ASSEMBLY GUIDE MG-MICA MULTIPURPOSE GRID AND ACCESSORIES M SERIES
© 2005 Meyer Sound. All rights reserved. MG-MICA Multipurpose Grid and Accessories Assembly Guide The contents of this manual are furnished for informational purposes only, are subject to change without notice, and should not be construed as a commitment by Meyer Sound Laboratories Inc. Meyer Sound assumes no responsibility or liability for any errors or inaccuracies that may appear in this manual.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES CONTENTS This assembly guide provides instructions on how to safely assemble and use the MG-MICA multipurpose grid and accessories. In addition to descriptions of the MG-MICA grid’s major components, this guide will show how the components work together with examples of common uses. 1. Safety, Regulatory, Inspection & Maintenance Information 4 2. The MICA GuideALink™ Rigging System 6 MICA GuideALinks 6 The MG-MICA Multipurpose Grid 8 3.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES 1. SAFETY, REGULATORY, INSPECTION & MAINTENANCE INFORMATION Please read this Statement carefully and in its entirety. It contains important information regarding safety issues, including guidelines for general safe use of rigging systems as well as advisories on government regulations and liability laws. SCOPE OF THIS MANUAL Although this manual contains much useful information on rigging in general, it does not claim to be a comprehensive resource on the subject.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES INSPECTION AND MAINTENANCE The Meyer Sound QuickFly systems are an assembly of mechanical devices, and are therefore subject to wear and tear over prolonged use, as well as damage from corrosive agents, extreme impact, or inappropriate use. BECAUSE OF THE SAFETY ISSUES INVOLVED, USERS MUST ADOPT AND ADHERE TO A SCHEDULE OF REGULAR INSPECTION AND MAINTENANCE. IN TOURING APPLICATIONS, KEY COMPONENTS MUST BE INSPECTED BEFORE EACH USE.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES 2. THE MICA™ GUIDEALINK™ RIGGING SYSTEM MICA loudspeakers feature Meyer Sound’s QuickFly® rigging system with rugged, reliable and simple components. QuickFly facilitates deploying the loudspeakers in a variety of applications. MICA is designed to be rigged using professional components, and its custom front and rear GuideALinks rigidly couple the individual MICA enclosures for flying, stacking, or transporting in stacks while still in various splayed positions.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES CAUTION: As part of the regular inspection and maintenance procedure for MICA loudspeakers, check each of the captive GuideALink pins to ensure that they are tight by turning them counterclockwise by hand. If a pin turns, it must be reset into the link using Loctite 290, and be allowed to cure for 48 hours and retested before the loudspeaker is flown.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES 3. THE MG-MICA MULTIPURPOSE GRID The MG-MICA multipurpose grid allows multiple MICA compact high-power curvilinear array loudspeakers to be flown or ground-supported in numerous configurations. In addition, the MG-MICA grid can be used with 600-HP subwoofers that have been fitted with MRF-600 rigging frames. In flown configurations, the first MICA loudspeaker in the array is always connected to the MG-MICA grid at the 0° position.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES MG-MICA Multipurpose Grid Dimensions and Weight: 41.98 [1066.20mm] 6.55 [166.28mm] 35.00 [889.00mm] 20.99 [533.10mm] 4.99 [126.70mm] 5.00 [127.00mm] 32.00 [812.80mm] MG-MICA Multipurpose Grid Weight: 113.5 lbs (51.4 kg) Meyer Sound Laboratories Inc. www.meyersound.com T: +1 510 486.1166 F: +1 510 486.8356 PN: 05.147.034.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES ATTACHING THE GRID LINKS Please note that the front and rear links are different. The rear link is wider than the front. Also, note that in the rear link the spacing between the two end holes and the center hole is not identical; the shorter distance should go up into the grid in order to pin correctly. The arrow stamped on the link indicates which way goes into the grid.