Alcons Lr18i User manual

Rigging manual LR18i Rev. 1.1

Table of contents _______________________________________________

1 Introduction______________________________________________________________________________________ 3

2 Important safety instructions and precautions _________________________________________________________ 4

3 Installation ______________________________________________________________________________________ 5

4 Rigging components ______________________________________________________________________________ 6

5 Array configurations ______________________________________________________________________________ 9

6 Service and support ______________________________________________________________________________ 16

7 CE declaration of conformity_______________________________________________________________________ 17

Rigging manual LR18i Rev. 1.1

1. Introduction__________________________________________________

Dear customer,

Congratulations on your purchase of an Alcons Audio LR18i 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.

General features

The LR18i has the following features:

A unique seamless arrayability up to/beyond 20kHz.

Symmetrical 90° or 120° dispersion in the non-coupling plane.

High-performance line-array system for even demanding applications.

Non-compressed 1:1 HiFi-quality sound reproduction.

Intuitive predictable linear response behavior and identical tonal balance at any SPL.

7” pro-ribbon HF section with exceptional intelligibility and “throw”.

Maximum dynamic headroom reserve with up to 90% less distortion.

Fully coherent and symmetric pattern control in horizontal and vertical plane.

SIS™ pre-wired for very high system damping and further reduced distortion.

All Neodymium drivers for excellent performance-to-weight ratio.

LR18i rigging features

The trapezoidal cabinet is fitted with integrated mounting hardware, enabling angle-setting on the cabinets during installation. The rigging system is intended for

fixed installation use and has a max. working load limit of 24x LR18i cabinets under 10:1 safety (with GRD18(B).

Manual

This manual is written in a compact and easy readable way. You can contact Alcons Audio for more in-depth information on different items or situations

Rigging manual LR18i Rev. 1.1

2. Important safety instructions and precautions _____________________

Read this manual

1. Follow all safety instructions as well as the warning messages.

2. Never incorporate equipment or accessories not approved by Alcons Audio.

3. Read all the related product information before using the system.

4. Work with qualified personnel for rigging the system.

5. Installation should only be carried out by qualified personnel who are familiar with the rigging techniques and safety recommendations stated in this

manual.

6. Ensure health and safety during installation and setup.

7. All persons must wear protective headgear and footwear at all times. Under no circumstances personnel is allowed to climb into a loudspeaker assembly.

8. Respect the Working Load Limit (WLL) of third party equipment.

9. Alcons Audio is not responsible for any rigging equipment and accessories provided by third party manufacturers. Verify that the Working Load Limit

(WLL) of the suspension points, chain hoists and all additional hardware rigging accessories is respected.

10. Respect the maximum configurations and the recommended safety level.

11. For safety issue, respect the maximum configurations outlined in this manual. To check the conformity of any configuration in regards with the safety level

recommended by Alcons Audio.

12. Be cautious when flying a loudspeaker array. Always verify that no one is standing underneath the loudspeaker array when it is being raised or lowered.

As the array is being raised, check each individual element to make sure that it is securely fastened to the adjacent element.

13. Never leave the array unattended during the installation process. As a general rule Alcons Audio recommends the use of safety slings at all times.

14. Ensure that the surface is suitable for ground-stacking a loudspeaker array.

15. 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.

The exclamation point within a triangle is intended to alert the user to the presence of important operating

instructions in the literature accompanying the product.

Rigging manual LR18i Rev. 1.1

3. 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.

Rigging manual LR18i Rev. 1.1

4. Rigging components __________________________________________

LR18 loudspeaker

1) LR18i cabinet LR18i cabinet

2) Front coupler front couplers with nut and bolt connection

3) Signal input/ link Input/ link for the audio signal

4) Angle frame frame supports features for the angle setting and coupling

5) Angle bar bar with holes for angle setting and coupling

Rigging manual LR18i Rev. 1.1

4. Rigging components __________________________________________

GRD18i

The GRD18i enables the LR18i line-array 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” for smaller arrays; all points

11mm/0.44-in for 0,75T shackles.

