Extron electronics MPA 152 Plus User Manual
Energy star qualified stereo mini power amplifier
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Summary of Contents for Extron electronics MPA 152 Plus
- Page 1 User Guide Audio MPA 152 Plus ENERGY STAR Qualified Stereo Mini Power Amplifier ® 68-1320-03 Rev. A 11 13...
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Page 2: Safety Instructions
Safety Instructions Safety Instructions • English Инструкция по технике безопасности • Русский WARNING: This symbol, ПРЕДУПРЕЖДЕНИЕ: Данный символ, , если указан , when used on the product, is intended to alert the user of the presence of uninsulated dangerous voltage на... - Page 3 FCC Class B Notice 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. These limits provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
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Page 4: Conventions Used In This Guide
Conventions Used in this Guide Notifications the following are used: ATTENTION: Attention indicates a situation that may damage or destroy the product or associated equipment. NOTE: A note draws attention to important information. Specifications Availability Product specifications are available on the Extron website, www.extron.com. -
Page 5: Table Of Contents
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 .......... - Page 6 MPA 152 Plus • Contents...
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Page 7: 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 8: 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. - Page 9 This eliminates the need for external summing products in monoaural installations. 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).
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Page 10: Panels And Cabling
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),... - Page 11 Any shorter and the wires can be easily pulled out even if tightly fastened by the captive screws. 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 12: Audio Inputs
(see on page 10), the right and left channels may be output as a stereo signal or as a dual mono signal. See Audio Output on page 9 for more information. MPA 152 Plus • Panels and Cabling... -
Page 13: Remote Control
Pin 3 is for the ground connection. NOTE: All nominal levels are at ±10%. Controlling multiple amplifiers with one volume controller Several MPA 152 Plus units can be daisy‑chained so that one volume controller can simultaneously regulate the volume of all the amplifiers. NOTES: •... - Page 14 Figure 6. Regulating Multiple Amplifiers with a Single Volume Controller NOTE: The 10V pin of the volume controller connects to the first MPA 152 Plus only. There are no jumper wires linking it to subsequent amplifiers. MPA 152 Plus • Panels and Cabling...
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Page 15: Audio Output
MPA 152 Plus Summing Diagram Signal flow is as follows: The MPA 152 Plus sums and weights the left unbalanced signals from the TRS and RCA receptacles. This summed, unbalanced signal is then summed with the left balanced signal from the captive screw receptacle. -
Page 16: Setup And Operation
Figure 8. MPA 152 Plus Front Panel Power LED — The LED lights green when the MPA 152 Plus unit is receiving power and active. It lights amber when the unit is powered down (after 25 minutes of inactivity). Stereo or Dual Mono toggle switch — Allows the user to choose between stereo output for stereo applications (default) or dual mono output for mono applications. -
Page 17: Setting Bass And Treble
Using a MediaLink Controller — For a projector with variable audio output, connect the projector audio output to the MPA 152 Plus audio input. Use a MediaLink controller to adjust the volume of the projector via RS‑232. MediaLink controllers can also use the IR remote to adjust the volume of the projector and, thus, the input to the amplifier. -
Page 18: Defeating The Auto Power-Down Timer
Do not touch the electronic components or circuit board connectors ATTENTION: without being electrically grounded. Handle circuit boards by their edges only. ESD can damage circuits, even if you cannot feel, see, or hear it. MPA 152 Plus • Setup and Operation... -
Page 19: Troubleshooting
Amplifier Enters Standby Mode Too Early Power LED Problem Description Problem Solution Color Green or Enters standby mode The input signal may be too weak. Raise the Amber early. level of the source signal. MPA 152 Plus • Setup and Operation... -
Page 20: Mounting
Mounting This section provides information about the mounting options for the MPA 152 Plus. Rack Mounting UL Guidelines for Rack Mounting The following Underwriters Laboratories (UL) guidelines are relevant to the safe installation of this product 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... -
Page 21: Rack Mounting Procedure
• Tabletop placement — Place the unit in any convenient location. 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 22: Extron Warranty
Extron Warranty Extron Electronics warrants this product against defects in materials and workmanship for a period of three years from the date of purchase. In the event of malfunction during the warranty period attributable directly to faulty workmanship and/or materials, Extron Electronics will, at its option, repair or replace said products or components, to whatever extent it shall deem necessary to restore said product to proper operating condition, provided that it is returned within the warranty period, with proof of purchase and description of malfunction to: USA, Canada, South America,...
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