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES 4. USING THE MG-MICA MULTIPURPOSE GRID TO FLY MICA LOUDSPEAKER ARRAYS MG-MICA GRID WITH MICA LOUDSPEAKERS IN FORWARD POSITION FOR MAXIMUM DOWNTILT MICA loudspeakers can be connected to the MG-MICA grid in the “forward” position in order to obtain the maximum amount of downtilt for the array. The front and rear links are pinned to the grid on both sides in the positions labeled “MG-MICA FRONT LINK Maximum Downtilt” and “MG-MICA REAR LINK Maximum Downtilt”.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES MG-MICA GRID WITH MICA LOUDSPEAKERS IN REARWARD POSITION FOR MAXIMUM UPTILT MICA loudspeakers can be connected to the MG-MICA grid in the “rearward” position in order to obtain the maximum amount of uptilt for the array. The front and rear links are pinned to the grid on both sides in the positions labeled “MG-MICA FRONT LINK Maximum Uptilt” and “MG-MICA REAR LINK Maximum Uptilt”.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES MG-MICA PICKUP CONFIGURATIONS The MG-MICA grid can accommodate a variety of pick-up configurations using its six pickup points – three on each side of the grid. When possible it is recommended to use front and rear pick up points in order to be able to change the tilt of the grid and the array by using the front and rear motors. NOTE: The design of the MG-MICA allows the use of any pickup configuration without affecting the load rating.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES In addition, the MG-MICA can be suspended from a single motor. However, limitations like the load rating of the motor and the pickup point in the ceiling “above the hook” need to be taken into consideration. Also, it becomes more difficult to change the tilt angle of the grid. Common pickup configurations using one motor: Figure 4.6. Single motor, center front and rear Figure 4.7.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES LOAD RATINGS OVERVIEW All of the load ratings in this assembly guide take the following into consideration: Prerequisite Conditions The following conditions must be met to achieve the load ratings shown in Tables 1, 2 and 3: ■ Any combination of pick-up points can be used. If a bridle is used between pick-up points on the MG-MICA, the angle of the bridle at the apex is no greater than 90 degrees. ■ The optional MGCP-MICA center point rigging beam is not used.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES Table 1.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES USING MAPP ONLINE PRO TO DETERMINE THE CENTER OF GRAVITY (COG) OF THE ARRAY MAPP Online Pro is a powerful acoustical prediction software that is an invaluable tool when designing a system. This software is a cross-platform, Java-based application for accurately predicting the coverage pattern, frequency response, impulse response, and maximum SPL output of single or arrayed Meyer Sound loudspeakers.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES In order to give a visual representation and help to make modifications to the array’s configuration, the COG and where it falls in the grid can be displayed in the sound field. Please follow the next steps to see the COG graphically displayed:: 1. If not active, Go to View > Array COG (Center of Gravity) and place a check mark next to it. You will see a magenta line that goes from the center of gravity of the array to the top of the sound field. Refer to Figure 4.8.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES Table 2.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES Table 3.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES Figure 4.12. Example of a COG in Zone 1 Figure 4.13. Zone 1 COG showing array Figure 4.14. Zone 1 Center of Gravity in the Edit Loudspeaker Systems dialog Meyer Sound Laboratories Inc. www.meyersound.com T: +1 510 486.1166 F: +1 510 486.8356 PN: 05.147.034.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES 5. USING THE MG-MICA GRID TO GROUND-STACK MICA LOUDSPEAKER ARRAYS In addition to its suspending capabilities, the MG-MICA grid forms a secure base for ground-stacking when the leveling feet are installed. For ground-stacking, secure the GuideALinks in the bottom MICA enclosure to the MG-MICA grid using the red button 3/8" x 1.5" quick-release pins.