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EAW KF740, Руководство пользователя

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EAW KF740 Скачать руководство пользователя страница 17

7.  Attach each Hinge to the Hinge Tube by inserting a Quick Release Pin (removed in Step 

2) through both. 

8.  Lift the Array, with the KF740 attached only by its rear Hinges, to a comfortable working 

height for the next step. 

  

NOTE: The following two steps require two people 

 
9.  The first of two people required to complete the attaching process lifts the front of the 

KF740, rotating it on the attached rear Hinges. 

10. The second person slides the KF740’s front Hinges into the suspended KF740’s Hinge 

Tubes.  

 

CAUTION:  When attaching the front Hinges, the normal configuration is tight packing the 
enclosure fronts unless otherwise indicated by Resolution.  

 

NOTE: It will usually be necessary to nudge the KF740 enclosure being attached backwards 
to line up its Hinges with the Hinge Tubes on the suspended enclosure above. 

 

11. Attach each Hinge to the Hinge Tube by inserting a Quick Release Pin (removed in step 

7) through both.  

12.  Repeat Steps 1 to 10 for additional KF740 loudspeakers. 
  

6.5.4 

Setting the Tilt Angle for the Entire Array 

Normally, the easiest method is to use a clinometer, such as a simple, bubble-
type angle finder (pictured). More sophisticated, albeit more expensive, 
electronic clinometers can also be used. 
 
Place the angle finder against one of the rigging tubes on the face of the 
uppermost enclosure in the array that can be physically reached. Adjust the 
angle of the entire array so that the face of this enclosure is set at its 
prescribed aiming angle listed in Resolution. 
 

6.6 

ADAPTER BARS 

KF740 arrays can be mounted under an array of KF760 or KF761 and above an array of KF730 
or KF737 loudspeakers with specially designed adapter-bars available from EAW. 
 
Consult Resolution when designing a mixed KF array to obtain proper splay angles and hardware 
configurations.   Information on building arrays of KF760 and KF761 loudspeakers can be found 
in the KF760 rigging guide.  Information on building arrays of KF730 and KF737 loudspeakers 
can be found in the KF730/SB730 manual.  These documents along with detailed instructions for 
each adapter bar can be found on the downloads portion of the EAW web site at  
http://eaw.com/downloads/ 
 

 
 
 
 

Description 

Name Part 

Number 

KF760/761 to KF740 or KF730/737 

AB7674-73

 

2034117

 

KF740 to KF730/737 

AB7473

 

0032870

 

 

 

 

6.6.1 

Attaching a KF740 to an AB7674-73 

 
It is recommended to begin the process by attaching the adapter-bar to a KF740 prior to the 
KF760 or KF761.  Follow steps one (1) through five (5) of section 6.5.2 

Attaching a KF740 to the 

Fly-Bar.

   

 

KF740 OWNER’S MANUAL   Page 17 of 22 

Содержание KF740

Страница 1: ...KF740 LOUDSPEAKER OWNER S MANUAL Including KF740P ...

Страница 2: ...Page 2 of 22 KF740 OWNER S MANUAL ...

Страница 3: ...rocessing 8 5 5 Amplifier Gain Settings 9 5 6 User Adjustments 9 5 7 Amplifier Power Requirements 9 5 8 Input Connections 11 6 RIGGING 12 6 1 Rigging Warnings 12 6 2 Suspension Load Rating Working Load Limits WLL 12 6 3 Fly bar Rigging Recomedations 12 6 4 Attaching Enclosures to the Fly Bar 13 6 5 Suspension Procedures 16 6 6 Adaptor Bars 17 6 7 Ground Stacking Procedures 18 7 SERVICE AND MAINTEN...

Страница 4: ...iptions of the safety precautions CAUTION describes an operating condition or user action that may expose the equipment or user to potential damage or danger WARNING describes an operating condition or user action that will cause damage to the equipment or injure the user DANGER describes an operating condition or user action that will immediately damage the equipment or be extremely dangerous or ...

Страница 5: ...gging information for this purpose is provided in this manual 2 2 KF740P The KF740P is physically configured for permanent installation Full rigging information and instructions for the KF740P is provided with the KF740P rigging hardware kits All non rigging information provided herein applies to the KF740P 3 UNPACKING 3 1 CONTENTS KF740 1 KF740 loudspeaker 6 Tethered quick release pins 3 2 SHIPPI...

Страница 6: ... s dimensions Difference between the array beamwidth angle and the needed coverage angles Height of the array and trim height to the bottom of the array from the floor Pick Point on the Fly Bar to achieve the calculated array angle when suspended Weight of the array 4 2 FILL COVERAGE 4 2 1 Up Fill Some applications such as theaters and small arenas can require up fill coverage from the array In th...

Страница 7: ...bwoofers in a ratio of two KF740 loudspeakers to one SB1001 1002 subwoofer NOTE Bass performance is often highly program or venue dependent as well as subjective as to quantity and quality For this reason the type quantity and disposition of subwoofers may vary considerably with the application The quantity recommendations below are for general purposes providing a balanced system for most music a...

Страница 8: ... understand how a KF740 array works Specifically 1 More splay at the rear of the enclosures turns the volume up adds less curvature to the array 2 Less splay at the rear of the enclosures turns the volume down adds more curvature to the array 3 More enclosures provide a greater vertical coverage angle 4 Fewer enclosures provide less vertical coverage angle EAW Rersolutionuses the above variables t...

