Benutzeranleitung / Produktwartung M3D-SUB des Produzenten Meyer Sound
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QUICKFL Y RIGGING MANUAL M SERIES M3D™ and M3D-Sub.
iv v DECLARA TION OF CONFORMITY ACCORDING TO ISO/IEC GUIDE 22 AND EN 45014 The manufacturer: Meyer Sound Laboratories Inc. 2832 San Pablo Avenue Berkeley , California 94702-2204, USA Declares that the.
iv v SYMBOLS USED These symbols indicate important safety or operating features in this booklet and on the chassis. 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this loudspeaker near water .
vi vi i PLEASE READ THI S SECTI ON CAREF ULL Y AND I N ITS ENT IRETY . IT CONT AINS CR ITICAL I NFORMA TION REGARDI NG SAFET Y ISSUE S, INCLU DING GU IDELINES FOR GEN ERAL SAF E USE O F RIGGIN G SYSTE MS AS WELL AS AD VISORIES ON GOVERN MENT R EGULA TIONS AND LIA BILITY L A WS.
vi vi i Advisory Note: Safety Responsibilities “Above the Hook” In most touring applications of rigging systems, the touring sound provider is normally r esponsible for ensuring the safety of the suspension system only below the attachment point.
vi ii ix.
vi ii ix CONTENTS Introduction 1 Assembling Blocks for T ransport 1 T ruck Pack 1 M3D T ransport 3 Before Hanging an M3D Array 3 Choosing Rigging Point Capacities 3 M3D Placement Calculator 4 Measurin.
x 1 Appendix B — Physical Specications 32 M3D Physical Specications 32 M3D-Sub Physical Specications 33 MTG-3D T op Grid Physical Specications 33 Appendix C — MTF-3D T ransition Frame .
x 1 INTRODUCTION The M3D and M3D-Sub QuickFly rigging system is a complete integrated solution for transporting and ying M3D and M3D-Sub loudspeakers. This system includes everything below the motors, to the caster rails and covers that carry and protect the system in transport.
2 3 Using a three- or four -high M3D block will make each block heavier (see T able 1) and less stable, so the blocks will requir e extra care when rolling over an uneven surface and up truck ramps. Conversely , larger blocks will make more efcient use of a truck’ s car go space and make a more efcient load-in and strike.
2 3 TIP: Meyer Sound’ s optional transit covers will protect M3Ds stacked for transport. They are easy to use, because one side opens with V elcro seams, allowing two stagehands to easily put on the cover without having to lift it over the top of the block.
4 5 When choosing your rigging point capacities, always keep in mind that the entire weight of the array may shift completely to either the front or back points. Thr ee factors contribute to variations in the center of gravity: 1. The curvature of the array 2.
4 5 MEASURING A VENUE Y ou are requir ed to enter the venue’ s dimensions into the M3D Placement Calculator . If scaled sectional drawings of the venue ar e available, you can use the dimensions from these drawings to determine the M3D array setup.
6 7 Once you enter measurements into the M3D Placement Calculator , it will help you visualize the approximate vertical splay angles needed. The calculator will also help with other rigging considerations.
6 7 LIFTING MECHANISMS The number and lift capacity of chain motors used to lift the array are dependent on the array’ s combined weight, including the weight of any underhung clusters, and its orientation and splay . For a smaller array , it may be sufcient to use 1-ton motors, but for lar ger arrays, 2-ton motors may be necessary .
8 9 NOTE: When using chains or making custom bridle lengths to achieve vertical tilt, be sure the center of gravity of the nal hung array is within the allowable limits of the MTG-3D T op Grid. (See “M3D Placement Calculator .”). TIP: Some venues, such as theaters, have only side-to-side motor points available through the ceiling plaster .
8 9 TIP: If the bottom of the array ends up being too far downstage during assembly , have stagehands breast it upstage until assembly is complete and it is own to its nal trim position. 5. It is often necessary to increase the stability of an array in venues with very high structural steel from which the array is suspended.
10 11 Figure 10. Checking phase (chain direction) 4. Run the chain through the motors until they ar e approximately 2 feet of f the ground. 5. Attach the chain bags and feed the unused chain into the bag. 6. If using 2-ton motors, check for any twists in the overhead chain and correct if necessary (see Figur e 11).
