Conditions Of Use - Axiom AX12C User Manual

High output column array

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Table Of Contents

Table of Contents

Installation using KPTAX12C flybar

Using the KPTAX12C fly bar it is possible to assemble a suspended and unobtrusive vertical array system

with a variable size up to 4 elements of AX12C, or a combination of AX12C, AX6C and AX12LF without

exceeding the 120Kg maximum load capacity. The loudspeakers are linked together in a column using

the brackets integrated at each end of the enclosure. Each system can be set properly both acoustically

and mechanically using the aiming software.

Each loudspeaker box is fixed to the next one using the two locking pins. The locking pin in the front

does not require any adjustment, while the locking pin in the back is used to adjust the splay angle

between two adjacent loudspeakers in the array column at 0° or 2°.

Follow the sequence in the figure for fixing the flybar to the first box. Usually this is the first step before

lifting up the system. Be careful to insert properly the shackle (1)(2) and the locking pins (3)(4) in the

right holes specified by the aiming software.

When lifting the system always proceed gradually step by step, paying attention to secure the flybar

to the box (and the box to the other boxes) before pulling up the system: this makes easier to insert

properly the locking pins.

Also when the system is released down, unlock gradually the pins.

The centre of gravity of an AX12C/AX6C/AX12LF array depends on the number of units and on the

splay angle between the units, when the units are arranged to make an arc for the best coverage of the

audience. Use always the aiming software to define the correct suspension pinpoint where to fix the

straight shackle and the optimal splay angle between units.

Note that the ideal aiming angle often doesn't correspond to the pinpoint: there is often a little

difference between ideal aiming and real aiming and its value is the Delta angle: positive delta angle

can be adjusted a little using two ropes, negative delta angle are self adjusted a little because the cables

weights on the back of the array. With some experience it's possible to consider preventively these

required little adjustments.

During the flown set up you can connect the elements of the array to their cables. We suggest to

discharge the weight of the cables from the flying pinpoint by tying them with a textile fibre rope, for

this reason a ring is present at the end of the flybar that can be used to fix the cable instead of letting

them hang freely: in this way the position of the array will be much more similar to the simulation

produced by the software.

Wind loads

When planning an open-air event it is essential to obtain current weather and wind information. When

loudspeaker arrays are flown in an open-air environment, possible wind effects must be taken into

account. Wind load produces additional dynamic forces acting on the rigging components and the

suspension, which may lead to a dangerous situation. If according to the forecast wind forces higher

than 5 bft (29-38 Km/h) are possible, the following actions have to be taken:

- The actual on-site wind speed has to be monitored permanently. Be aware that wind speed typically

increases with height above ground.

- Suspension and securing points of the array should be designed to support double the static load in

order to withstand any additional dynamic forces.

WARNING!

Flying loudspeakers overhead at wind forces higher than 6 bft (39-49 Km/h) is not

recommended. If the wind force exceeds 7 bft (50-61 Km/h) there is a risk of mechanical damage

to the components which may lead to a dangerous situation for persons in the vicinity of the

flown array.

- Stop the event and make sure that no person remains in the vicinity of the array.

- Lower and secure the array.

WARNING!

AX6C, AX12C and AX12LF must be suspended only using the flying bar KPTAX12C, with a

maximum of 120Kg per flying bar.