The GRD18i is certified for a safety-rating of 10:1, for twelve (12) cabinets LR18i

GRD18

The GRD18 enables the LR18i line-array 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” for smaller arrays; all points 14mm/0.55-in for

1,5T shackles. It has a mounting position and through hole for the Teqsas laser/

inclinometer.

The GRD18 is certified for a safety-rating of 10:1, for twenty-four (24) cabinets

LR18i.

Rigging manual LR18i Rev. 1.1

4. Rigging components __________________________________________

GRD18B

The GRD18B enables the LR18i line-array modules and LR18B

line-array bass modules to be flown and ground stacked. The grid can

be suspended from multiple hoist options on top of the grid or with the

central “single pick-point” bar for smaller arrays (all points 14mm/0.55-

in for 1,5T shackles).The GRD18B has a weight of 26 kg / 57 lb and is

certified for a safety-rating of 10:1, for 24 cabinets LR18i, 12 cabinets

LR18B * on the hoist positions on top of the grid.

* (or equivalent weight in mixed configurations)

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; With the GRD18EXTBR mounted at the rear side of the GRD18, the downward

array tilt is extended. The front and rear holes measure 14mm/0.55-in to facilitate 1,5T

shackles. Always use both quick release pins for the GRD18/ GRD18EXTBR connection.

Rigging manual LR18i Rev. 1.1

5. Array configurations___________________________________________

Cabinet connections LR18i

There are 10 user selectable logarithmic angles, which can be determined by the

Alcons Ribbon Calculator™ simulation program. The angle lay-out is pictured on

the right. To set a desired angle, two holes in the angle bar need to be positioned

between the marked holes A,B on one cabinet and C,D and E on the adjacent

cabinet.

The picture below shows the front coupling with locating bolts.

It is important to mention that the angle setting on the desired cabinet is done at

the previous cabinet.

Rigging manual LR18i Rev. 1.1

5. Array configurations___________________________________________

GRD18i options

The GRD18i is used with 1-12 LR18i arrays and 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

one pick point only for max. 6x LR18i cabinets

When hanging a 6-12 LR18i array with 2 hoist points, ensure that

the Centre of Gravity is evenly spaced between the two A1 pick

points.

In case of a permanent installation, combine an A1 point and 2x

A2 for a stable 3-point hang. Use 0,75T shackles at all times

Hole A4 can be used for a cable sling attachment, or an extra

safety steel to the bottom cabinet of the array.

The 2 holes A5 will hold the connection bolt between the LR18i

angle arm and GRD18i.

Picture of the GRD18i sticker situated at the A5 marked area.

The -2.7° hole is only used when stacking an LR18i array.

Rigging manual LR18i Rev. 1.1

5. Array configurations___________________________________________

GRD18 options

The GRD18 is used with 12-24 LR18i arrays and 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. 12x LR18i cabinets

When hanging a 6-12 LR18i array with 2 hoist points, ensure that

the Centre of Gravity is evenly spaced between the two A1 pick

points.

In case of a permanent installation, combine points A1 and 2x A2 for

a stable 3-point hang. Use 1,5T shackles at all times

A3 indicates the mounting position of an angle inclinometer. It has a

4x ø4mm; 16.5mm x 108.8mm hole pattern for the Teqsas laser/

inclinometer.

Hole A4 can be used for a cable sling attachment.

The 2 holes A5 will hold the connection pin between the LR18i angle

arm and GRD18

The picture below shows the orientation of the LR18i angle bar

inside the GRD18 and GRD18B. The angles are also indicated on

the GRD sticker.

Rigging manual LR18i Rev. 1.1

5. Array configurations___________________________________________

GRD18B options

The GRD18B 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 also possible to use one pick point from the A1 linear

pattern. Use it only for max. 12x LR18i or 6 LR18B

cabinets

When hanging a 12-24 LR18i or 8-12 LR18B array with 2

hoist points, use the outermost front and rear A1 pick

points.

