Extron electronics MPA 152 User Manual
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Extron electronics MPA 152 User Manual

Extron electronics MPA 152 User Manual

Mini power amplifier
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User's Manual
MPA 152
Mini Power Amplifier
68-1320-01
Rev. A
02 09

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Summary of Contents for Extron electronics MPA 152

  • Page 1 User’s Manual MPA 152 Mini Power Amplifier 68-1320-01 Rev. A 02 09...
  • Page 2 Precautions Safety Instructions • English Warning Power sources • This equipment should be operated only from the power source This symbol is intended to alert the user of important indicated on the product. This equipment is intended to be used with a main power operating and maintenance (servicing) instructions in system with a grounded (neutral) conductor.
  • Page 3 安全须知 • 中文 警告 电源 • 该 设 备 只 能 使 用 产 品 上 标 明 的 电 源 。 设 备 这个符号提示用户该设备用户手册中 必 须 使 用 有 地 线 的 供 电 系 统 供 电 。 第 三 条 线 有重要的操作和维护说明。...

  • Page 4: Important Safety Instructions

    Important Safety Instructions 1) Read these instructions. 2) Keep these instructions. 3) Heed all warnings. 4) Follow all instructions. 5) Do not use this apparatus near water. 6) Clean only with dry cloth. 7) Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.
  • Page 5 Step 1 Turn all of the equipment off and disconnect it from power sources. Step 2 Mount the MPA 152 on a rack, under a desk, or on a projector, as illustrated below. Extron PMK 300 Projector Mounting Bracket...
  • Page 6 Quick Start Guide — MPA 152 Amplifier, cont’d The MPA 152 amplifier mixes all right channel inputs to a single signal and all left channel inputs to a second signal. The user may output these signals as stereo or sum them to produce a dual mono signal.

  • Page 7: Table Of Contents

    ............3-3 Appendix A • Reference Information ......A-1 Specifications ................A-2 Included Parts ................A-4 Accessories ...................A-5 All trademarks mentioned in this manual are the properties of their respective owners. 68-1320-01 Rev. A 02 09 MPA 152 Amplifier • Table of Contents...
  • Page 8 Table of Contents, cont’d MPA 152 Amplifier • Table of Contents...

  • Page 9: Chapter One • Introduction

    MPA 152 Amplifier Chapter One Introduction About this Manual About the MPA 152 MPA 152 Features...

  • Page 10: About This Manual

    Introduction About this Manual This manual contains information about the Extron MPA 152 Mini Power Amplifier, with instructions on how to mount, install, and operate the unit. About the MPA 152 The Extron MPA 152 is a high performance, compact, power amplifier.

  • Page 11: Mpa 152 Features

    Compact size — The amplifiers are housed in a 1U high, quarter rack 3" deep, metal enclosure, which offers flexible mounting options. UL 2043 plenum rated — The MPA 152 meets UL 2043 requirements for heat and smoke release and is suitable for in-the-ceiling installations, allowing the unit to be stored out of sight, with reduced risk of theft.
  • Page 12 Introduction, cont’d MPA 152 Amplifier • Introduction...

  • Page 13: Chapter Two • Installation

    MPA 152 Amplifier Chapter Two Installation Mounting the MPA 152 MPA 152 Front Panel Features MPA 152 Rear Panel Features...

  • Page 14: Mounting The Mpa 152

    UL guidelines for rack mounting The following Underwriters Laboratories (UL) guidelines are relevant to the safe installation of the MPA 152 in a rack: Elevated operating ambient temperature — If the unit is installed in a closed or multi-unit rack assembly, the operating ambient temperature of the rack environment may be greater than room ambient temperature.

  • Page 15: Rack Mounting Procedures

    To rack mount the MPA 152, follow these directions: If necessary, remove rubber feet from the bottom of the unit. Secure the MPA 152 to the shelf with two 4-40 x 3/16" screws in opposite corners of the base (see figure 2-1 below).

  • Page 16: Projector Mounting

    Figure 2-2 — Projector mounting On the side mounting plates, the device is typically mounted on the outside of the bracket. On the front mounting plate, the device is mounted on the inside of the bracket. MPA 152 Amplifier • Installation...

  • Page 17: Plenum Placement

    Use an appropriately- sized socket wrench to tighten the hex nuts. Plenum placement The MPA 152 meets UL 2043 requirements for heat and smoke release and can be installed in the ceiling plenum space. Although the amplifier is plenum rated, the power supply provided with it is not.

  • Page 18: Under-Furniture Mounting

    Installation, cont’d Under-furniture mounting The MPA 152 amplifer can be mounted under furniture using the optional MBU 123 mounting kit (PN 70-212-01): Attach the mounting brackets to the MPA 152 with the provided machine screws as shown in the figure below.
  • Page 19 MPA 152 Amplifier • Installation...

  • Page 20: Mpa 152 Front Panel Features

    DUAL MPA 152 MONO MINI POWER AMPLIFIER Figure 2-4 — MPA 152 Front Panel Features Power LED — The green LED is lit when the unit receives power. Stereo/Dual Mono toggle switch — Allows the user to choose between stereo output for stereo program speakers or dual mono output for mono ceiling speakers Potentiometers —...

