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Alcons evolutionary audio solutions LR18 User Manual

Compact mid-size line-array
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Summary of Contents for Alcons evolutionary audio solutions LR18

  • Page 2: Table Of Contents

    Table of contents _______________________________________________ Introduction ______________________________________________________________________________________ 3 Important safety instructions and precautions _________________________________________________________ 4 Installation_______________________________________________________________________________________ 5 Rigging components ______________________________________________________________________________ 6 Array configurations _____________________________________________________________________________ 10 Service and support ______________________________________________________________________________ 22 CE declaration of conformity _______________________________________________________________________ 24 Rigging manual LR18 Rev. 1.5...

  • Page 3: Introduction

    1. Introduction __________________________________________________ Dear customer, Congratulations on your purchase of an Alcons Audio LR18 line array loudspeaker and thank you for your confidence in Alcons products. We are very honoured to welcome you to the growing family of Alcons ambassadors! For your safety, please read the Important safety instructions and the precautions section before rigging a loudspeaker array.

  • Page 4: Important Safety Instructions And Precautions

    Do not stack the loudspeaker array on unstable ground or surface. If the array is stacked on a structure, platform, or stage, always check that the latter can support the total weight of the array. As a general rule, Alcons Audio recommends the use of safety straps at all times.

  • Page 5: Installation

    Unpacking Carefully open the shipping carton and inspect all the parts. Every Alcons product is thoroughly tested and inspected before leaving the factory and should arrive in perfect condition. If you find any damage, notify the shipping company immediately. Only you, the consignee, may initiate a claim for shipping damage. Be sure to save all packing materials for the carrier’s inspection.

  • Page 6: Rigging Components

    4. Rigging components __________________________________________ LR18 loudspeaker 1) LR18/ LB18 cabinet LR18 cabinet (shown) 2) Front coupler front couplers, lockable with quick release pin 3) Bar handles Handles in the cabinet ensure easy handling 4) Pin angle setting Pin determines the angle between the cabinets 5) Angle arm + lever Lever to turn the angle arm 6) Signal input/ link...
  • Page 7 4. Rigging components __________________________________________ LR18B loudspeaker 1) LR18B cabinet LR18B cabinet shown, without front 2) Coupler Rotatable couplers, lockable with quick release pin 3) Bar handles Handles in the cabinet ensure easy handling 4) Bottom connector Connection with two holes, enabling a 2,5° splay angle Rigging manual LR18 Rev.
  • Page 8 4. Rigging components __________________________________________ GRD18 The GRD18 enables the LR18 line-array modules and the LB18 line-array extension modules to be flown and ground stacked. The grid can be suspended from multiple hoist positions on top of the grid or by means of a central “single pick- point”...
  • Page 9 4. Rigging components __________________________________________ GRD18EXTBR This is a “sliding” extension bar, which can be attached on top of the GRD18, to extend the leverage capabilities of the GRD18, with larger centre-of-gravity (COG) array off-sets. With the GRD18EXTBR mounted at the front side of the GRD18, the upward array tilt is extended;...

