WLA-12 OPERATING MANUAL AND USER GUIDE www.wharfedalepro.
OPERATING MANUAL AND USER GUIDE Important Warnings And Safety Instructions • • • • • • • • • • • • • Read these instructions Follow these instructions Keep these instructions for future reference Heed all warnings Do not use this system near water or moisture Clean only with a dry cloth Install in accordance with these Wharfedale Pro operating instructions Follow the manufacturers operating instructions for all peripheral devices such as amplifiers and processors Do not install near heat sources such as
WLA Series Contents Important Warnings And Safety Instructions....................................................1 Introduction...........................................................................................................3 Features................................................................................................................4 Splay Angles.........................................................................................................5 Level Tapering...................
OPERATING MANUAL AND USER GUIDE Introduction The Wharfedale Pro WLA-12 is a mid format line array system with exceptional output, frequency response, directivity and throw capability. High tech transducers and enclosure design techniques give the WLA-12 a perfect power to size ratio. The WLA-12 achieves ultra high sensitivity with its fully horn-loaded architecture. A horn-loaded 12” LF is combined with three horn-loaded titanium compression drivers for the HF, generating huge SPL with maximum efficiency.
WLA Series Features High Sensitivity, Full Horn Loaded Design 400W/800W/1600W Power Handling 12” Horn Loaded LF Driver 3” LF Voice Coil 3x 1” Exit HF Compression Drivers 1.
OPERATING MANUAL AND USER GUIDE Splay Angles The WLA can be configured with several different splay angles. The splay angles determine the amount of overlap between individual units. This is used to determine the amount of summation, or “throw”, for separate sections of the array. As the splay angle between boxes increases the summation decreases but spectral variance due to interactions between elements is also decreased.
WLA Series Air Absorption The high frequency performance of the medium and long throw sections of the line array will be limited by air absorption. As the distance from the source increases, the mid and high frequencies will be reduced. The amount of absorption at a given frequency is a function of pressure, temperature, and relative humidity. By far the most important factor is the relative humidity, although temperature does have a significant effect.
OPERATING MANUAL AND USER GUIDE Air Absorption Humidity (%)
WLA Series Full Range Mode
OPERATING MANUAL AND USER GUIDE Bi-Amp Mode
WLA Series Parallel Wiring 10
OPERATING MANUAL AND USER GUIDE WLA-12 Fly Frame THE WLA-12 AND FLY FRAME IS CERTIFIED TO HOLD A TOTAL WEIGHT (INCLUDING THIRD PARTY HARDWARE) OF 750KG. 12 ELEMENTS CAN BE FLOWN WITH A SAFETY FACTOR OF 5.7. Only use the Wharfedale Pro WLA-12 with the WLA Flyframe. Ensure that only rated, certified hardware such as turnbuckles, shackles and chains are used. Ensure that all truss, structures and flying hardware are capable of suspending the entire array, plus flying hardware, to a suitable safety factor.
WLA Series 12
OPERATING MANUAL AND USER GUIDE WLA-12 Dolly The WLA-12 Dolly should always be used when flying a WLA-12 line array system. Each WLA-12 Dolly will hold a single WLA-12 element. The WLA-12 Dolly helps to protect the WLA-12 element and aid the connection and flying process.
WLA Series Installation One Point Hang Procedure - Method 1 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. Attach a suitably rated shackle to the center spine of the fly frame. Use washers to ensure the shackle pin is centered on the spine. The connection point will depend on the splay angles used in your array and can be used to aim the array. Line up all elements face down on dollies. Attach the front of the elements to each other with quick release pins. Attach a Pull Back Bar if required.
OPERATING MANUAL AND USER GUIDE Method 1 & 2 Diagram THE WLA-12 AND FLY FRAME IS CERTIFIED TO HOLD A TOTAL WEIGHT (INCLUDING THIRD PARTY HARDWARE) OF 750KG. 12 ELEMENTS CAN BE FLOWN WITH A SAFETY FACTOR OF 5.7.
WLA Series Two Point Hang (Limited Space) Procedure - Method 3 1. 2. 3. 4. 5. 6. 7. 8. 9. Attach suitably rated shackles to the front and rear holes on the center spine of the fly frame. Use washers to ensure the shackle pins are centered on the spine. Attach locking hoist hooks to the shackles on the Fly Frame. Raise the Fly Frame so that the rear connection points are lined up. Position an element below the Fly Frame and attach the rear of the element to the Fly Frame using quick release pins.
OPERATING MANUAL AND USER GUIDE Method 3 Diagram THE WLA-12 AND FLY FRAME IS CERTIFIED TO HOLD A TOTAL WEIGHT (INCLUDING THIRD PARTY HARDWARE) OF 750KG. 12 ELEMENTS CAN BE FLOWN WITH A SAFETY FACTOR OF 5.7.
WLA Series Dimensional Drawings - WLA-12 ������ � ����� ����� ����� ������ � ����� ������ � ������ � 18
OPERATING MANUAL AND USER GUIDE Dimensional Drawings - WLA-12 Fly Frame THE WLA-12 AND FLY FRAME IS CERTIFIED TO HOLD A TOTAL WEIGHT (INCLUDING THIRD PARTY HARDWARE) OF 750KG. 12 ELEMENTS CAN BE FLOWN WITH A SAFETY FACTOR OF 5.7.
WLA Series Dimensional Drawings - WLA-12 Dolly 20
OPERATING MANUAL AND USER GUIDE Example Arrays THE WLA-12 AND FLY FRAME IS CERTIFIED TO HOLD A TOTAL WEIGHT (INCLUDING THIRD PARTY HARDWARE) OF 750KG. 12 ELEMENTS CAN BE FLOWN WITH A SAFETY FACTOR OF 5.7.
WLA Series Specification System Specification System Type Frequency Range (-10dB) Frequency Response (±3dB) Sensitivity (1w@1m) Peak SPL System Impedance Power Handling Continuous Music Peak LF Driver Driver Size Frame Material Impedance Quantity HF Driver Driver Size Frame Material Impedance Quantity Enclosure Dimensions (L) Front (W) Back (W) (H) Enclosure Type Finish Finish Colour Construction Material Thickness Grille Input Connectors Carton Dimensions (L) Front (W) Back (W) (H) Weight Net Weight Gross
Wharfedale Professional IAG House, 13/14 Glebe Road, Huntingdon, Cambridgeshire, PE29 7DL, England www.wharfedalepro.com Wharfedale Professional reserves the right to alter or improve specifications without notice. All rights reserved © 2013 Wharfedale Pro. Wharfedale Pro is a member of the IAG Group.
