MPA 401-70V and MPA 401-100V Features

Patented CDRS (Class D Ripple Suppression) — CDRS is an Extron patented technology that eliminates high frequency switching ripple and EMI emissions found in all Class D amplifiers. CDRS dramatically improves audio performance over conventional Class D amplifier designs and enables Extron power amplifiers to be situated near wireless A/V devices without RF interference.

UL 2043 plenum rated — The amplifiers meet UL 2043 for smoke and heat release for installation within a plenum airspace above a drop ceiling. Above-the-ceiling placement conceals the amplifier to prevent theft and is convenient for installing equipment when space inside the room is limited.

Balanced and unbalanced buffered audio inputs — Both amplifiers accept balanced or unbalanced, stereo or mono audio input signals on a captive screw connector, and unbalanced audio on both RCA connectors and a 3.5 mm stereo mini jack.

NOTE: The amplifiers mix all right channel inputs to a single signal and all left channel

inputs to a second signal. The right signal and left signal are then summed to produce a mono signal.

The three stereo inputs are individually buffered and can be connected to three separate sources at the same time without altering performance.

Quick-plug speaker outputs — Speaker output is on a 5 mm screw lock captive screw connector for quick installation.

ENERGY STAR® qualified amplifier — The MPA 401-70V and MPA 401-100V amplifiers are ENERGY STAR qualified amplifier and energy efficient products that conserve energy and reduce costs.

Auto-standby with fast power up — automatically places the amplifiers into standby after 25 minutes of inactivity. They quickly return to full power status in less than one second upon signal detection. The amplifiers consume just 6 watts when idle and less than 1 watt in standby mode.

Front panel bass, treble, and input level controls — Bass, treble, and input level are easily adjusted from the front panel.

Fanless design — The amplifiers do not require fans or vents for cooling, ensuring quiet, reliable operation.

Automatic clip limiter — Detects actual onset of clipping by comparing input and output waveforms. Gain is automatically reduced with a slow attack and fast release to eliminate clipping. This advanced limiter design protects the speakers from clipping distortion and offers superior sonic characteristics compared to limiters that use signal compression.

Remote volume and mute control port — A rear panel, three-pin captive screw remote input connector allows remote adjustment of volume and muting. In basic installations without third-party control systems, this port allows the amplifiers to be remotely controlled using the optional Extron VCM 100 series analog volume and mute controller or VC 50 analog volume controller.

Compact size — The 1U, quarter rack width, 6 inch deep metal enclosure, offers flexible mounting options.

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

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Extron electronic manual MPA 401-70V and MPA 401-100V Features
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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.
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