Introduction

This guide contains information about the Extron MPA 401-70V and MPA 401100V mini power amplifiers with instructions for experienced installers on how to install, configure, and operate the equipment. Unless otherwise specified, references in this guide to the “amplifier,” “MPA,” or “MPA 401” relate to the features or operation of either amplifier.

MPA 401-70V and MPA 401-100V Description

The Extron MPA 401-70V and MPA 401-100V integrated mini power amplifiers provide mono amplification for speaker systems that require compact and economical audio solutions. Both amplifiers accept balanced or unbalanced, stereo or mono inputs and provide a summed mono output. The MPA 401-70V delivers up to 40 watts (rms) for a high-impedance, 70 V distributed sound system. The MPA 401-100V delivers up to 40 watts (rms) for a high-impedance, 100 V distributed sound system.

Front panel controls allow easy adjustment of bass, treble, and input levels. Volume can be controlled remotely by the Extron VCM 100, VC 50, or MLA VC 10.

Both amplifiers feature high efficiency, Class D amplifier design with advanced CDRS(Class D Ripple Suppression) technology that eliminates EMI emissions and interference with sensitive A/V equipment. The design allows the amplifiers to be fanless and operate in environments with little or no ventilation. Both amplifiers meet UL 2043 for smoke and fire code for above-theceiling installations.

Extron

SI 3CT LP

Full-Range

Ceiling Speakers Extron VC 50

Volume Controller

Extron MPA 401

Mini Power Ampli￿er

 

 

Extron

 

 

Extron

MPA

-70V

MLC 104 IP Plus

401

 

Controller

OUTPUT

INPUTS

70V

 

REMOTE

L

R

POWER

L

 

R

 

Extron

 

 

DVS 304 DVI AD

 

Flat Panel

Digital Video

 

 

Display

Scaler

Audio

(DVI)

w/ Audio

 

 

 

VCR

DVD

DSS Receiver

Laptop

(RGB)

(Video)

(Component)

(S-video)

 

Figure 1. Typical Application for the MPA 401

MPA 401-70V and MPA 401-100V • Introduction

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Extron electronic manual Introduction, MPA 401-70V and MPA 401-100V Description

MPA 401-70V specifications

The Extron Electronics MPA 401-70V and MPA 401-100V are powerful, compact audio power amplifiers designed for efficient performance in a variety of professional audio applications. These amplifiers are specifically tailored for use in systems that require reliable, high-quality audio distribution in challenging environments, such as schools, corporate settings, and commercial spaces.

One of the standout features of the MPA 401 series is its versatility in supporting both 70V and 100V speaker systems. This functionality allows for easy integration into existing audio setups, accommodating different types of speakers and installation requirements. The MPA 401-70V and MPA 401-100V boast an output power rating of 40 watts per channel, providing ample power for driving multiple speakers while maintaining audio clarity and precision.

Another key technology employed in these amplifiers is their efficiency and thermal management, which are critical for long hours of operation. The MPA 401 series is designed with an advanced Class D output stage, ensuring high efficiency while minimizing heat generation. This not only leads to lower energy costs but also increases the reliability of the devices, ensuring consistent performance even in demanding conditions.

The MPA 401 amplifiers are equipped with comprehensive input options, including both balanced and unbalanced inputs to accommodate various audio sources. This flexibility makes it easy to connect microphones, mixers, and other audio sources, ensuring that users have the tools needed to create a seamless audio experience. Additionally, each amplifier includes a built-in high-pass filter, which can help optimize the sound when used with specific speaker types.

Including features such as fault protection, short circuit protection, and thermal protection, the MPA 401 amplifiers ensure both safety and longevity in operations. Their compact design makes them ideal for installation in tight spaces, while the rugged construction guarantees durability in any environment.

Furthermore, the amplifiers offer front-panel controls, providing users instant access for volume adjustments and signal monitoring. This simplicity of use enhances the overall user experience, allowing for quick adaptations and optimizations on the fly.

In summary, the Extron MPA 401-70V and MPA 401-100V are robust amplifiers designed to withstand various environmental challenges while delivering exceptional audio performance. Their combination of power, efficiency, and flexibility makes them an excellent choice for a broad range of professional audio applications.