OPERATING INSTRUCTIONS Acheron® Designer Screen Channel Loudspeaker Keep these important operating instructions. Check www.meyersound.com for updates.
DECLARATION OF CONFORMITY ACCORDING TO ISO/IEC GUIDE 22 AND EN 45014 Manufacturer’s Name: Meyer Sound Laboratories Inc.
SYMBOLS USED These symbols indicate important safety or operating features in this booklet and on the chassis: ! Dangerous voltages: risk of electric shock Important operating instructions Frame or chassis Protective earth ground Pour indiquer les risques résultant de tensions dangereuses Pour indequer important instructions Masse, châssis Terre de protection Warnung vor gefährlicher elektrischer Spannung Wichtige Betriebsanweisung oder Gebrauchsanleitung Rahmen oder Gehäuse Masse Schutzleiter
SAFETY SUMMARY 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. The receptacle must be connected to a fuse or circuit breaker. Connection to any other type of receptacle poses a shock hazard and may violate local electrical codes.
CONTENTS Chapter 1: Introduction How to Use This Manual Acheron Designer Screen Channel Loudspeaker Chapter 2: Power Requirements AC Connectors Wiring for AC Connections AC Power Distribution Acheron Designer Voltage Requirements Powering Up the Acheron Designer Acheron Designer Current Requirements Electrical Safety Guidelines Chapter 3: Amplification and Audio Audio Connectors Limiting On/Status LED Chapter 4: Rigging MYA-DES Cradle-Style Yoke Chapter 5: RMS Remote Monitoring System RMS Software RMS
CONTENTS vi
CHAPTER 1: INTRODUCTION HOW TO USE THIS MANUAL Make sure to read these operating instructions in their entirety before configuring a loudspeaker system with Acheron Designer loudspeakers. 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 cautions: NOTE: A note identifies an important or useful piece of information relating to the topic under discussion.
CHAPTER 1: INTRODUCTION Designed specifically for cinema, the Acheron horn features a very soft roll-off beyond its 80-degree horizontal by 50degree vertical coverage pattern. The extremely wellbehaved horn ensures an accurate acoustic crossover and consistent vertical coverage pattern through the critical crossover range between the low- and high-frequency drivers. The optimized crossover point places most of the dialog in the horn, which is ideal for cinema applications.
CHAPTER 2: POWER REQUIREMENTS The Acheron Designer combines advanced loudspeaker technology with equally advanced power capabilities. Understanding power distribution, voltage and current requirements, and electrical safety guidelines is critical to the safe operation of the Acheron Designer. AC CONNECTORS The Acheron Designer user panel includes 3-pole, PowerCon AC connectors.
CHAPTER 2: POWER REQUIREMENTS WIRING FOR AC CONNECTIONS AC POWER DISTRIBUTION The Acheron Designer requires a grounded outlet. To operate safely and effectively, it is extremely important that the entire system be properly grounded.
ACHERON DESIGNER OPERATING INSTRUCTIONS ACHERON DESIGNER VOLTAGE REQUIREMENTS The Acheron Designer operates safely and continuously when the AC voltage stays within 100–264 V AC at 50 or 60 Hz. The loudspeaker can withstand continuous voltages up to 275 volts and allows any combination of voltage to GND (neutral-line-ground or line-line-ground).
CHAPTER 2: POWER REQUIREMENTS ■ Burst Current — 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 for calculating the peak voltage drop in long AC cable runs according to the following formula: ELECTRICAL SAFETY GUIDELINES Pay close attention to these important electrical and safety guidelines. ■ The Acheron Designer requires a grounded outlet. Always use a grounded outlet and plug.
CHAPTER 3: AMPLIFICATION AND AUDIO The Acheron Designer’s low- and high-frequency drivers are powered by an extremely efficient onboard two-channel, Class-D amplifier that uses minimal AC power when idle. Internal signal processing includes a complex crossover, frequency and phase correction, and limiters that prevent driver overexcursion and regulate voice coil temperatures, ensuring maximum driver lifespan.
CHAPTER 3: AMPLIFICATION AND AUDIO Loop Output Connector LIMITING The male XLR Loop output connector allows multiple Acheron Designers to be looped from a single audio source. For applications that require multiple Acheron Designers, connect the Loop output of the first unit to the Input of the second, and so forth. When source levels for the Acheron Designer exceed optimum input levels for its drivers, limiting is engaged and is indicated by the two Limit LEDs on the rear panel.
ACHERON DESIGNER OPERATING INSTRUCTIONS ON/STATUS LED Heat Sink Ventilation Requirements During normal operation, the Acheron Designer’s On/Status LED is green. If the loudspeaker’s internal temperature reaches 75° C (167° F), the LED turns solid yellow and the loudspeaker’s gain is reduced by 3 dB.
CHAPTER 3: AMPLIFICATION AND AUDIO ■ When installing the Acheron Designer in a soffit with the loudspeaker 1 inch from the back of the soffit (see Figure 3), allow at least 3 inches above the loudspeaker for ventilation. ■ When installing the Acheron Designer in a baffle wall with no opening in the front of the wall for ventilation (see Figure 4), allow for plenty of ventilation above the loudspeaker within the baffle wall. 3.00 [76 mm] 1.
