AVSL CLA-300 User Manual

CLA-300
Active Compact Line Array
Item ref: 171.227, 171.228
User Manual
Warning
To prevent risk of fire or electric shock, do not expose any of the components to rain or moisture. If liquids are spilled on the amplifier panel, stop using immediately, allow unit to dry out and have checked by qualified personnel before further use. Avoid impact or dropping of the cabinets.
No user serviceable parts inside – Do not open the case – refer all servicing to qualified service personnel.
Safety
Ensure all fixings are secure and adequate for supporting the weight of the CLA-300 Ensure that the power cord is in good condition and adequate for the power rating Check for correct mains voltage and condition of IEC lead before connecting to power outlet Ensure speaker link leads are good condition with no short connections or damaged plugs Connect no more than 4 mid-top array cabinets to one active sub unit Avoid constant overload of the unit (indicated by constant lighting of the PEAK LED) Do not allow any foreign objects to enter the case or through the speaker grilles In case of failure of the CLA-300, disconnect from the mains and check fuse. If fault repeats,
refer to qualified service personnel
Placement
Keep amplifier panel out of direct sunlight and away from heat sources Avoid damp or dusty environments Ensure that the CLA-300 is not positioned in a manner that may cause injury Ensure adequate access to controls and connections
Cleaning
Use a soft cloth with a neutral detergent to clean the casing as required Use a vacuum cleaner to clear ventilation grilles of any dust or debris build-ups Do not use strong solvents for cleaning the unit
Introduction
Thank you for choosing the Citronic CLA-300 active compact line array system. This self-contained unit can operate independently or as part of a larger system to provide accurate, full-range sound reproduction for applications as diverse as theatre, conference, live music venues and houses of worship. Please read and follow the instructions in this manual to achieve the best results and avoid damage through incorrect usage.
Description
The CLA-300 is a self-contained active speaker system which combines an active 2 x 8” subwoofer with a group of 4 arrayed mid-top cabinets. The power amplifier section is housed in the subwoofer unit which, in turn, is linked to power the 4 mid-top cabinets. Each mid-top cabinet houses a pair of 4” mid drivers and a precision ribbon tweeter for high frequencies and is engineered to provide a focused vertical output with a very wide dispersion for maximum horizontal coverage
The input signal is fed via a digitally controlled EQ and dynamics processor to maximize efficiency in the system and enable frequency adjustment to tailor the output to suit the venue or application. Connection to a PC gives access to the DSP processor using the supplied software CDROM, allowing bespoke programming of the response and tone characteristics of the sub and array.
Various installation methods are possible with the custom-designed mounting/flying frame, depending upon the building or surroundings and can be combined to provide modular arrays or multi-point sound reinforcement for larger areas.
Components
Please check the contents when opening the packaging. If any components are missing or damaged, contact your dealer immediately. The package should contain...
1 x Active subwoofer unit 4 x Passive line-array mid-top cabinets 1 x Mounting/flying frame 1 x Packet of fixing hardware 1 x Software CDROM 1 x Mains lead 1 x RS-232 cable 1 x USB cable 4 x Speaker leads
Assembly
The CLA-300 may be assembled as a single vertically flown array, inverted as a floor-standing stack or combined into a multiple array. Assembly for standard flown orientation is shown below.
1. Secure the 4 x M8 eyebolts to the corners of the flying frame. Each eyebolt must be securely
fixed using the appropriate hardware to ensure that there is no movement of the fixing or possibility of becoming unfastened through movement or vibration and should be suspended from a permanent fixing in the ceiling which is adequate for holding the weight of the complete line-array.
2. Undo the M5 thumb screws at the bottom of the active sub and take out the Passive-Active Link
3. Undo the 2 x M5 thumb screws at front side of the passive unit, align the holes with similar at
the base of the sub and fasten the M5 screws through both, securing passive units to the sub
4. Attach the Passive-Active Link and Passive Back Link brackets as shown below (Angle adjustment
is explained in the “Installation” section)
Installation
Single Flown Array
For standard single flown array, installation is executed using 4 supplied eyebolts attached to each corner of the flying frame. Fixings should be the strongest possible type for the substrate or ceiling supports to ensure a fail-safe installation. Suspension via wire rope or steel cables, each with a breaking strain of no less than 200kg is recommended per single line-array system. In some situations, it may be easier to suspend the sub unit first and then assemble line-array speakers below it, ensuring that the weight of each is adequately supported before securing to the array.
Once assembled, the line-array can be curved to address the listening field by selecting various angle points on the Passive Back Link brackets provided. The angle chosen depends largely upon the distance from the audience and the acoustic environment but should be adjusted so that each array speaker unit is vertically focused to evenly distribute the output across the listening field.
Each Passive Back Link bracket has numbered lines for tilt in degrees. Number 1 Hole is used for even number degrees tilt and Number 2 Hole is used for odd number degrees of tilt. Whilst supporting the weight of the passive speaker, use these lines to align the correct fastening hole for the degree of tilt required for each component in the array.
For example, if the required splay angle is 5, the line marked with the number 5 on the Passive Back Link must be aligned with the bottom edge of the groove on the back of the top speaker. The Number 2 Hole on the lower speaker can aligned with the hole in the Passive Back Link and secured using the M5 screw.
Multiple Flown Array
For multiple flown line-array, installation is similar to that of a single array with sub cabinets coupled together and passive units all flown in a single, longer array.
With the uppermost sub unit attached to its flying frame, secure the 4 x M8 eyebolts for flying. Undo the 2 x M5 thumb screws at the bottom of the sub unit and remove the Active-Passive Link bracket.
Subsequent sub units are attached underneath by removing the flying frame(s) and aligning the 4 top corner mounting holes with corresponding holes on the bottom of the sub unit above it. These are secured through using the 4 x M5 thumb screws accordingly.
Connection of passive units from the bottom sub unit is executed in the same way as for a single line array, with each group of 4 passive units linked in a single line-array.
Floor-standing Stack
Where flying or ceiling mounting is not possible, it may be useful to arrange the CLA-300 as a free-standing stack on the floor or on a stage. In this orientation, the sub unit sits on its flying frame on the floor and the passive units are splayed upwards above the sub unit.
Prior to assembly, do not attach the 4 x M8 eyebolts to the flying frame. If the frame is likely to damage the floor surface, protect with rubber or other scratch­resistant material.
Assemble passive units above the sub in the same manner as for a standard flown array shown above but inverted. Splayed angle adjustment may be used for venues with raised rear seating areas (e.g. theatres)
Connection
Using the supplied speaker leads, connect 4 passive units to one sub unit as shown below. For multiple arrays, connect each group of 4 passive units to one sub unit. No more than 4 passive units may be connected to a single sub. Use the supplied IEC lead to connect to mains, ensuring correct voltage and power capacity Connect signal input via XLR (connect to LINE input – not to be confused with RS-485 input) To continue the signal onto further units, connect from the XLR LINE output
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