Preferably, combine points A1 and A2 for a stable 3 or 4-

point hang. Use 1,5T shackles at all times

A3 indicates the mounting position of an angle

inclinometer. It has a 4x ø4mm; 16.5mm x 108.8mm hole

pattern for the Teqsas laser/ inclinometer.

The 2 holes A5 will hold the connection pin between the

LR18i angle arm and GRD18B

A8 marks the angle arm which can connect to the bottom

connection points on the LR18B. Turn the arms

horizontally into their recesses and lock with the G1 pins,

when using GRD18B as a top grid.

G2 connects to the front coupling of a LR18i, using the bottom hole.

Rigging manual LR18i Rev. 1.1

5. Array configurations___________________________________________

LR18i array assembling

Required tools: Allan key wrench 5mm, thin 13mm wrench, long 13mm

combination wrench and torque wrench 5-20Nm.

Start by mounting GRD18i(1) onto the top LR18i cabinet. Use the

supplied locating bolts and black locking nuts for the front couplers(2).

Align the A/B hole with the “A” hole in the angle frame(5) with the collar

bolt(6) and the 0,5°/hole GRD18i to the 0° hole of the GRD18i. Pin the

long M8 bolt and slide the black bushing onto the bolt end. Lock the

connection with the black locking nut.

Hoist the GRD18i and cabinet and tighten the bolt connections firmly.

Make the first inter-cabinet connection. Align the front coupler holes and

pin with the locating bolt and locking nuts. Due to the tight space, a thin

wrench is preferred. A “long nose plier” can also be used, to align and

screw the nut onto the locating bolt ->15Nm.

Make the correct angle connection. These are stated on the angle

frame. Apply thread locking fluid on the collar bolts(6) for the angle

connection. Raise the array and tighten up the bolt connections->15Nm.

Repeat these steps for the remaining cabinets.

When the assembled array has been raised, check all bolt connections.

Rigging manual LR18i Rev. 1.1

5. Array configurations___________________________________________

LR18i ground stacking

The maximum allowed number of cabinets in ground stacked mode with GRD18i is six.

Make sure that the array is assembled on a flat and stable surface

Required tools: Allan key wrench 5mm, thin 13mm wrench, long 13mm combination wrench and torque wrench 5-20Nm.

Place the GRD18i(1) on a flat and stable surface. Begin with the first cabinet. Use the supplied locating bolts and black locking nuts for the front couplers(2).

Align the A/B hole with the “A” hole in the angle frame(5) with the collar bolt(6) and the 0,5°/hole GRD18i to the 0° or -2,7° on GRD18i. Pin the long M8 bolt and

slide the black bushing onto the bolt end. Lock the connection with the black locking nut.

Make the first inter-cabinet connection. Align the front coupler holes and pin with the locating bolt and locking nuts. Due to the tight space, a thin wrench is

preferred. A “long nose plier” can also be used, to align and screw the nut onto the locating bolt->15Nm.

Make the correct angle connection. These are stated on the angle frame. use the collar bolts(6) for the angle connection. Tighten up the bolt connections-

>15Nm . Repeat these steps for the remaining cabinets.

When the assembled array has been raised, check all bolt connections.

Rigging manual LR18i Rev. 1.1

6. Service and support ___________________________________________

Warranty

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. In order to obtain warranty, you must keep the original sales receipt to

establish the exact date of purchase.

Items excluded from warranty

Warranty does not cover any product which has been damaged because of any misuse, accident, or negligence. Warranty also does not extend to a new Alcons

product if the serial number has been defaced, altered or removed.

What we will do

Alcons Audio BV will replace defective parts and repair malfunctioning products, regardless of the reason for failure (except as excluded). Warranty work can

only be performed at our authorized service centres, or at our factory.

Disclaimer

Alcons Audio BV is not liable for any damage to loudspeakers, amplifiers, or any other equipment that is caused by negligence, misuse or improper installation.

Alcons Audio BV is not liable for any incidental damages resulting from any defect in the new Alcons product. This includes any damage to another product or

products resulting from such a defect.