Manuel d'utilisation / d'entretien du produit M3D du fabricant Meyer Sound
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OPERATING INSTRUCTIONS M SERIES M3D™ Line Array Loudspeaker M3D-Sub Directional Subwoofer.
D ECLARATION OF C ONFORMITY A CCORDING TO ISO/IEC G UIDE AND EN 45014 The Manufacturer: Meyer Sound Laboratories, Inc. 2832 San Pablo Avenue Berkeley, California 94702-2204, USA Declares that the prod.
S YMBOLS U SED These symbols indicate important safety or operating features in this booklet and on the chassis. I MPORTANT S AFETY I NSTRUCTIONS 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions.
S AFETY S UMMARY English – To reduce the risk of electric shock, disconnect 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 two-pole, three-wire grounding mains receptacle.
C ONTENTS Introduction 1 AC Power 2 AC Power Distribution 2 Voltage Requirements 2 Current Requirements 3 Power Connector Wiring Conventions 3 Safety Issues 5 Audio Input 5 Amplification and Protectio.
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Operating Instructions Meyer Sound Laboratories Inc M3D ™ Line Array • 1 I NTRODUCTION The M3D Line Array is a part of the Meyer Sound M Series, which is a fully integrated line of loudspeakers that brings singular advantages to real-world applications.
2 • M3D ™ Line Array Meyer Sound Laboratories Inc Information and specifications are applicable as of the date of printing. Updates and supplementary information are posted on the Meyer Sound web site at: http://www.meyersound.com or you may contact Meyer Sound Technical Support at: Tel: 510.
Meyer Sound Laboratories Inc M3D ™ Line Array • 3 If the voltage decreases below the lower boundary of either operating range (brownout), the supply uses stored energy to continue functioning briefly. The unit turns off only if the voltage does not increase above the threshold before the storage circuits are depleted.
4 • M3D ™ Line Array Meyer Sound Laboratories Inc For M3D or M3D-Sub loudspeakers fitted with the VEAM multipin connector please refer to the Meyer Sound document, VEAM Cable Wiring Reference, part number 06.033.113, for the wiring conventions and pinouts for the AC, audio, and RMS connections.
Meyer Sound Laboratories Inc M3D ™ Line Array • 5 S AFETY I SSUES Pay close attention to these important electrical and safety issues. A UDIO I NPUT The M3D or M3D-Sub presents a 10k ohm balanced .
6 • M3D ™ Line Array Meyer Sound Laboratories Inc The input impedance for a single M3D or M3D-Sub is 10k ohms; if n represents the number of M3D or M3D-Sub loudspeakers in an array, paralleling the inputs of n M3Ds or M3D-Subs will produce a balanced input load of 10k ohms divided by n .
Meyer Sound Laboratories Inc M3D ™ Line Array • 7 M3D-Sub Interconnections Each front 4 ohm, 18-inch, low-frequency driver is powered by one channel of the HP-4/M3D-Sub amplifier; also, each rear 8 ohm, 15-inch low-frequency driver is powered by one amplifier channel.
8 • M3D ™ Line Array Meyer Sound Laboratories Inc M3D Peak Limiter When engaged, the Peak Limiter prevents signal peaks from causing distortion in the high channel, preserving headroom and maintaining smooth frequency response at high levels.
Meyer Sound Laboratories Inc M3D ™ Line Array • 9 Two variable-speed primary fans run continuously with an inaudible operating noise of 22 dBA at 1 m at their slowest speed. The primary fans begin increasing speed when either of the two heatsinks reaches 42˚C.
10 • M3D ™ Line Array Meyer Sound Laboratories Inc Removing the M3D/M3D-Sub Amplifier If you need to remove the M3D amplifier, you must first remove the rain hood, as follows: 1. Using a #2 Phillips screwdriver, remove all eight screws from the rain hood.
Meyer Sound Laboratories Inc M3D ™ Line Array • 11 H YBRID L INE A RRAYS The M3D is a high-powered BroadbandQ™ loudspeaker system. In order to effectively array, drive, and optimize a system to produce optimal results, it’s important to understand how a hybrid line array loudspeaker works.