  • Page 21: Mpa 152 Rear Panel Features

    MPA 152 Rear Panel Features The illustration below shows the rear panel of the MPA 152. OUTPUT MPA 152 CLASS 2 WIRING DO NOT GROUND LISTED OR SHORT OHMS 17TT SPEAKER OUTPUTS! AUDIO/VIDEO APPARATUS INPUTS POWER REMOTE VOL/MUTE 3A MAX 50mA Figure 2-5 —...

  • Page 22: Power Connector

    Any shorter and the wires can be easily pulled out even if tightly fastened by the captive screws. Do not tin the wires. Tinned wire does not hold its shape and can become loose over time. MPA 152 Amplifier • Installation 2-10...

  • Page 23: Audio Inputs

    Depending on the position of the front panel toggle switch, the right and left channels may be output as a stereo signal, or summed and output as a dual mono signal. MPA 152 Amplifier • Installation 2-11...

  • Page 24: Remote Control

    V giving full attenuation and 10 V giving maximum volume. It can be used for remote control muting. Sound is muted while the mute pin is shorted to ground. • Pin 3 is ground. All nominal levels are at ± 10% MPA 152 Amplifier • Installation 2-12...

  • Page 25: Controlling Multiple Amplifiers With One Volume Controller

    Controlling multiple amplifiers with one volume controller Several MPA 152 units can be daisy-chained so that one volume controller can simultaneously regulate the volume of all the amplifiers. As additional amplifiers are added to the daisy chain, the sensitivity of the volume potentiometer will change.

  • Page 26: Audio Output

    Any shorter and the wires can be easily pulled out even if tightly fastened by the captive screws. Do not tin the wires. Tinned wire does not hold its shape and can become loose over time. MPA 152 Amplifier • Installation 2-14...

  • Page 27: Chapter Three • Operation

    MPA 152 Amplifier Chapter Three Operation Setting up the MPA 152 Amplifier Remote Control Options...

  • Page 28: Setting Up The Mpa 152 Amplifier

    Operation Setting Up the MPA 152 Amplifier Setting input level Adjust the MPA 152 input level, bass as follows: Unplug the remote plug from the unit. Turn the level potentiometer fully counterclockwise. Set the volume of the audio source to its maximum level.

  • Page 29: Remote Control Options

    Using the projector's IR remote — For a projector with variable audio outputs, connect the projector audio output to the MPA 152 audio input. Use the projector's IR remote to control the projector's volume, which effectively controls the volume of the MPA 152.
  • Page 30 Operation, cont’d MPA 152 Amplifier • Operation...

  • Page 31: Appendix A • Reference Information

    MPA 152 Amplifier A ppendix A Reference Information Specifications Included Parts Accessories...

  • Page 32: Specifications

    0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV 2 dBu Audio output Number/Signal type ....1 stereo or 2 mono (2 channels total) Connectors ........(1) 5 mm captive screw connector, 4 pole Minimum load impedance ..4 ohms Amplifier Type....... Class D MPA 152 Amplifier • Reference Information...
  • Page 33 (RSF 123, #60-190-20; or RSB 123 #60-604-20) Furniture mount....Yes, with optional VersaTools MBU 123 ® mini under-desk mounting kit (#70-212-01) Projector mount ....Above-projector mountable with optional PMK 300 Multi-Product Projector Mounting Kit (#70-374-01) Enclosure type ....... Metal MPA 152 Amplifier • Reference Information...

  • Page 34: Included Parts

    MTBF..........30,000 hours Warranty......... 3 years parts and labor All nominal levels are at ±10% Specifications are subject to change without notice. Included Parts These items are included in each order for an MPA 152: Included parts Replacement part number MPA 152...

  • Page 35: Accessories

    VCM 100 MAAP Volume/mute - MAAP 70-397-11 MLA VC10 Volume control module 60-502-01 SPK 18 Pre-cut speaker cable 26-627-25 SI 3 (Black, White) 42-105-xx SI 3CT LP ceiling speakers 42-103-03 SI 26 (Black, White) 42-072-xx SI 26 X 42-067-03 MPA 152 Amplifier • Reference Information...
  • Page 36 Reference Information, cont’d MPA 152 Amplifier • Reference Information...
  • Page 37 In no event will Extron Electronics be liable for direct, indirect, or consequential damages resulting from any defect in this product even if Extron Electronics has been advised of such damage.
  • Page 38 Inside Europe Only Inside Asia Only +81.3.3511.7656 FAX Inside China Only +971.4.2991880 FAX Inside USA / Canada Only +1.919.863.1794 +31.33.453.4040 +65.6383.4400 +86.21.3760.1568 +1.714.491.1500 +1.919.863.1797 FAX +31.33.453.4050 FAX +65.6383.4664 FAX +86.21.3760.1566 FAX +1.714.491.1517 FAX © 2009 Extron Electronics. All rights reserved.

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