  • Page 10: Array Configurations

    Array assembling can be done in two ways: Caterpillar style or Pre-rig style hoisting. This is determined by the available space, time or available parts. There are 10 user selectable logarithmic angles, which can be determined by the Alcons Ribbon Calculator™ simulation program. The angles are suitable for both caterpillar and pre-rig style array flying.
  • Page 11 5. Array configurations ___________________________________________ Cabinet connections LR18B LR18B has rotatable couplers, secured/ parked with a quick release pin. This pin is also used to make the connection to the GRD18B or the adjacent cabinet. It is also possible to use the LR18B as a single standing subwoofer. It then stands on its long or short side with slider feet.
  • Page 12 5. Array configurations ___________________________________________ GRD18 options The GRD18 has multiple mounting options. The picture on the right shows the different pick-points for flying an array. The A1 & A2 marked points are the default hoist points. It is possible to use one pick point from the A1 linear pattern. Use it only for max.
  • Page 13 5. Array configurations ___________________________________________ GRD18B options The GRD18B has multiple mounting options. The picture on the left shows the different pick-points for flying an array. The A1 & A2 marked points are the default hoist points. It is also possible to use one pick point from the A1 linear pattern.
  • Page 14 The schematic picture below shows the possible array hang options a-d and stack arrangement e with LR18/ LB18. The options also apply to GRD18B+LR18 As stated earlier, the array angles can be determined through the Alcons Ribbon Calculator™ simulation program.
  • Page 15 5. Array configurations ___________________________________________ GRD18B options The schematic picture below shows the possible array hang options f-h and stack arrangement i & j with LR18B and LR18/ LB18. Attaching LR18 to LR18B (flying or stacking) requires a second GRD18B (h). This is due to the fact that the LR18 has 3 pick points and LR18B a 4 pick points set-up.
  • Page 16 5. Array configurations ___________________________________________ LR18 transport and array building options There are two transport/ array building options available for LR18/ LB18. Caterpillar style: All LR18’s are connected horizontally/ face-down on 3-pack dollies. Angle-setting can only be done in the area of the array that is in full compress state, from where LR18’s are pulled up.
  • Page 17 5. Array configurations ___________________________________________ LR18 transport and array building options Pre-rig style: All LR18(B) cabinets are connected vertically/ face-forward. This saves building space and enables pre-flight angle-setting. Tilting the already flown array on top of the pre-rigged array requires two motors, as the array needs to be dropped with the rear-side as low as possible, to be able to connect the rear latches.
  • Page 18 (C). Take the first dolly away for storage. Pull the angle setting pins (4) out and make the correct angles using the angle arm (5). These angles are determined by the Alcons Ribbon Calculator™ simulation program. Continue doing this until all angles are set. Raise the entire array from the last wheel dolly (D).
  • Page 19 5. Array configurations __________________________________________ Pre-rig style array assembling and hoisting With this method of array building the angle setting can be done at the warehouse or on-site. Also build space is kept to a minimum. It is preferable to use two motor hoists, when building large arrays. The numbers in the description below, correspond with the LR18 rigging components overview pictured earlier.
  • Page 20 Take of the top-head from the FC3LR18. Attach the GRD18(B) to the top cabinet and secure the hoist(s) to the correct pick-point of the array (E). Ensure that the correct angles are set. As mentioned earlier, this is determined by the Alcons Ribbon Calculator™ simulation program.
  • Page 21 Make sure that the array is assembled on a flat and stable surface Begin by positioning GRD18/ GRD18B in ground stack mode. Ensure that the centre of gravity will be well within the GRD18 base. This can be determined by the Alcons Ribbon Calculator™ simulation program.

  • Page 22: Service And Support

    Summary Alcons Audio BV warrants the original purchaser and any subsequent owner of each new Alcons product, for a period of six years limited from the date of the original purchase by the original purchaser that the new Alcons product is free of defects in materials and workmanship. Alcons Audio BV warrants the new Alcons product regardless of the reason for failure, except as excluded in this warranty.
  • Page 23 6. Service and support ___________________________________________ Contact information Mailing address: Alcons Audio BV De Corantijn 69 1689 AN ZWAAG The Netherlands Telephone: +31 (0)229 283090 World Wide Web: http://www.alconsaudio.com E-mail: info@alconsaudio.com Rigging manual LR18 Rev. 1.5...

  • Page 24: Ce Declaration Of Conformity

    7. EC declaration of conformity ____________________________________ Alcons Audio BV De Corantijn 69 1689 AN ZWAAG The Netherlands States that the following products: LR18/ LB18/ LR18B Rigging System are in conformity with the provisions of the following EC directives and applicable...
  • Page 25 Notes _________________________________________________________ Rigging manual LR18 Rev. 1.5...

This manual is also suitable for:

Evolutionary audio solutions lb18Evolutionary audio solutions lr18b