Meyer Sound MPS-488 manuale d’uso

Keep these important operating instructions. Check www .meyerso und.com for updates. OPERATING INSTRUCTIONS INDUSTRIAL SERIES MM-4XP Miniatur e Loudspeaker MPS-488 Power Supply[...]

ii DECLARATION OF CONFORMITY ACCORDIN G TO ISO/IEC GUIDE 22 AND EN 45014 Manufacturer’ s Name: Meyer Sound Laboratories Inc. Manufacturer’ s Address: 2832 San Pablo Avenue Berkeley , CA 94702-2204, USA Declares that the products Product Name: MM-4XP MPS-488 P MPS-488 E Product Options: All Conforms to the follow ing Product Specifications Safet[...]

iii SYMBOLS USED These symbols indicate important safety or operating featu res in this booklet and on the chassis: IMPORTANT SAFETY INSTRUCTIONS 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all inst ructions. 5. Do not use this loudspeaker near water . 6. Clean only with dry cloth. 7. Do not block any ven[...]

iv SAFETY SUMMARY English ■ T o reduce the risk of electric shock, dis- connect the loudspeaker from the AC mains before installing audio cable. Reconnect the power cord only after making all signal connections. ■ Connect the loudspeaker to a tw o-pole, three-wir e grounding mains receptacle. The receptacle must be connected to a fuse or circui[...]

v CONTENTS Chapter 1: Introduction 7 How to Use This Manual 7 the MM-4XP Miniature Loudspeaker 7 Chapter 2: The MPS-488 Power Supply 9 The MPS-488 Front Panel 9 The MPS-488 Rear Panel 9 MPS-488 Current Draw 12 Safety Issues 13 Chapter 3: The MM-4XP Loudspeaker 15 The MM-4XP Connector 15 The MM-4XP LED 16 Connecting MM-4XP Loudspeakers to the MPS-48[...]

CONTENTS vi[...]

7 CHAPTER 1: INTR ODUCTION HOW TO USE THIS MANUAL Make sure to r ead these operating instructions in their entirety befor e configuring a loudspeaker system with MM-4XPs. In particular , pay close attention to material related to safety issues. As you read these operating instructions, you will encounter the following icons for notes, tips, and cau[...]

CHAPTER 1: INTRODUCTION 8 MM-4XP loudspeaker systems requir e an MPS-488 exter nal power supply . The single-space 19-inch rack unit receives eight channels of balanced audio fr om its XLR female inputs and routes the au dio, along with 48 V of DC power , to its eight Channel Outputs. The outputs — equ ipped with either Phoenix 5-pin male connect[...]

9 CHAPTER 2: THE MPS-488 POWER SUPPLY The MPS-488 power supply was designed to d eliver DC power and balanced audio to up to eight MM-4XP lo ud- speakers. The MPS-488 is a switched-mode regulat ed power supply that occupies one space in a standard 19-inch rack. There ar e two MPS-488 models available: the MPS-488 P , which has Phoenix 5-pin male ou[...]

CHAPTER 2: THE MPS-488 POWER SUPPLY 10 Channel Inputs Up to eight channels of balanced audio ar e received via the MPS-488’ s eight Channel Inputs. The inputs are equipped with XLR female connectors (pin 1, gr ound; pin 2, signal positive; pin 3, signal negative) and have an input imped- ance of 10 kOhms. Make sure to use standard balanced XLR ca[...]

MM-4XP OPERATING INSTRUCTIONS 11 ■ When Link switches 1 and 3 are on and Link switch 2 is off, Cha nnel Input 1 is routed to Channel Outputs 1–2, and Channel Input 3 is r outed to Channel Outputs 3–4. Channel Inputs 2 and 4 are inact ive. Common Routing Examples T able 1 lists some of the more common ro uting applications for the MPS-488 Link[...]

CHAPTER 2: THE MPS-488 POWER SUPPLY 12 Channel Outputs The eight Channel Outputs deliver DC power (48 V DC) and balanced audio to up to eight loudspeakers. Each Channel Output can drive one MM-4XP loudspeaker and is equipped with either Phoenix 5-pin male connectors (on the MPS-488 P model) or EN3 5-pin male connectors (on the MPS-488 E model). CAU[...]

MM-4XP OPERATING INSTRUCTIONS 13 ■ Burst Curr ent — The maximum rms current during a period of around one second. The Burst Current is used as a rating for magnetic breakers. It is also used fo r cal- culating the peak voltage dr op in long AC cable runs according to t he following formula: V pk (drop) = I pk x R (cable total) ■ Ultimate Shor[...]

CHAPTER 2: THE MPS-488 POWER SUPPLY 14[...]

15 CHAPTER 3: THE MM-4XP LOUDSPEAKER THE MM-4XP CONNECTOR The MM-4XP r eceives DC power and balanced audio fr om a EN3 5-pin male connector on its r ear panel. The connector’ s five pins include two for DC power (negative and positive) and thr ee for balanced audio (shield, negative, and po sitive). T o function pr operly , the MM-4XP requires 48[...]

