Extron electronics MPA 152 Plus User Manual
Energy star qualified mini power amplifier
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Summary of Contents for Extron electronics MPA 152 Plus
- Page 1 MPA 152 Plus ENERGY STAR Qualified Mini Power Amplifier ® User Guide Audio Products 68-1320-03, Rev. D 01 24...
- Page 2 Safety Instructions Safety Instructions • English Instructions de sécurité • Français AVERTISSEMENT : Ce pictogramme, , lorsqu’il est utilisé sur le WARNING: This symbol, , when used on the product, is intended to produit, signale à l’utilisateur la présence à l’intérieur du boîtier du produit alert the user of the presence of uninsulated dangerous voltage within the d’une tension électrique dangereuse susceptible de provoquer un choc product’s enclosure that may present a risk of electric shock.
- Page 3 安全说明 • 简体中文 警告： 产品上的这个标志意在警告用户, 该产品机壳内有暴露的危险 电压， 有触电危险。 注意： 产品上的这个标志意在提示用户, 设备随附的用户手册中有重 要的操作和维护(维修)说明。 关于我们产品的安全指南、遵循的规范、EMI/EMF 的兼容性、无障碍使 用的特性等相关内容， www.extron.com 敬请访问 Extron 网站 , ，参见 Extron 安全规范指南，产品编 。 号 68-290-01 安全記事 • 繁體中文 안전 지침 • 한국어 경고: 이 기호 가 제품에 사용될 경우, 제품의 인클로저 내에 있는 警告: 若產品上使用此符號，...
- Page 4 FCC Class B Notice NOTE: This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC rules.
- Page 5 Conventions Used in this Guide Notifications In this user guide, the following are used: WARNING: Potential risk of severe injury or death. AVERTISSEMENT : Risque potentiel de blessure grave ou de mort. CAUTION: Risk of minor personal injury. ATTENTION : Risque de blessure mineure. ATTENTION: •...
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Page 7: Table Of Contents
Introduction ................................1 Important Safety Instructions ..........................1 About the MPA 152 Plus ............................2 MPA 152 Plus Features .............................2 Panels and Cabling ..............................4 MPA 152 Plus Rear Panel Features ........................4 Power Connector ............................4 Audio Inputs ..............................6 Remote Control ..............................7 Audio Output ..............................9 Setup and Operation .............................10... - Page 8 MPA 152 Plus • Contents viii...
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Page 9: Introduction
Introduction This manual contains information about the Extron MPA 152 Plus mini power amplifier with instructions for experienced installers on how to install, configure, and operate the equipment. Unless otherwise specified, in this manual “amplifier” or “MPA” refer to the MPA 152 Plus. -
Page 10: About The Mpa 152 Plus
About the MPA 152 Plus The MPA 152 Plus is an ENERGY STAR qualified amplifier with an Extron exclusive, highly efficient, advanced Class D amplifier design. It also features patented CDRS (Class D Ripple Suppression) technology that provides a smooth, clean audio waveform and an improvement in signal fidelity over conventional Class D amplifiers. The high efficiency design generates very little heat and allows the amplifier to be fanless and operated in environments with little or no ventilation. - Page 11 • UL 2043 plenum rated — The MPA 152 Plus complies with UL 2043 for smoke and heat release for installation within a plenum airspace above a drop ceiling (power supply excluded). Above-the-ceiling placement conceals the amplifier to prevent theft, and is convenient for installing equipment when space inside the room is limited.
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Page 12: Panels And Cabling
This section discusses the MPA 152 Plus rear panel features and cabling. MPA 152 Plus Rear Panel Features The rear panel of the MPA 152 Plus (shown in figure 2 below) allows the user to connect power (see below), Audio Inputs... - Page 13 S’ils sont trop courts, ils peuvent être tirés facilement, même s’ils sont correctement serrés par les borniers à vis. NOTE: Do not tin the wires. Tinned wire does not hold its shape and can become loose over time. MPA 152 Plus • Panels and Cabling...
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Page 14: Audio Inputs
Depending on the position of the front panel toggle switch (figure , on page 10), the right and left channels Audio Output may be output as a stereo signal or as a dual mono signal. See (see page 9) for more information. MPA 152 Plus • Panels and Cabling... -
Page 15: Remote Control
Mute: it can be used for remote control muting. Sound is muted while this pin is shorted to ground. • Pin 3 is for the ground connection. NOTE: All nominal levels are at ±10%. MPA 152 Plus • Panels and Cabling... - Page 16 To regulate multiple amplifiers with a single volume controller, follow these instructions: 1. Attach all three pins of the volume controller to the corresponding pins on the first MPA 152 Plus unit only: • Ground () to ground (G) •...
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Page 17: Audio Output
Signal flow is as follows: 1. The MPA 152 Plus sums and weights the left unbalanced signals from the TRS and RCA inputs. This summed, unbalanced signal is then summed with the left balanced signal from the captive screw input. -
Page 18: Setup And Operation
• Defeating the Auto Power-down Timer • Troubleshooting Front Panel Features and Operation This section describes how configure the MPA 152 Plus, using the front panel controls and how to set up the remote control options. LEVEL BASS TREBLE STEREO... -
Page 19: Setting Input Level
3. Set the volume of the audio source to its maximum level. No sound should come out. LEVEL 4. Slowly increase the MPA 152 Plus level by rotating the potentiometer clockwise without using excessive torque until sound distortion starts. -
Page 20: Remote Control Options
Using the IR remote for the projector — When using a projector with variable audio outputs, connect the projector audio output to the MPA 152 Plus audio input. Use the IR remote for the projector to control the volume of the projector, which effectively controls the volume of the MPA 152 Plus. -
Page 21: Defeating The Auto Power-Down Timer
Ne pas toucher les composants électroniques ou les connecteurs sans être électriquement relié à la terre. Manipuler les circuits imprimés en les tenant seulement par leurs bords. Les décharges électrostatiques (ESD) peuvent endommager l’équipement, même si vous ne pouvez pas le sentir, le voir ou l’entendre. MPA 152 Plus • Operation... -
Page 22: Troubleshooting
Amplifier Enters Standby Mode Too Early Power LED Color Problem Description Problem Solution Green or Amber Enters standby mode early. The input signal may be too weak. Raise the level of the source signal. MPA 152 Plus • Operation... -
Page 23: Mounting
Rack Mounting Other Mounting Options Rack Mounting UL Guidelines for Rack Mounting The following Underwriters Laboratories (UL) guidelines are relevant to the safe installation of the MPA 152 Plus in a rack: CAUTION: • 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 24: Consignes Ul Pour Le Montage En Rack
ATTENTION: • Use only the two holes indicated in figure 11 for mounting the MPA 152 Plus. The other four holes anchor stand-offs for the internal circuit boards; using them may damage the amplifier and will not provide secure mounting for the unit. -
Page 25: Back Of The Rack Mounting
• Plenum placement — The MPA 152 Plus amplifier complies with Section 300.22 (c) of the National Electrical Code and is suitable for use in an Environmental Air Space. It can be installed in the ceiling, out of sight, with reduced risk of theft. -
Page 26: Extron Warranty
Extron Electronics makes no further warranties either expressed or implied with respect to the product and its quality, performance, merchantability, or fitness for any particular use. 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.