rack width metal enclosure, mounted under a desk, or mounted on a projector.

Features

Digital audio amplifier — The MPA 122 features improved, class D technology for high efficiency and low distortion.

Compact size — The MPA 122 is housed in a 1U high, 1/4 rack width, 3" deep, metal enclosure, making this amplifier a powerful product for many unique applications.

Balanced and unbalanced audio inputs — Balanced or unbalanced stereo input is on a captive screw connector. The MPA 122 also includes RCA connectors and a 3.5 mm stereo mini jack for unbalanced input.

Quick plug speaker outputs — Speaker output is on a captive screw connector for quick installation.

Front panel controls — Input level, bass, and treble can be easily adjusted from the front panel.

Limiter switch — The limiter switch prevents output distortion (clipping) and potential damage to speakers.

Stereo/dual mono switch — Fits applications for both stereo program speakers or mono ceiling speakers.

Volume and mute remote control — The MPA 122 can be remotely controlled for volume adjustment and muting via connectivity to a rear panel, captive screw “Remote” input connector.

Flexible mounting options — The MPA 122 can be mounted on a rack, projector, or under furniture.

External international power supply — The autoswitchable, 12 VDC, 3 A external power supply provides worldwide power compatibility (part #70-380-01).

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MPA 122 • Introduction 1-3

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Contents Mini Power Amplifier User’s ManualPrecautions Extron’s WarrantyFCC Class a Notice Quick Start Guide MPA Under Desk Projector MountTable of Contents Introduction Table of Contents, cont’dOne MPAAbout this Manual FeaturesIntroduction About the MPAInstallation and Operation TwoIntroduction MPA Mounting the MPA Installation and OperationInstallation Overview Rack mountingInstallation and operation, cont’d Projector mountingUnder-desk mounting Rear Panel Features Power inputAudio inputs Remote control Front Panel FeaturesSetting Up the MPA 122 Amplifier Audio outputRemote connector wiring Chapter ThreeRemote Operation AAppendix a Specifications, Part Numbers AccessoriesRemote Control Options Remote OperationAudio input Specifications, Part Numbers, and AccessoriesAudio Control/remote amplifierOptional Accessories Included PartsSpecifications, Part Numbers, Accessories, cont’d

MPA 122 specifications

Extron Electronics is known for its innovative solutions in the field of professional AV systems, and among its comprehensive range of products, the MPA 122 stands out as a highly versatile audio amplifier. Designed to deliver clear and powerful audio in various applications, the MPA 122 is particularly well-suited for installations in conference rooms, classrooms, and other environments where high-quality sound reinforcement is essential.

One of the main features of the Extron MPA 122 is its ability to deliver 2-channel power, with output capabilities of 2 x 60 watts into 4-ohm loads. This dual-channel setup allows for extensive variances in configuration, catering to both stereo and monaural applications. Users can leverage the compact design of the MPA 122, which takes up minimal rack space while providing ample audio output.

The MPA 122 incorporates Extron's advanced Class D amplifier technology, which ensures high efficiency and low power consumption while still delivering impressive sound quality. This technology contributes to reduced operating costs and less heat generation, making the amplifier ideal for integration into tight spaces.

Another characteristic that enhances the MPA 122's appeal is its wide range of input options. The amplifier features both balanced and unbalanced inputs, including 3.5mm stereo and Euroblock connectors. This flexibility simplifies integration into existing systems, allowing users to connect various audio sources seamlessly.

The amplifier also offers comprehensive signal processing capabilities. Integrated DSP features include comprehensive equalization and limiting functions, which allow users to fine-tune the audio output for specific environments. This level of customization ensures that the sound produced is balanced and appropriate for the specific space being used.

Moreover, the MPA 122 is equipped with a built-in priority mixing capability. This function allows one signal to take precedence over others, making it ideal for applications that require announcements or emergency message broadcasting.

Reliability is another key consideration with the MPA 122. The unit is designed for long-term, continuous use and comes with a robust cooling system to prevent overheating during extended operational periods.

In conclusion, the Extron MPA 122 is a high-performance audio amplifier that combines compact design with extensive capabilities. With its advanced technology, versatility in connectivity, and user-friendly features, it stands as an excellent choice for various audio amplification needs in professional installations.