CHAPTER 3: THE MM-4XP LOUDSPEAKER 16 MM-4XP Current Draw and Cable Require- ments Each MM-4XP loudspeaker draws a maximum curr ent of 0.7 A rms and 2.2 A peak fr om the 48 V DC output of the MPS-488. The current draw for the MM-4XP is dynamic and fluctuates as operating levels change. The cabling between the MM-4XP and the MPS-488 adds r esistance [...]

MM-4XP OPERATING INSTRUCTIONS 17 The MM-4XP performs within its acoustical specifications at normal temperatures when the MM-4XP LED is g reen, or if the LED turns yellow for two seconds or less and then turns green for a t least one second. If the LED remains yellow for longer than three seconds, that loudspeaker enters har d lim- iting where: ■[...]

CHAPTER 3: THE MM-4XP LOUDSPEAKER 18 CAUTION: Make sure the MM-4XP loud- speaker cables are wir ed correctly . For details on assembling loudspeaker cables, see Appendix C, “MM-4XP Cable Assembly .” 5. Power on the MPS-488 and monitor the LEDs on the front panel to verify connections (for more information, see “V oltage and Load Current LEDs [...]

19 CHAPTER 4: MOUNTING THE MM-4XP IMPORTANT SAFETY CONSIDERATIONS When installing Meyer Sound loudspeakers, the following precautions should always be o bserved: ■ All Meyer Sound products must be u sed in accordance with local, state, federal, and industry r egulations. It is the owner’ s and user’ s responsibilit y to evaluate the reli- abi[...]

CHAPTER 4: MOUNTING THE MM-4XP 20[...]

21 APPENDIX A: SPECIFICATIONS MM-4XP SPECIFICATIONS Operating Frequency Range 120 Hz – 18 kHz Note: Recommended maximum operating frequency range. Response depe nds on loading conditions and room acoustics. Frequency Response 160 Hz – 16 kHz ±4 dB Note: Measured free-fi eld with pink noise at 1 meter , 1/3rd octave resolution. Maximum Peak SPL[...]

APPENDIX A: SPECIFICATIONS 22 MPS-488 SPECIFICATIONS Audio Inputs 8 channels of XLR fe male connectors with Link sw itches to route to outputs Outputs 8 channels of Phoenix 5-pin male co nnectors or EN3 5-pin fe male connectors (3 pins for balanced audio, 2 pins for DC power) Output V oltage 8 channels of 48 V DC (2 .0 A, fuse protected) Front Pane[...]

23 APPENDIX B: MM-4XP ACCESSORIES MM-4XP ACCESSORIES The following MM-4XP accessories ar e available from Meyer Sound. MM-4XP CABLE CONNECTORS AND ADAPTERS The following MM-4XP cable connectors and adapters ar e available from Meyer Sound. MM-4XP Accessories Part Number Accessory Not es 09.183.001.01 MPS-488 P external power supply (with US power c[...]

APPENDIX B: MM-4XP ACCESSORIES 24 MM-4XP CABLES The following MM-4XP cables are available f rom Meyer Sound. NOTE: All MM-4XP loudspeaker cables and bulk cable use Belde n 1502R (regular) or Belden 1502P (plenum) cable. Belden 1502 is a composite cable comprised of two 18 A WG wires for DC power , two 22 AWG wir es for balanced audio, and one 24 A [...]

25 APPENDIX C: MM-4XP CABLE AS SEMBLY ASSEMBLING EN3-TO-PHOENIX LOUDSPEAKER CABLES T o connect the MM-4XP loudspeaker directly to t he MPS-488 P power supply , you need an EN3 5-pin female to Phoenix 5-pin female cable. The following pr ocedure documents how to a ssemble this cable. If you ar e starting with an EN3-to-pig- tail cable (included with[...]

APPENDIX C: MM-4XP CABLE ASSEMBLY 26 4. Disassemble the EN3 5-pin female connector and feed one end of the cable through the boot, cable clamp housing, and coupling ring. 5. If the EN3 end of the cable has not been stripped, strip the outer shielding 1” and then strip the black, red, b lue, and white wires .275”. 6. Solder the five exposed cond[...]

MM-4XP OPERATING INSTRUCTIONS 27 ASSEMBLING EN3-TO-EN3 LOUDSPEAKER CABLES T o connect the MM-4XP loudspeaker directly to t he MPS-488 E power supply , you need an EN3 5-pin female to EN3 5-pin male cable. The following pr ocedure documents how to assemble t his cable. If you are starting with an EN3-to-pigtail cab le (included with the MM-4XP), you[...]

APPENDIX C: MM-4XP CABLE ASSEMBLY 28 3. Solder the five exposed conductors to the five pins on the EN3 cor d connector using the following wiring scheme. 4. Reassemble the EN3 5-pin male connector: ■ Align the coupling ring’ s side notches with the cord connector’ s side notches and slide the couple ring onto the cord connector . ■ Carefull[...]

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Meyer Sound Labo ratories In c. 2832 San Pablo Avenue Berkeley, CA 94702 www.meyersound.com T: +1 510 486.1166 F: +1 510 486.8356 © 2007 Meyer Sound Labo ratories In c. 05.163.005.01 A[...]