OPERATING INSTRUCTIONS 1100-LFC Low-Frequency Control Element 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.
FEDERAL COMMUNICATIONS COMMISSION (FCC) STATEMENT This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
IMPORTANT SAFETY INSTRUCTIONS 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 11. Only use attachments/accessories specified by Meyer Sound. 12. Use only with the caster rails or rigging specified by Meyer Sound, or sold with the loudspeaker. Handles are for carrying only. 5. Do not use this loudspeaker near water. 6. Clean only with dry cloth. 7. Do not block any ventilation openings.
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.
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CONTENTS Chapter 1: Introduction How to Use This Manual 1100-LFC Low-Frequency Control Element 9 9 9 Chapter 2: Power Requirements 11 AC Input Connector Wiring AC Power Cables 1100-LFC Voltage Requirements AC Power Distribution 1100-LFC Current Requirements Powering Up the 1100-LFC Electrical Safety Guidelines 11 11 12 12 13 13 14 Chapter 3: Amplification and Audio Audio Connectors Optional XLR 3-pin Audio Connectors Cable Rings TruPower Limiting Amplifier Cooling System Chapter 4: Quickfly Rigging
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CHAPTER 1: INTRODUCTION HOW TO USE THIS MANUAL Make sure to read these operating instructions in their entirety before configuring a loudspeaker system with 1100-LFC 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 The optional MRK-1100 rigging kit, available as a factoryinstalled option or field upgrade, includes captive GuideALinks that allow the loudspeaker to be flown from the MTG-1100 top grid. The GuideALinks, located at the front and rear of the cabinet, are easily set with convenient, pinned handles and slots. The GuideALinks also accommodate reversed units for flown cardioid arrays.
CHAPTER 2: POWER REQUIREMENTS The 1100-LFC loudspeaker 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 1100-LFC. WIRING AC POWER CABLES When wiring AC power cables, use the following wiring scheme: U.S.
CHAPTER 2: POWER REQUIREMENTS 1100-LFC VOLTAGE REQUIREMENTS CAUTION: Due to its expanded power capabilities, the 1100-LFC was engineered to operate only at 220 V AC (208–235 V AC) to reduce current draw. Make sure to use AC power cables with sufficient gauge to operate with stable voltages during peaks and that the AC power source is capable of providing enough power. ! The 1100-LFC operates safely and continuously when its AC voltage stays within 208–235 V AC at 50 or 60 Hz.
1100-LFC OPERATING INSTRUCTIONS 1100-LFC CURRENT REQUIREMENTS The current draw for the 1100-LFC is dynamic and fluctuates as operating levels change. Since different cables and circuit breakers heat up at varying rates, it is important to understand the following types of current ratings and how they affect circuit breaker and cable specifications. ■ Idle Current — The maximum rms current during idle periods.
CHAPTER 2: POWER REQUIREMENTS ELECTRICAL SAFETY GUIDELINES Pay close attention to these important electrical and safety guidelines. ■ The 1100-LFC requires a grounded outlet. Always use a grounded outlet and plug. ■ Do not use a ground-lifting adapter or cut the AC cable ground pin. ■ Make sure the AC power cable for the loudspeaker has the appropriate power plug (on the other end) for the area in which you will operate the loudspeaker.
CHAPTER 3: AMPLIFICATION AND AUDIO The low-frequency drivers in the 1100-LFC are powered by a 2-channel proprietary Meyer Sound amplifier with bridged MOSFET output stages. The audio signal is processed with an electronic crossover, correction filters for phase and frequency responses, and driver protection circuitry. Each channel has peak and rms limiters that prevent driver overexcursion and regulate voice coil temperatures.
CHAPTER 3: AMPLIFICATION AND AUDIO To avoid distortion when looping multiple 1100-LFCs, make sure the source device can drive the total load impedance of the looped loudspeakers. In addition, the source device must be capable of delivering approximately 20 dBV (10 V rms into 600 ohms) to yield the maximum peak SPL over the entire operating bandwidth of the loudspeakers. Most professional audio equipment can transmit these source levels.
1100-LFC OPERATING INSTRUCTIONS by allowing the driver to produce the maximum SPL across its entire frequency range. TruPower limiting also eliminates power compression at high levels over lengthy periods, which helps regulate voice coil temperatures, thereby extending the life of the driver. NOTE: Since TruPower limiting only reduces signal levels to keep voice coil temperatures under a safe margin, signal peaks remain unaffected.
CHAPTER 3: AMPLIFICATION AND AUDIO 18
CHAPTER 4: QUICKFLY RIGGING The 1100-LFC loudspeaker is compatible with Meyer Sound’s QuickFly® rigging system, a comprehensive collection of rigging, flying, and transport hardware. This chapter provides an overview of QuickFly rigging options for the 1100-LFC. For complete information on the rigging hardware, including dimensions, weight, configuration, and load ratings, refer to the MTG-1100 Assembly Guide (PN 05.220.030.01) available at www.meyersound.com.
CHAPTER 4: QUICKFLY RIGGING 1100-LFC STACKED CARDIOID ARRAYS MRK-1100 RIGGING KIT The 1100-LFC can be configured in cardioid arrays to reduce output heard behind the loudspeakers. The loudspeaker’s linearity ensures that cardioid patterns behave accurately even at very high levels. Cardioid arrays are achieved by placing three units coplanar to each other (in either a groundstacked or flown array) with one unit facing the opposite direction.