CHAPTER 4: RIGGING Important Safety Considerations! When installing Meyer Sound loudspeakers and subwoofers, the following precautions should always be observed: ■ All Meyer Sound products must be used in accordance with local, state, federal, and industry regulations. It is the owner’s and user’s responsibility to evaluate the reliability of any mounting and rigging method for their application. Mounting and rigging should only be carried out by experienced professionals.
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CHAPTER 5: RMS REMOTE MONITORING SYSTEM The Acheron Designer is optionally available with the RMS remote monitoring system module, allowing it to be connected to an RMS network. RMS allows real-time monitoring of multiple Meyer Sound self-powered loudspeakers from a Windows-based computer. The RMS host computer communicates with Meyer Sound loudspeakers (equipped with RMS modules) via a simple twisted pair network, or an Ethernet network using an FT-10 to Ethernet adapter.
CHAPTER 5: RMS REMOTE MONITORING SYSTEM RMS software displays all loudspeakers on the network in a panel with icons, Meter views, and Text views that can be customized to suit your needs. Loudspeaker data is updated 2–5 times per second. Individual loudspeakers can be physically identified with the Wink option in RMS, which lights the Wink LED on the RMS module for that particular loudspeaker.
ACHERON DESIGNER OPERATING INSTRUCTIONS Wink/Activity LED (Green) RMS Network Connectors The green Wink/Activity LED indicates the status of the loudspeaker: The two Weidmuller connectors transfer data to and from the RMS network. Two connectors are provided to allow for easy connection of multiple (daisy-chained) loudspeakers on the network. Included with each RMS-equipped loudspeaker are RMS cable connectors and mounting blocks for constructing RMS cables.
CHAPTER 5: RMS REMOTE MONITORING SYSTEM 22
CHAPTER 6: SYSTEM DESIGN AND INTEGRATION TOOLS Meyer Sound offers two comprehensive tools to assist with the acoustical and functional requirements of system design and optimization. This chapter introduces MAPP Online Cinema, Meyer Sound’s patented online acoustical prediction tool, and SIM 3, a comprehensive system for measurement and analysis.
CHAPTER 6: SYSTEM DESIGN AND INTEGRATION TOOLS Using MAPP Online Cinema Source Independent Measurement Technique MAPP Online Cinema is compatible with the following operating systems: The SIM 3 audio analyzer implements Meyer Sound’s source independent measurement technique, a dual-channel method that accommodates statistically unpredictable excitation signals. Any excitation signal within a desired frequency range can be used to obtain highly accurate measurements for acoustical or electronic systems.
APPENDIX A: ACHERON DESIGNER SPECIFICATIONS ACOUSTICAL Operating Frequency Range 37 Hz – 18 kHz Note: Recommended maximum operating frequency range. Response depends on loading conditions and room acoustics. Frequency Response 38 Hz – 17 kHz ±4 dB Note: Measured free field with 1/3 octave frequency resolution at 4 meters. Phase Response 230 Hz to 17 kHz ±30° Maximum Peak SPL 130 dB Note: Measured free field with music referred to 1 meter.
APPENDIX A: ACHERON DESIGNER SPECIFICATIONS Output Power 700 W total (550 W low channel, 250 W high channel) Note: Amplifier wattage rating based on the maximum unclipped burst sine-wave RMS voltage the amplifier will produce into the nominal load impedance: low-frequency channel, 33 V rms into 2 ; high-frequency channel, 33 V rms into 8 .
ACHERON DESIGNER OPERATING INSTRUCTIONS ACHERON DESIGNER COMPLIANCE ACHERON DESIGNER DIMENSIONS 14.96 [380 mm] 6.00 [152 mm] 6.96 [177 mm] 19.00 [483 mm] 12.18 [309 mm] 25.00 [635 mm] 25.38 [645 mm] 13.25 [337 mm] 14.00 [356 mm] 12.25 [311 mm] 14.58 [370 mm] 3.51 [89 mm] 5.25 [133 mm] 11.60 [295 mm] Acheron Designer Weight Without Grille Frame 76.0 lbs (34.5 kg) With Grille Frame 78.0 lbs (35.
APPENDIX A: ACHERON DESIGNER SPECIFICATIONS ø0.56 [ø14 mm] 14.96 [380 mm] 2.00 [51 mm] 19.00 [483 mm] 24.13 [613 mm] 6.96 [177 mm] 12.18 [309 mm] 29.82 [757 mm] 25.38 [645 mm] 27.62 [702 mm] 22.00 [559 mm] 9.00 [229 mm] 5.25 [133 mm] Acheron Designer Weight 3.00 [76 mm] Acheron Designer Dimensions with MYA-DES Cradle-Style Yoke 28 Without MYA-DES Yoke 76.0 lbs (34.5 kg) With MYA-DES Yoke 104.5 lbs (47.
Meyer Sound Laboratories Inc. 2832 San Pablo Avenue Berkeley, CA 94702 www.meyersound.com T: +1 510 486.1166 F: +1 510 486.835 © 2012 Meyer Sound. All rights reserved. Acheron Designer Operating Instructions, PN 05.211.005.