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES Table 4. MICA Link Positions to MG-MICA (ground-stacked) Rear Front Angle for MICA* 0 0 -2.5° 0.5 0 -2° 1 0 -1.5º 1.5 0 -1° 2 0 -0.5° 2.5 0 0° 3 0 +0.5° 4 0 +1.5° 5 0 +2.5° 6 0 +3.5° *Negative angles are downtilt and positive angles are uptilt angles relative to the grid.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES 6. 600-HP RIGGING 600-HP subwoofers equipped with the optional MRF-600 rigging frame can be linked directly to the MG-MICA grid and to MICA loudspeakers to form flown and ground-stacked arrays. The 600-HP’s captive QuickFly rigging hardware – like MICA’s – features rigid GuideALinks contained within recessed guides in the bottom front and rear corners of the enclosure. A slot and convenient pinned knob allow each link to be moved and pinned for arraying and storage.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES RIGGING CONFIGURATIONS AND TILT ANGLES The resulting angle from the positioning of the front and rear links depends on whether they are being used to link to other 600-HP subwoofers or to MICA array loudspeakers. 600-HP to 600-HP Flown When 600-HPs are flown, the GuideALinks allow a variety of combinations. However, the most common is at 0 degrees.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES NOTE: Not all mechanically possible combinations between two 600-HP are useful — for example, concave angles between two subs. These combinations are possible because the 600-HP rigging was designed to also allow a wide number of combinations between 600-HP when flown or ground-stacked with MICA loudspeakers. Ground-stacked When 600-HPs are ground-stacked, the GuideALinks allow a variety of combinations. However, the most common is at 0 degrees.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES 0 -3 +0 +3 +0 -6 degrees 0 +0 15 +0 +3 +15 degrees 12 9 6 3 0 -3 Figure 6.3. 600-HP to MICA flown configuration maximum angles Meyer Sound Laboratories Inc. www.meyersound.com T: +1 510 486.1166 F: +1 510 486.8356 PN: 05.147.034.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES 600-HP to MICA Ground-stacked When MICAs are ground-stacked above the 600-HP, the GuideALinks in MICA allow the same combinations as when a MICA is linked with another MICA but it will create uptilt instead of downtilt. The use of the +7 position on the front GuideALink is not recommended. Table 8. MICA Link Positions to 600-HP (ground-stacked) Rear Front Angle for MICA 0 0 0° 0.5 0 0.5° Uptilt 1 0 1° Uptilt 1.5 0 1.5° Uptilt 2 0 2° Uptilt 2.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES 7. USING THE MG-MICA WITH 600-HP SUBWOOFERS 600-HP subwoofers equipped with the optional MRF-600 rigging frame can be linked directly to the MG-MICA grid to form flown and ground-stacked arrays. FLOWN CONFIGURATION The 600-HP rigging frame receives the MG-MICA grid links exactly the same way as MICA.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES GROUND-STACKED CONFIGURATION The MG-MICA ground-stacked pockets receive the 600-HP links directly. Many combinations are possible; the most common are listed in the table below. Table 9. 600-HP LInk Positions to MG-MICA Grid (ground-stacked) Rear Front Angle for 600-HP with respect to the MG-MICA -3 0 0.5º Uptilt 0 0 2.5 º Downtilt 0 +3 0.5º Uptilt Meyer Sound Laboratories Inc. www.meyersound.com T: +1 510 486.1166 F: +1 510 486.8356 PN: 05.147.034.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES 8. ACCESSORIES FOR THE MG-MICA GRID, MICA, AND 600-HP MGCP-MICA CENTER POINT RIGGING BEAM CAUTION: When the MGCP-MICA Center Point Rigging Beam is used to pick up the MG-MICA grid use only the ratings on table 10 (page 32). Do not use the ratings for the MG-MICA grid on previous pages which are rated for the grid’s own pick-up points.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES Table 10. MGCP-MICA Load Ratings Factor of Safety Total Suspended Weight MICA Equivalent Cabinets* Maximum Grid Tilt FS5 FS7 1830 lbs (836 kg) 1365 lbs (621 kg) 11 8 -45º to +45º -45º to +45º *The load rating includes the MG-MICA grid. CAUTION: Do not exceed the maximum rated weight for the MGCP-MICA Center Point Rigging Beam when it is used to pick up the MG-MICA grid.