Alcons L series User manual

Rigging manual LR15 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 _____________________________________________________________________________ 11

6 Service and support______________________________________________________________________________ 24

7 CE declaration of conformity_______________________________________________________________________26

Rigging manual LR15 Rev. 1.1

1. Introduction__________________________________________________

Dear customer,

Congratulations on your purchase of an Alcons Audio LR15 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 LR15 has the following features:

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

A unique seamless arrayability up to/beyond 20kHz.

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

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

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.

LR15 rigging features

The trapezoidal cabinet is fitted with integrated mounting hardware, enabling angle-setting on the cabinets, without lifting the array, resulting in safer and faster

set-up with minimal handling. The rigging system supports different kinds of array assembling and has a working load limit of 18x LR15 or 9x LR18B cabinets

under 10:1 safety.

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 LR15 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.

16. When a loudspeaker assembly is deployed in an open air environment, wind can produce dynamic stress to the rigging components and suspension

points. If the wind force exceeds 6 Beaufort scale, lower down and/or secure the loudspeaker array.

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 LR15 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 LR15 Rev. 1.1

4. Rigging components __________________________________________

LR15 loudspeaker

1) LR15 cabinet LR15 cabinet (shown)

2) Front coupler front couplers, lockable with quick release pin

3) Recessed grip recessed area in the cabinet for handling

4) Pin angle setting pin determines the angle between the cabinets

5) Signal input/ link input/ link for the audio signal

6) Angle frame this frame holds features for the angle setting and coupling

Rigging manual LR15 Rev. 1.1

4. Rigging components __________________________________________

LR15B loudspeaker

1) LR15B cabinet LR15B cabinet shown

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 LR15 Rev. 1.1

4. Rigging components __________________________________________

GRD15

The GRD15 enables the LR15 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 GRD15 is certified for a safety-rating of 10:1, for eighteen (18) cabinets LR15.

GRD15B

The GRD15B enables the LR15 line-array modules, and LR15B 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 GRD15B is certified for a safety-rating of

10:1, for 18 cabinets LR15 and 9 cabinets LR15B * on the hoist

positions on top of the grid.

* (or equivalent weight in mixed configurations)

Rigging manual LR15 Rev. 1.1

4. Rigging components __________________________________________

GRD18EXTBR

This is a “sliding” extension bar, which can be attached on top of the GRD15 or GRD15B, to extend the

leverage capabilities of the GRD15(B), with larger centre-of-gravity (COG) array off-sets.

With the GRD18EXTBR mounted at the front side of the GRD15(B), the upward array tilt is extended;

With the GRD18EXTBR mounted at the rear side of the GRD15(B), 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 GRD15(B)/ GRD18EXTBR connection.

BRK3LR15

The BRK3LR15 is a base plate for a mini-array of up to three LR15 line-array

modules on a stand. The base-plate is connected to the lowest cabinet with quick

release pins. The base plate angle can be pre-set in three angles: -15°,0, 15° on a

STMT stand mount.

On top of the base LR15, two other LR15 modules can be placed on top,

maintaining full array functionality.

The BRK3LR15 is certified for a safety-rating of 10:1, for three (3) cabinets LR15.

CNVB1518

The CNVB1518 conversion bracket is a transition frame to suspend a small LR15 array under an

LR18 array for down-fill applications. It enables a maximum tilt angle of 8° between LR15 and

LR18. The CNVB1518 is certified for a safety-rating of 10:1, for six (6) cabinets LR15.

Rigging manual LR15 Rev. 1.1

4. Rigging components __________________________________________

CPLNGGRD15

The CPLNGGRD15 has a weight of 14 kg / 31 lb and is certified

for a safety-rating of 10:1, for a front array of 9 (nine) cabinets

LR15 and rear array for a rear array of 4 (four) cabinets LR15B

on the hoist positions. (all points 14mm/0.55-in for 1,5T

shackles).

PNCLMP

The PNCLMP can be used to suspend a LR15 array from a single point. The PNCLMP is attached with the Quick

Release pin to a GRD15(B) pickpoint. The load can be attached to an overhead Truss or bar with a tube diameter of

51mm (2”). It can be horizontally adjusted and fixed. The max. allowed WLL is 250kg.

Rigging manual LR15 Rev. 1.1

5. Array configurations___________________________________________

Cabinet connections LR15

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 12 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.

The angle lay-out is pictured below left. The “P” indicates the position of the angle pin, when parking the angle arm. This bar can be rotated when the pin is

removed from the “P” hole.

The picture on the right shows the angle frame (6). The angle arm has rotated out of its parking position, exposing also the finger control eye (A). It has a slot for

default array building. The underlying hole (B) can be used in ground stack mode or when a array has to be made rigid. When this mode is used, the cabinets

cannot compress.

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

Rigging manual LR15 Rev. 1.1

5. Array configurations___________________________________________

Cabinet connections LR15B

LR15B has rotatable couplers, secured/ parked with a quick release pin. This pin is also used to make the

connection to the GRD15B or the adjacent cabinet.

It is also possible to use the LR15B as a single standing subwoofer. It then stands on its long or short side with

slider feet.

At the lower end of each bracket, there are two holes, which determines the splay angle 0° or 2.5°. This selection is

made before hoisting. Only the front facing side needs to be selected. The back side is always set at 0°.

LR15B can be flown in a cardioid setup,

using this method. There is a second NL4

Speakon connector mounted in the front

grill.