12 • M3D ™ Line Array Meyer Sound Laboratories Inc With these two technologies (low-frequency line array and high-frequency wave guide) combined in a single product, it's important to understand how to best electronically drive a hybrid line array.
Meyer Sound Laboratories Inc M3D ™ Line Array • 13 Figure 22. Wiring diagram of a typical M3D installation DIGITAL DELAY (1) 2-IN x 4-OUT 60 - 600 HI CUT LO CUT OUTPUT INPUT CLIP POWER 20 - 200 CU.
14 • M3D ™ Line Array Meyer Sound Laboratories Inc C ABLING One method of cabling the system is using the Meyer Sound/VEAM cable system. This system incorporates power, signal, and RMS monitoring system all in one heavy-duty cable and connector per M3D cabinet.
Meyer Sound Laboratories Inc M3D ™ Line Array • 15 When the two are driven with the same signal but the M3D-Sub is attenuated by 6 dB, the response is identical to the M3D Line Array alone but extends to 30 Hz, as shown in Figure 25.
16 • M3D ™ Line Array Meyer Sound Laboratories Inc Figure 27 shows an LD-2 line driver configured to produce the same results as the LD-1A line driver shown in Figure 26. The comparison plot when using these configurations is shown Figure 28. Figure 26.
Meyer Sound Laboratories Inc M3D ™ Line Array • 17 SIM ® S YSTEM II SIM System II is a powerful, compact instrumentation product line comprising the SIM-2201 Sound Analyzer, SIM-2403 Interface Network, and a selection of software options, microphones and accessory cables.
18 • M3D ™ Line Array Meyer Sound Laboratories Inc M EYER S OUND MAPP O NLINE ™ MAPP (Multipurpose Acoustical Prediction Program) Online is a powerful, cross-platform, Java-based application for accurately predicting the coverage pattern, frequency response, impulse response, and maximum SPL output of arrayed Meyer Sound loudspeakers.
Meyer Sound Laboratories Inc M3D ™ Line Array • 19 Figure 29. Sample RMS display panel.
20 • M3D ™ Line Array Meyer Sound Laboratories Inc A PPENDIX A - M3D L INE A RRAY S PECIFICATIONS Table 2. M3D Line Array Specifications Acoustical Note: The low-frequency power response of the sy.
Meyer Sound Laboratories Inc M3D ™ Line Array • 21 Audio input Type Differential, electronic balanced Maximum common mode range ±15 V DC, clamped to earth for voltage transient protection Connect.
22 • M3D ™ Line Array Meyer Sound Laboratories Inc Burst current (<1 sec) 32 A RMS (115 V) 16 A RMS (230 V) 36A RMS (100 V) Note: AC power cabling must be of sufficient gauge so that under burst current conditions, cable transmission losses do not drop voltage below specified operating range at the speaker.
Meyer Sound Laboratories Inc M3D ™ Line Array • 23 A PPENDIX B - M3D-S UB D IRECTIONAL S UBWOOFER S PECIFICATIONS Table 3. M3D-Sub Directional Subwoofer Acoustical Operating frequency range ±4dB .
24 • M3D ™ Line Array Meyer Sound Laboratories Inc Cooling Forced air cooling, four fans total, two ultra high-speed reserve fans AC Power AC power connector 250VAC NEMA L6-20 (twistlock) inlet or.
Meyer Sound Laboratories Inc M3D ™ Line Array • 25 Figure 31. M3D-Sub Directional Subwoofer physical dimensions Weight Shipping weight Net: 395 lbs (179 kg) Net: 480 lbs (219 Kgs) Safety Agency Recognitions CE Compliant UL Listed IEC 60065 (1998) Compliant Table 3.
C ONTACT I NFORMATION Meyer Sound Laboratories, Inc. 2832 San Pablo Avenue Berkeley, CA 94702 tel: 510.486.1166 fax: 510.486.8356 e-mail: techsupport@meyersound.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Meyer Sound M3D c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Meyer Sound M3D - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Meyer Sound M3D, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Meyer Sound M3D va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Meyer Sound M3D, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Meyer Sound M3D.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Meyer Sound M3D. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Meyer Sound M3D ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
