Instruction/ maintenance manual of the product MM-4CEU Meyer Sound
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OPERA TING INSTRUCTIONS INDUSTRIAL SERIES MM-4 Miniatur e Wide-Range Loudspeaker MM-4CEU Contr ol Electr onics Unit Keep these important operating instructions.
ii ® Copyright 2010 Meyer Sound. All rights reserved. Meyer Sound MM-4/MM-4CEU Operating Instructions. The contents of this manual are furnished for informational purposes only , are subject to change without notice, and should not be construed as a commitment by Meyer Sound Laboratories Inc.
iii SYMBOLS USED These symbols indicate important safety or operating features in this booklet and on the chassis: 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this loudspeaker near water .
iv English - T o reduce the risk of electric shock, disconnect the loudspeaker from the AC mains befor e installing audio cable. Reconnect the power cord only after making all signal connections. - Connect the loudspeaker to a two-pole, three-wir e grounding mains receptacle.
v CONTENTS INTRODUCTION The MM-4 Miniature Wide-Range Loudspeaker 1 The MM-4CEU Control Electr onics Unit (Requir ed) 1 CHAPTER 1: Installing the MM-4 Loudspeaker 3 Using the MUB-MM4 U-Bracket 3 Using.
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1 INTRODUCTION As you read this manual, you’ll find figur es and diagrams to help you understand and visualize what you’re r eading. Y ou’ll also find numerous icons that serve as cues to flag important information or warn you against improper or potentially harmful activities.
2 INTRODUCTION The MM-4CEU is specifically designed and requir ed for use in an MM-4 loudspeaker system. In conjunction with professional grade amplifiers, the MM-4CEU pr otects your MM-4 loudspeakers against damaging overload conditions, while ensuring that they meet their published specifications.
3 CHAPTER 1 The following MM-4 mounting options accoommodate a variety of differ ent installation r equirements: The MUB-MM4 U-bracket, which allows the MM-4 to be mounted on virtually any flat surface and enables you to change the angle of the MM-4 with respect to the mounting surface.
4 CHAPTER 1 Standard Connector A Phoenix-style keyed connector is fitted to the indoor version of the MM-4 (Figure 1.3). The connector is wir ed with the left terminal as negative (-) and the right terminal as positive (+), when viewing the loudspeaker from the r ear .
5 CHAPTER 2 The MM-4CEU is a requir ed component for every MM-4 installation. It performs a number of important signal- processing functions to ensur e that the MM-4 meets its published specifications and is protected against damaging overload conditions.
6 CHAPTER 2 AC POWER The MM-4CEU accommodates international power standards in two ranges: 90 to 130 V AC and 180 to 260 V AC, 50/60 Hz. A rear -panel switch selects between the two. ! CAUTION: Be sure to select the corr ect range for your local power standard befor e connecting and operating the MM-4CEU.
7 CHAPTER 2 NOTE: Most source equipment is safe for driving loads no smaller than 10 times the source’ s output impedance. For source equipment with driving capability of 600 ohms, 16 MM-4CEUs could be safely driven in parallel (10 kOhms divided by 16 equals 625).
8 CHAPTER 2 Channel 2 SpeakerSense Channel 1 SpeakerSense Figure 2.2. Connecting the MM-4CEU control electronics unit NOTE: Amplifiers #1 and #2 are the amplifiers with the highest gain.
9 CHAPTER 3 The MM-4 is designed for high-quality distributed sound systems. T o realize the MM-4’ s full capabilities, a direct- drive power amplifier capable of 49 volts rms (70 volts peak) at the rated load impedance presented by the line configuration is requir ed.
10 CHAPTER 3 POWER SUPPL Y Some amplifiers are designed so that the internal power supply rails sag as the load current incr eases. While the amplifier’ s rated continuous output at a given load may appear high, its peak output voltage varies with the load impedance.
11 CHAPTER 4 Meyer Sound of fers two compr eh ensive tool s to assist you with t he ac ousti cal an d fun ction al r equ ir ement s of s ystem design and optimization.
12 CHAPTER 4 The ke y to MAPP Online Pr o’ s value i s the accu racy o f its pr edict ions. Perfo rmanc e pr edi ctions for each Meyer Sound loudsp eaker foun d in M APP O nline Pr o ar e based on a model of th at pr od uct b uilt f r om 360 1/48 th-oc tave–b and measurements taken with a SIM audio analyzer in our anecho ic ch amber .
13 APPENDIX A APPENDIX A MM-4 W eather Pr otected Cable Assembly Pr ocedure Cable Boot Cord Connector Cable Clamp Housing Contact Pins Coupling Ring Step 1: Feed the end of the cable through the boot, cable clamp housing, and coupling ring in the order and position shown.
14 APPENDIX B APPENDIX B MM-4 Specifications Acoustical (MM-4CEU requir ed) Note: T o real ize th e MM-4 ’ s full ca pabili ties, an MM- 4CEU mu st be used.
15 APPENDIX C APPENDIX C MM-4CEU Specifications MM-4 Controller Power -15V Peak Limit RMS Limit Sense A B B A Lo Cut In Out Attn dB B A 1 5 6 h 20 10 8 3 2 4 0 1 5 6 h 20 10 8 3 2 4 0 A Amp 1 B Input .
16 APPENDIX D APPENDIX D MM-4 EN3 Fire Alarm Signaling Specifications -6 -6 -3 -3 140° 160° 90° 20° 40° 0° 180° Rated Horizontal Axis 3m SPEAKER -6 -6 -3 -3 140° 160° 90° 30° 50° 0° 180° Rated V ertical Axis 3m SPEAKER DIRECTIONAL CHARACTERISTIC Per S541 -07 Sec.
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© 2010 Meyer Sound Laboratories Inc. 05.091.012.01 Rev . F Meyer Sound Laboratories Inc. 2832 San Pablo Avenue Berkeley , CA 94702 www .meyersound.com T : +1 510 486.
An important point after buying a device Meyer Sound MM-4CEU (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Meyer Sound MM-4CEU yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Meyer Sound MM-4CEU - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Meyer Sound MM-4CEU you will learn all the available features of the product, as well as information on its operation. The information that you get Meyer Sound MM-4CEU will certainly help you make a decision on the purchase.
If you already are a holder of Meyer Sound MM-4CEU, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Meyer Sound MM-4CEU.
However, one of the most important roles played by the user manual is to help in solving problems with Meyer Sound MM-4CEU. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Meyer Sound MM-4CEU along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