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES MTF-MILO/MICA TRANSITION FRAME When using MICA enclosures as downfill on a MILO array, the MTF-MILO/MICA transition frame is used between the lowest MILO and the first MICA in the combined array. List of Contents: MTF-MILO/MICA Transition Frame Kit (40.147.043.01) Qty Part Number Description 1 40.147.043.01 MTF-MILO/MICA Transition Frame The transition frame allows angles from 0 to 5 degrees between the MILO and the MICA underneath it.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES MDTL-MICA DOWNTILT LINK The MDTL-MICA downtilt link adds a fixed amount of downtilt to ground-stacked MICA loudspeakers. The versatile MDTL-MICA links connect to the rear GuideALinks of the bottom MICA and can be used to downtilt MICAs when they are ground-stacked on top of the MG-MICA or the 600-HP subwoofer. CAUTION: The MDTL-MICA downtilt link is only rated for ground-stacking applications, and should not be used in any flown configuration.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES Table 12. MICA Link Positions Using the MDTL-MICA and MG-MICA Rear Front* Angle for MICA 0 0 -18.5º 0.5 0 -18º 1 0 -17.5º 1.5 0 17° 2 0 -16.5º 2.5 0 -16° 3 0 -15.5º 4 0 -14.5º 5 0 -13.5º 6 0 -12.5º *The use of the +7 position in the front link is not recommended when using the MTDL-MICA MDTL-MICA with 600-HP The MDTL-MICA downtilt link adds 10-degree of downtilt to ground-stacked MICA loudspeakers on top of a 600-HP subwoofer.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES Table 13. MICA Link Positions Using the MDTL-MICA and 600-HP Rear Front* Angle for MICA 6 0 -10º 5 0 -11º 4 0 -12º 3 0 -13º 2.5 0 -13.5º 2 0 -14º 1.5 0 -14.5º 1 0 -15º 0.5 0 -15.5º 0 0 -16º *The use of the +7 position in the front link is not recommended when using the MTDL-MICA CAUTION: The MDTL-MICA downtilt link is only rated for ground-stacking applications, and should not be used in flown configurations.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES MCF-MICA CASTER FRAME The heavy-duty MCF-MICA Caster Frame is used to transport and maneuver stacks of up to four MICA enclosures. The loudspeakers’ GuideALinks are fully compatible with the caster frame and connect them securely, allowing convenient transport of straight or splayed stacks. List of Contents: MCF-MICA Caster Frame Kit (40.147.033.01) Qty Part Number Description 1 40.147.033.01 MCF-MICA Caster Frame 4 134.023 3/8" x 1.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES The MCF-MICA’s rugged steel frame facilitates the use of forklifts. Whether deploying or striking an array, the MCFMICA can temporarily support the weight – making it easy to assemble or disassemble the array in stacks of up to four MICAs. The MG-MICA should only be moved sideways when being transported on the MCF-MICA caster frame.
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MG-MICA MULTIPURPOSE GRID AND ACCESSORIES The MCF-MICA also allows 600-HP subwoofers to be supported in a ground-stacked configuration. CAUTION: When using the MCF-MICA caster frame to ground-stack 600-HP subwoofers, make sure all four caster wheels are blocked to prevent the stack from rolling away. CAUTION: Do not exceed three 600-HPs high to avoid tipping over the stack. Meyer Sound Laboratories Inc. www.meyersound.com T: +1 510 486.1166 F: +1 510 486.8356 PN: 05.147.034.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES 9. ASSEMBLING AN ARRAY OF MICA LOUDSPEAKERS TO THE MG-MICA GRID 1. Lay the MG-MICA grid on the floor in the approximate location where the rigging points have been established and the motors hung. Orient the grid so that the loudspeakers are pointing in the same direction as the arrows indicating Front on the grid label. Attach 3/4” shackles to the desired points on the MG-MICA grid.
MG-MICA MULTIPURPOSE GRID AND ACCESSORIES CAUTION: If the links are not stowed as described in Step 8, you run the risk of denting or penetrating the wood on the top loudspeaker in the stack by hitting it with an extended link. 11. Pin the front links in the 0 position (unless the +7 position is required). Position and pin the rear links of the suspended MICA loudspeaker to the desired angle. “Bump” the motors to lower the rear GuideALinks into the link pockets of the MICA to be attached, and pin. 12.
Meyer Sound Laboratories Inc. 2832 San Pablo Avenue Berkeley, CA 94702 www.meyersound.com T: +1 510 486.1166 F: +1 510 486.8356 © 2005 Meyer Sound Laboratories Inc. 05.147.034.