It is advised to use a separate cable hang

for the speaker cables, as the NL4 (front

+ rear) Speakon connectors cannot take

the entire cable weight.

A second GRD15B (to enable the

connection to a LR15 array), under a LR15B

is connected with its top rotatable couplers

to the 0° holes on the LR15B cabinet. This

is also the setup for ground stacking

LR15B+LR15.

Rigging manual LR15 Rev. 1.1

5. Array configurations___________________________________________

GRD15 options

The GRD15 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. 9x LR15

When hanging a 10-18 LR15 hoist points, use the outermost

front and rear 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.

Holes A4 can be used for a cable sling attachment.

The 2 holes A5 will hold the connection pin between the LR15

angle arm and GRD15

The picture on the left shows the GRD18EXTBR detached from GRD15(B). It has to be mounted with 2x

A7 pins to the GRD15/ GRD15B A1 hole pattern, at all times. Create max. spacing between these 2 pins

to spread the load on the GRD18/ GRD18B. A 1,5T “Green Pin” shackle should be used in both end

holes A6.

Rigging manual LR15 Rev. 1.1

5. Array configurations___________________________________________

GRD15B options

The GRD15B 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. Use it only for max. 9x LR15 or 4 LR15B

cabinets

When hanging a 10-18 LR15 or 5-11 LR15B array with 2

hoist points, use the outermost front and rear A1 pick

points.

In case of a permanent installation, 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

LR15 angle arm and GRD15B

A8 marks the angle arm which can connect to the bottom

connection points on the LR15B and is pinned by G1.

Turn the arms horizontally into their recesses and lock

with the G1 pins, when using GRD15B as a top grid. G2

3/8” pin connects to the front couplers of a LR15B. G3

3/16” pin connects to the front couplers of a LR15

Rigging manual LR15 Rev. 1.1

5. Array configurations___________________________________________

GRD15 array options

The schematic picture below shows the possible array hang options a-d and stack arrangement e with LR15. The options also apply to GRD15B+LR15

As stated earlier, the array angles can be determined through the Alcons Ribbon Calculator™ simulation program.

When ground stacking (e), ensure that the centre of gravity

is well within the grid’s base area.

The picture on the right shows the dimensions in mm of the

GRD15 and GRD15B at the different extendable positions

of the GRD18EXTBR extender bar.

Rigging manual LR15 Rev. 1.1

5. Array configurations___________________________________________

GRD15B array options

The schematic picture below shows the possible array hang options f-h and stack arrangement i & j with LR15B and LR15.

Attaching LR15 to LR15B (flying or stacking) requires a second GRD15B (h). This is due to the fact that the LR15 has 3 pick points and LR15B a 4 pick points

set-up. LR15B can therefore be mounted 180° to the adjacent LR15B cabinet, creating a cardioid setup (f-g). Always attach each pick-point on GRD15B with 2

pins to the top couplers of the LR15B.

Placing the pin to the front bottom hole of the LR15B allows a 2,5° splay angle between the LR15B cabinets (g). This creates a curve in the LR15B array, which

gives a better alignment to an adjacent, curved LR15 array.

Rigging manual LR15 Rev. 1.1

5. Array configurations___________________________________________

LR15 transport and array building options

There are two transport/ array building options available for LR15

Caterpillar style:

All LR15’s are connected horizontally/ face-down on

3 or 6-pack dollies. Angle-setting can only be done

in the area of the array that is in full compress state,

from where LR15’s are pulled up. FC3LR15CAT or

FC6LR15CAT are used for this style.

It is not possible to use LR15B with this building

option.

Rigging manual LR15 Rev. 1.1

5. Array configurations___________________________________________

LR15 transport and array building options

Pre-rig style:

All LR15(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. FC3LR15PRRG is used with this style (left). There is also a FC6LR15PRRG available for one 6 cabinet arrays. LR15B is transported on the

PRRGLR15B; with a max. of 3 cabinets (right).

Rigging manual LR15 Rev. 1.1

5. Array configurations___________________________________________

Caterpillar style array assembling and hoisting

The numbers in the text below, correspond with the LR15 rigging components overview pictured earlier.

Shown above depicts array building, caterpillar style. Shown with 1 hoist, 1x GRD15 and 12x LR15 cabinets on 2x FC6LR15CAT flight-case dollies.

Start with attaching the GRD15 to the first cabinet on the FC6LR15CAT wheel dolly (A). Make sure that the following dolly is lined up correctly, with the arrow

pointing towards GRD15. Attach the second dolly to the previous one, using the front couplers (B). Attach the hoist to the correct pick-point on the GRD15.

Connect the necessary cabling to the signal input/ link (5) connectors. Use a sling from the grid for a tension free cable hang. Start hoisting until the first cabinets

compress (C). Take the first dolly away for storage. Pull the angle setting pins (4) out and make the correct angles using the angle arm. 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). Be aware that wheel dollies can ride away from the building area as the last module detaches.

Landing the array caterpillar style

Ensure that the wheel dollies are correctly lined up under the array, with the arrows pointing to the front face of the array. Land the bottom pins of the front

couplers into the recess of the dolly frame. When the bottom cabinets compress, take out the angle setting pins (4). Now the array can flatten out onto the wheel

dollies. Continue doing this with all cabinets. When the complete array is stretched out on the ground, take off all cabling and pull out the front coupling pin

between the first and second wheel dolly. Then return all angle arms in their parking positions. Now the FC6LR15CAT cases can be closed up and transported.