Manuale d’uso / di manutenzione del prodotto JM-1P del fabbricante Meyer Sound
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Keep these important operating instructions. Check www .meyerso und.com for updates. OPERATING INSTRUCTIONS JM SERIES JM-1P Arrayable Loudspeaker.
ii DECLARATION OF CONFORMITY ACCORDIN G TO ISO/IEC GUIDE 22 AND EN 45014 © 2009 Meyer Sound. All rights reserved. JM-1P Operating Instructions, PN 05.
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.
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.
v CONTENTS Chapter 1: Introduction 7 How to Use This Manual 7 Introducing the JM-1P Loudspeaker 7 Chapter 2: Power Requirements 9 AC Power Distribution 9 The AC Connectors 9 Power Connector Wiring 10 .
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 JM-1P loudspeakers. In particular , pay close attention to material related to safety issues.
CHAPTER 1: INTRODUCTION 8 The JM-1P's sophisticated onboar d amplification and pro- cessing produces consistent and predictable r esults in any system design. A proprietary two-channel, class AB/H power amplifier with complementary MOSFET output stages yields a total power output of 1275 W (2550 W peak).
9 CHAPTER 2: POWER REQUIR EMENTS The JM-1P loudspeaker combines advanced loudspeaker technology with equally advanced power capabilities. Understanding power distribution, voltage and curr ent requir ements, as well as electrical safety issues, is critical to the safe operation of the JM-1P.
CHAPTER 2: POWER REQUIREMENTS 10 The maximum number of loudspeakers that can be looped from the Loo p Output connector is determined by the volt- age of the power sour ce, the circuit br eaker rating, and the rating of the AC power cable connected to the first JM-1P loudspeaker .
JM-1P OPERATING INSTRUCTIONS 11 When powering up the JM-1P, the following startup events take place over several seconds. 1. Audio output is muted. 2. V oltage is detected and the power supply mode is auto- matically adjusted as necessary . 3. The power supply ramps up.
CHAPTER 2: POWER REQUIREMENTS 12 ELECTRICAL SAFETY ISSUES Pay close attention to these important electrical and safety issues. The JM-1P requir es a grounded outlet. Always use a grounded o utlet and plug. Do not use a ground-lifting adap ter or cut the AC cable ground pin.
13 CHAPTER 3: AMPLIFICATION AND AUDIO The JM-1P low- and high-fr equency drivers are power ed by a proprieta ry two-channel Meyer Sound amplifier with MOSFET output stages. The audio signal is pr ocessed with an electronic cr ossover , correction f ilters for phase and fre- quency response, and driver pr otection circuitry .
CHAPTER 3: AM PLIFICATION AND AUDIO 14 T o calculate the load impedance for the looped loudspeak- ers, divide 10 kOhms (the input impedance for a single JM-1P) by the number of looped loudspeakers. For exam- ple, the load impedance for 10 JM-1P loudspeakers is 1000 ohms (10 kOhms / 10).
JM-1P OPERATING INSTRUCTIONS 15 AMPLIFIER COOLING SYSTEM The amplifier for JM-1P uses natural convection for cooling at low to moderate audio levels; for high audio levels, it uses Meyer Sound’ s proprietary QuietCool fan tec hnology to pre- vent overheating.
CHAPTER 3: AM PLIFICATION AND AUDIO 16.
17 CHAPTER 4: ADDING SUBWOOFERS TO A JM-1P LOUDS PEAKER SYSTEM 700-HP subwoofers can be added to JM-1P loudspeaker systems to enhance the low-frequency r esponse and increase the overall acoustic power of the system in the low- est frequencies.
CHAPTER 4: ADDING SUBWOOFERS TO A JM-1P LOUDSPEAKER SYSTEM 18 USING DIGITAL SIGNAL PROCESSORS Full-range signals can be connected dir ectly to Meyer Sound self-powered loudspeakers b ecause the loudspeak- ers have built-in active crossovers.
19 CHAPTER 5: QUICKFLY RIGGING The JM-1P loudspeaker is compatible with Meyer Sound’ s QuickFly system, a comprehensive collection of custom- designed rigging, flying, and mounting options.
CHAPTER 5: QUICKFLY RIGGING 20 The JM-1P Quick-Release Pins Each JM-1P ships with four quick-rele ase pins that secure the units when they ar e linked.
JM-1P OPERATING INSTRUCTIONS 21 3. Secure the r ear GuideALinks with the quick-release pins stored at the c enter top and center bottom of the loud- speaker .
CHAPTER 5: QUICKFLY RIGGING 22 NOTE: When using M10 knobs to secur e the MP A-JM1 pickup plate to the JM-1P, the sec- ond hanging point fr om the rear is inaccessible.
JM-1P OPERATING INSTRUCTIONS 23 JM-1P Arrays with T wo Pickup Plates T wo MP A-JM1 pickup plates can suspend arrays of 4–6 loudspeakers: For arrays of four JM-1Ps (with 80 degr ees of horizontal coverage), attach the two pickup plates between the first and second, and thir d and fourth loudspeakers.