10 11 The allowable system center of gravity range must be within the front rigging point and one of the pickup choices provided, as illustrated in Figur e 34 on page 26.
12 13 ADJUSTING ANGLES By using both MAPP Online and the M3D Placement Calculator , you should now have determined the requir ed tilt for the MTG-3D T op Grid and splay angles between elements for your array .
12 13 Adjusting MTG-3D T op Grid Uptilt With the MTG-3D T op Grid’ s rear link in the extended position (as shown in Figure 17 and Figur e 18), the front CamLink can be adjusted to provide between 1˚ and 5˚ of uptilt. The MTG-3D T op Grid’ s rear link works in combination with its front CamLink to pr oduce the desired angle of uptilt.
14 15 Figure 19. Removing the QRP from the MTG-3D T op Grid’ s front CamLink 2. Adjust the motors to tilt the MTG-3D T op Grid and allow the CamLink to move until the QRP can be inserted into the requir ed hole. 3. Insert the QRP into the desired CamLink hole as shown in Figure 20.
14 15 Figure 21. Adjusting angle using the alignment block CAUTION: When the QRPs are r emoved from the CamLinks, take car e when adjusting the motor hoists. If the motors are raised too high with only the rear link’ s QRPs installed, the lower loudspeaker block can swing under the upper block of own loudspeakers.
16 17 3. Move the CamLink to the 0˚ position and secure with a QRP as shown in Figure 24. Figure 24. Front CamLink in up position, QRP inserted Y ou are now ready to assemble another block of loudspeakers to the array . ADDING A BLOCK OF M3DS TO AN ARRA Y 1.
16 17 Figure 27. Rear link QRP inserted TIP: Here is another technique for setting the rear link. Position the upper array approximately 1 inch (25 mm) above the waiting cabinet block. Push the own array behind the lower block approximately 2 inches (50 mm).
18 19 FL YING A COMPLETED ARRA Y Figure 31 shows an example of rigging points chalked on the ground, a fully rigged block of three M3D loudspeakers with an MTG-3D T op Grid mounted, positioned, and ready to y . Use the following procedur e to y rigged blocks and arrays into their nal position.
18 19 INCLUDING M3D-SUBS IN AN ARRA Y M3D-Subs can be included in an array in the same manner as M3Ds. Refer to the M3D Operating Instructions for details on the use of M3D-Subs in an array and sugges.
20 21 GENERAL This appendix contains various hanging congurations for M3D loudspeakers using an MTG-3D T op Grid. This appendix also contains allowable congurations of bridle attachments, bridle lengths, attachment points on the MTG-3D T op Grid, the maximum weight, and maximum number of M3D loudspeakers for each conguration.
20 21 CONFIGURA TION A Figure 34 illustrates the hanging congurations that are consider ed in the calculations listed in T able 3 and T able 4. In these congurations, the distance between the attachment points on the MTG-3D T op Grid is 52.50 inches (1334 mm).
22 23 T able 4. Minimum Allowable Bridle Leg Lengths with V arying Number of M3D Loudspeakers Maximum Number of M3Ds 5:1 Safety Factor 7:1 Safety Factor Maximum Angle Between Bridle and Grid α (deg) Minimum Allowable Bridle Leg Lengths Maximum Angle Between Bridle and Grid α (deg) Minimum Allowable Bridle Leg Lengths 1 43˚ 3.
22 23 CONFIGURA TION B Figure 35. Using bridle leg short side pickup points (BRP 1) Use T able 5 and T able 6 when the lifting conguration uses bridle legs spanning the short sides of the M3D as shown in Figure 35.
24 25 T able 6. Minimum Allowable Bridle Leg Lengths with V arying Number of M3D Loudspeakers Qty . of M3Ds 5:1 Safety Factor 7:1 Safety Factor Angle Between Bridle and Grid α (deg) Minimum Allowable Bridle Leg Lengths Angle Between Bridle and Grid α (deg) Minimum Allowable Bridle Leg Lengths 1 51˚ 2.
24 25 CONFIGURA TION C Figure 36. Using bridle leg short side pickup points (BRP 2) Use T able 7 and T able 8 when the bridle legs are parallel to the side of the M3D and when the rear pickup points ar e on the closed MTG-3D T op Grid extension as shown in Figure 36.