Страница 9: ...ker systems the performance of the KF740 depends on amplifiers delivering an adequate supply of clean power Determining the appropriate power amplifier wattage for a given loudspeaker and application is a subject of some debate In fact there are three distinct issues regarding amplifier power as discussed in the next sections Power Ratings Selecting an Appropriate Amplifier Size and Operating Limi...

Страница 10: ...arts This provides a peak voltage capability of 6 dB above the specified rms voltage limit This assumes the audio signals will have a peak to average ratio in excess of 6 dB which is usually but not always true Under this condition the thermal limits are unlikely to be exceeded While this rule of thumb is consistent with the EAW s testing parameters it does NOT guarantee trouble free operation Tha...

Страница 11: ...he system it does not matter which input is used for either purpose KF740 INPUT NL8 each of two LF Side PIN 1 LF Side LF Front PIN 2 LF Front MF PIN 3 1 MF HF PIN 4 HF 5 8 2 KF740P Input Connections There are two 8 terminal barrier strip connectors on the rear of each KF740P The connectors are wired in parallel so that the second connector can be used to loop signals to additional KF740s The conne...

Страница 12: ...sult in damage to the equipment injury or death CAUTION A KF740 weighs approximately 107 lb 49 kg Always use two people or mechanical assistance to lift a KF740 IMPORTANT RIGGING NOTE Each Quick Release Pin used to attach enclosures together can be inserted into one of several holes in both the Hinges and Hinge Tubes integral to the enclosures The particular holes used set the splay angle between ...

Страница 13: ...esult in the correct array tilt angle when all enclosures are flown One motor may be easier to deploy than two 2 Employ two chain motors one attached to the front of the Fly Bar and the second to the rear The attachment can be to the Center Holes The array will be easier to assemble because it allows tilting the enclosures already suspended to better match the angle of the next enclosure to be att...

Страница 14: ...will determine the splay angles between the loudspeaker aiming axes The rear splays required for these splay angles and the Hinge and Hinge Tube Holes to use to achieve them are designated by Resolution KF740 to Fly Bar Rear Hinge Hole Rear Hinge Tube Hole Front Hinge Hole Front Hinge Tube Hole 0 2B 1A Upper 3 0 2A 1A Upper 6 0 3A 1A Upper KF740 to KF740 1 Front Splay Angle Rear Hinge Hole Rear Hi...

Страница 15: ...ns are intended for use as locking pins Certain array configurations and array tilts can cause the collapse of any open splays between KF740 enclosures This is more likely to occur the more the array is curved relative to its length Locking pins can prevent the occurrence of splay collapse Locking pins are inserted in the Hinge Tubes through the hole in the part of the Hinge that is captive to tha...

Страница 16: ...tion 2 Remove the Quick Release Pins from the top of the enclosure s Hinge Tubes and lock the rear hinges as described in 6 4 5 3 Lower the fly bar onto the rear hinges of a KF740 and pin them 4 Fully lower the fly bar onto the KF740 until the front of the fly bar is resting on the KF740 5 Extend the front hinges into the Fly bar and pin them 6 Lift the array to the working height needed for the n...

Страница 17: ...xpensive electronic clinometers can also be used Place the angle finder against one of the rigging tubes on the face of the uppermost enclosure in the array that can be physically reached Adjust the angle of the entire array so that the face of this enclosure is set at its prescribed aiming angle listed in Resolution 6 6 ADAPTER BARS KF740 arrays can be mounted under an array of KF760 or KF761 and...

Страница 18: ... rigging an array of KF730 or KF737 loudspeakers Improper handling of products or rigging procedures can cause damage to the product personal injury or death 6 7 GROUND STACKING PROCEDURES Up to six KF740 loudspeakers may be ground stacked Always stack KF740s using the KF740 Fly Bar as a base for the stack DANGER A ground stack of more than six KF740 enclosures may shift the center of gravity maki...

Страница 19: ... rear Hinge Tubes as a locking pin 6 7 3 Stacking Additional Enclosures Fly Bar as the base CAUTION When attaching Hinges to Hinge Tubes in step 5 use the correct holes as determined by Resolution or by the user desired angles to achieve the desired splay angle Failure to follow this instruction can result in poor acoustical performance 1 Lift a KF740 from its pallet and turn it upside down so the...

Страница 20: ...g Use your ears and test signals or other sound source to determine which one is at fault Normally a faulty transducer requires service or replacement by EAW 7 3 2 Input panel Internal Components and Wiring Faults with these items will usually cause transducers to stop working or possibly be intermittent Check that audio signals pass from the input jacks to the transducer terminals Many faults wit...

Страница 21: ...Cracks or breaks in the wood 2 Bent wheels 3 Wheels that bind when swiveled or rolled 4 Damaged tires 7 5 MAINTENANCE 7 5 1 Performance Testing Listening tests and or formal measurements should be done periodically The interval between such tests will depend on the frequency of system usage and the conditions of use All transducers should be tested for functionality and proper performance A sine w...

Страница 22: ...RVCICE INFORMATION For questions about configuring or operating the loudspeakers contact EAW Applications Support Group Tel 508 234 6158 Tel 800 992 5013 USA only Fax 508 234 8251 e mail asg eaw com 8 2 GENERAL For all other information Mail Eastern Acoustic Works One Main Street Whitinsville MA 01588 USA Tel 508 234 6158 Tel 800 992 5013 USA only Fax 508 234 8251 Web Site http www eaw com e mail ...

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