CHAPTER 5: QUICKFLY RIGGING 24 THE MTG-JM1 V ERTICAL GRID The optional MTG-JM1 vertical grid suspends JM-1P verti- cal arrays of up to six units. The grid was designed specifi- cally for the JM-1P and is compatible with the GuideALinks and quick-release pins included with the JM-1P.
JM-1P OPERATING INSTRUCTIONS 25 THE MDB-JM1 DOLLY BOARD The optional MDB-JM1 dolly boar d transports the JM-1P on caster wheels. Up to three dolly boar ds can be interlocked for transporting up to thr ee linked JM-1Ps.
CHAPTER 5: QUICKFLY RIGGING 26.
27 CHAPTER 6: THE RMS REMOTE MONITORING SYSTEM An optional RMS remote monitoring system module can be installed in the JM-1P, allowing it to be connected to an RMS network. RMS allows real-time monitoring of multiple Meyer Sound self-power ed loudspeakers from a Windows- based computer .
CHAPTER 6: THE RMS REMOTE MONITORING SYSTEM 28 The RMS software displays all loudspeakers on the network in a panel with icons, Meter views, and T ext views that can be customized to suit your needs. Lo udspeaker data is updated 2–5 times per second.
JM-1P OPERATING INSTRUCTIONS 29 Wink LED (Gr een) The green Win k LED lights when a signal is sent from the RMS software b y clicking the Wink button on the loud- speaker’ s icon or on its T ext view . This is useful for identify- ing the physical loudspeaker corr esponding to a loudspeaker icon in the RMS softwar e.
CHAPTER 6: THE RMS REMOTE MONITORING SYSTEM 30.
31 CHAPTER 7: SYSTEM DESIGN AND INTEGRATION T OOLS Meyer Sound offers two compr ehensive tools to assist with the acoustical and functional r equirements of system design and optimization.
CHAPTER 7: SYSTEM DESIGN AND INTEGRATION TOOLS 32 Using MAPP Online Pro MAPP Online Pro is compatible with the following operating systems: ■ Windows ■ Linux ® ■ Unix ® ■ Mac OS ® 10.4 or later Additional system requir ements and recommendations ar e available on the MAPP Online Pro website: http://www .
33 APPENDIX A: OPTIONAL VE AM MULTIPIN CONNECTOR The JM-1P can be order ed from the factory with a VEAM all- in-one connector . VEAM connectors consolidate AC power , audio, and RMS into a single cable, facilitating easy connec- tions and quick setups.
APPENDIX A: OPTIONAL VEAM MULTIPIN CONNECTOR 34.
35 APPENDIX B: OPTIONAL RAIN HOODS A weather -protected version of the JM-1P is available with rain hood kits that safeguar d the loudspeaker’ s electronics from the elements in f ixed, outdoor installations. The rain hood is available in both vertical (PN 40.
APPENDIX B: OPTIONAL RAIN HOODS 36 3. Secure the upper rain hood frame to the amplifier face with the four 8-32 x .25 flat head scr ews, two at the top and two at the bottom.
JM-1P OPERATING INSTRUCTIONS 37 Installing the Horizontal Rain Hood T o install the JM-1P horizontal rain hood: 1. Attach any requir ed cables to the loudspeaker and orient it horizontally . 2. Remove the bottom two pan head scr ews from the amplifier face.
APPENDIX B: OPTIONAL RAIN HOODS 38.
39 APPENDIX C: JM-1P SPECIFICATIONS ACOUSTICA L Operating F requency Range 53 Hz – 18 kHz Note: Reco mmended maximum operating frequenc y range . Response depends on load - ing conditions and r oom acoustics. Frequency Response 56 Hz – 16.5 kHz ±4 dB Note: Measured free field with 1/3 octave frequenc y resolution at 4 meters.
APPENDIX C: JM-1P SPECIFICATIONS 40 Nominal In put Sensi- tivity 0 dBV (1 V rms, 1.4 V peak) cont inuous average is ty pically the onset of limiting for noise and music Input Level Audio source must b.
JM-1P OPERATING INSTRUCTIONS 41 JM-1P COMPLIANCE JM-1P DIMENSIONS W eight W eight 147 lbs (66.68 kg) ENVIRONME NTAL Operating T emperature 0° C to +45° C Non Operati ng T em- perature <–40° C .
APPENDIX C: JM-1P SPECIFICATIONS 42.
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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 © 2009 Meyer Sound Labo ratories In c. 05.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Meyer Sound JM-1P è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Meyer Sound JM-1P - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Meyer Sound JM-1P imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Meyer Sound JM-1P ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Meyer Sound JM-1P, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Meyer Sound JM-1P.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Meyer Sound JM-1P. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Meyer Sound JM-1P insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