1100-LFC OPERATING INSTRUCTIONS When linking 1100-LFCs, two quick-release pins are required for each GuideALink: one to secure the link in the bottom unit, and one to secure the link to the top (linked) unit. Eight 1/2 x 1.25-inch quick-release pins (blue) are included with the MRK-1100 rigging kit. Loudspeakers are linked at a fixed splay angle of 0 degrees. The MTG-1100 is symmetrical and its front/rear orientation does not matter when attaching to the 1100-LFC.
CHAPTER 4: QUICKFLY RIGGING MTG-1100 Pickup Configurations MAS-1100 ARRAY SPACER The MTG-1100 top grid accommodates a variety of pickup configurations with its six pickup points, three each on the front and rear of the grid. When possible, use the front and rear pickup points to change the tilt of the grid with the front and rear motors. You can also bridle between pickup points for greater stability, as compared to single front and rear pickup points.
1100-LFC OPERATING INSTRUCTIONS MCF-1100 CASTER FRAME The optional MCF-1100 caster frame safely supports up to three 1100-LFCs for transport, making it easy to assemble and disassemble arrays in blocks of three cabinets. The caster frame’s sturdy construction allows it to be conveniently moved with forklifts. The MCF-1100 can also be used to support 1100-LFCs in groundstacked configurations.
CHAPTER 4: QUICKFLY RIGGING ■ Avoid moving stacks in the front-to-back direction of the 1100-LFCs (the long side); always move stacks sideways to avoid tipping. ■ When lifting an 1100-LFC stack with a forklift, always keep the forks wide and close to the caster frame’s wheels. Failing to do so may bend the caster frame or cause the stack to tip. ■ When groundstacking 1100-LFCs with the caster frame, make sure that all four caster wheels are blocked to prevent the stack from rolling away.
CHAPTER 5: RMS REMOTE MONITORING SYSTEM The 1100-LFC includes an RMS module that allows the loudspeaker to be connected to an RMS network. RMS provides real-time monitoring of multiple Meyer Sound selfpowered 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. NOTE: For the latest RMS system requirements, visit www.meyersound.com.
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/Activity LED on the RMS user panel for that particular loudspeaker.
1100-LFC OPERATING INSTRUCTIONS Wink/Activity LED (Green) RESETTING THE RMS MODULE The green Wink/Activity LED indicates the status of the loudspeaker: You can use the Identify button to reset the 1100-LFC RMS module when powering up the loudspeaker. This will cause the module to be decommissioned from the network. ■ During startup, the LED blinks 10 ten times. ■ If the loudspeaker has not yet been commissioned, the LED is not lit after startup.
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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 Pro, 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 Pro Source Independent Measurement Technique MAPP Online Pro 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: OPTIONAL WEATHER PROTECTION The 1100-LFC is optionally available with weather protection for fixed, outdoor installations. Weather-protected units include a collapsible rain hood that protect’s the loudspeaker’s connectors from direct exposure to rainfall. EXPANDING THE 1100-LFC RAIN HOOD To expand the 1100-LFC rain hood: 1. Remove the rain hood’s velcro straps. 2. Expand the rain hood’s fabric fully upward and outward. 3.
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APPENDIX B: 1100-LFC SPECIFICATIONS ACOUSTICAL Operating Frequency Range 28 Hz – 100 Hz Note: Recommended maximum operating frequency range. Response depends on loading conditions and room acoustics. Frequency Response 30 Hz – 85 Hz ±4 dB Note: Measured free field with 1/3 octave frequency resolution at 4 meters.
APPENDIX B: 1100-LFC SPECIFICATIONS Current Draw Idle Current 0.6 A rms (230 V AC) Maximum Long-Term Continuous Current 10.
1100-LFC OPERATING INSTRUCTIONS 1100-LFC COMPLIANCE FCC Verified Class A 1100-LFC DIMENSIONS 33.00 [838 mm] 52.60 [1336 mm] 20.48 [520 mm] 36.00 [914 mm] 10.65 [270 mm] 16.65 [423 mm] 54.65 [1388 mm] 20.10 [511 mm] 1100-LFC Dimensions NOTE: For dimensions and weight for the MTG-1100 top grid, MAS-1100 array spacer, and MCF-1100 caster frame, refer to the MTG-1100 Assembly Guide (PN 05.220.030.01) available at www.meyersound.com.
APPENDIX B: 1100-LFC SPECIFICATIONS 1100-LFC Dimensions with Rain Hood 8.50 [216 mm] 52.60 [1336 mm] 33.00 [838 mm] 20.48 [520 mm] 10.65 [270 mm] 36.00 [914 mm] 16.65 [423 mm] 54.65 [1388 mm] 41.27 [1048 mm] 6.25 [159 mm] 20.
Meyer Sound Laboratories Inc. 2832 San Pablo Avenue Berkeley, CA 94702 www.meyersound.com T: +1 510 486.1166 F: +1 510 486.8356 © 2013 Meyer Sound Laboratories Inc. 1100-LFC Operating Instructions, PN 05.220.005.