26 27 T able 8. Minimum Allowable Bridle Leg Lengths with V arying Number of M3D Loudspeakers Qty . of M3Ds 5:1 Safety Factor 7:1 Safety Factor Angle Between Bridle and Grid ∝ (deg) Minimum Allowable Bridle Leg Lengths Angle Between Bridle and Grid ∝ (deg) Minimum Allowable Bridle Leg Lengths 2 43˚ 2.
26 27 CONFIGURA TION D Figure 37. Bridle legs using attachment points on an extended MTG-3D T op Grid (BRP 3) When using bridle legs spanning the short side of the M3D (front to back) with the pickup .
28 29 T able 10. Minimum Allowable Bridle Leg Lengths with V arying Number of M3D Loudspeakers Qty . of M3Ds 5:1 Safety Factor 7:1 Safety Factor Angle Between Bridle and Grid ∝ (deg) Minimum Allowable Bridle Leg Lengths Angle Between Bridle and Grid ∝ (deg) Minimum Allowable Bridle Leg Lengths 1 43˚ 3.
28 29 CONFIGURA TION E Figure 38. Using center pickup points The pickup conguration using the center pickup points on the MTG-3D is shown in Figure 38. CAUTION: The MTG-3D T op Grid must not rotate (tilt) mor e than 12 degrees from horizontal. ! T able 11.
30 31 CONFIGURA TION F When an array is lifted with a separate motor attached to each of the MTG-3D corner lifting points, as shown in Figure 39, an array of up to 16 M3Ds can be supported (see T able 12). Each motor hook may be attached to the corner of the MTG-3D T op Grid with two 5/8-inch or 3/4-inch shackles.
30 31 CONFIGURA TION G In conguration G, the steel cables are connected to a single lift point from the four rigging points on the MTG-3D T op Grid. The array is lifted from a single point attached to each of the MTG-3D T op Grid cor ner lifting points as shown in Figur e 40.
32 33 APPENDIX B — PHYSICAL SPECIFICA TIONS M3D PHYSICAL SPECIFICA TIONS Enclosure Multi-ply hardwood Finish Black textured (weather pr otected) Note: Custom color available upon request Protective .
32 33 M3D-SUB PHYSICAL SPECIFICA TIONS Enclosure Multi-ply hardwood Finish Black textured (weather pr otected) Note: Custom color available upon request Protective grill Powder -coated hex stamped ste.
34 35 Figure 43. MTG-3D T op Grid physical dimensions.
34 35 APPENDIX C — MTF-3D TRANSITION FRAME ASSEMBL Y PROCEDURE Use the following procedur e when transitioning in an array from M3Ds to Meyer Sound MSL-4s or CQs (see Figur e 44). Figure 44. T ransition frame with downll loudspeakers MTF-3D TRANSITION FRAME Each MTF-3D T ransition Frame comprises the items shown in T able 14.
36 37 A TT ACHING THE ADJUST ABLE LINK ASSEMBL Y TO THE MRF-3D RIGGING FRAMES TIP: When you are lowering the fr ont arm on to the rings, it is easiest to do so from one side — gradually lowering it to the other side as the rings each t into the corresponding holes in the arm.
36 37 Front 1. Raise the M3D array to give sufcient space to slide the front (long) adjustable link plate up (vertically) in between the MRF-3D Rigging Frame and the CamLink, and use the same hole that is used to adjust the CamLink (see Figure 46).
38 39 GLOSSAR Y A array A group of own loudspeakers that has been congur ed to produce optimum sound pr essure level (SPL) and coverage in a particular venue. B block A group of loudspeakers from an array that has been br oken down into convenient-sized groups for transport.
38 39 O out Rigging term denoting hardwar e moving in an upward dir ection. P pullback or Rigging term used to describe the process of attaching r ope, a sling, or a pullback motor to the pullback motor bottom rear of an array to achieve further downtilt than is available using the array’ s center of gravity alone.
© 2003 Meyer Sound Laboratories Inc. All Rights Reserved 05.105.400.01 Rev . B Meyer Sound Laboratories Inc. 2832 San Pablo A venue Berkeley , CA 94702 USA T : +1 510 486.
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