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Related Manuals for EAW KF740
Summary of Contents for EAW KF740
- Page 1 KF740 LOUDSPEAKER OWNER’S MANUAL Including KF740P...
- Page 2 Page 2 of 22 KF740 OWNER’S MANUAL...
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Page 3: Table Of Contents
KF740 ..........................5 KF740P..........................5 UNPACKING ......................... 5 Contents ..........................5 Shipping Damage ......................5 Returning Products to EAW....................5 KF740 ARRAY DESIGN ....................... 6 EAW Resolution......................... 6 Fill Coverage........................6 Ground Stacking ........................ 6 Subwoofers........................7 ARRAY OPERATION......................8 Overview.......................... -
Page 4: Read This First
EAW transactions are made with the assumption that the purchaser is a qualified individual or will have only qualified individuals perform work with the equipment. EAW will not be liable for any damages arising from the use of equipment sold to purchaser. -
Page 5: Introduction
Please thoroughly familiarize yourself with this manual. The more you learn and understand the KF740 Line Array the easier you will find it to use. This is not so much because of any inherent complexities, but because it is actually easier to use than most, if not all, array systems. -
Page 6: Kf740 Array Design
KF740 to provide coverage almost directly beneath the array. 4.2.3 Horizontal Coverage and Side-Fill Arrays Regardless of the length of the array, a KF740 array has a horizontal beamwidth (-6 dB points) of approximately 90°, with pattern control maintained to a very low frequency. 4.2.4 KF740 Series as Side-fill Arrays KF740 side fill arrays can be hung adjacent to the mains, extending the coverage 180°... -
Page 7: Subwoofers
KF740 SB1001/1002 BH760 4.4.3 Signal Delay on Subwoofers Because subs are not flown in the same array as the KF740 it will usually be necessary to determine the signal delay settings by measurement. KF740 OWNER’S MANUAL Page 7 of 22... -
Page 8: Array Operation
Rather than use amplifier input levels, the volume controls for a KF740 array is a combination of the shape of its curvature and the quantity of KF740 units that make up the array. A shallow curve means more loudspeakers are facing a given direction, putting more energy within a given vertical angle. -
Page 9: Amplifier Gain Settings
AMPLIFIER POWER REQUIREMENTS As is true of all professional loudspeaker 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,”... - Page 10 Selecting an Appropriate Amplifier Size Rule Of Thumb If a KF740 Line Array is used for professionally operated concert applications, a rule of thumb can be applied. Where the full output capabilities of the loudspeakers may be needed to achieve appropriate acoustic output levels, EAW recommends amplifiers with power ratings up to twice the wattages listed in the above charts.
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Page 11: Input Connections
There are two Neutrik NL8 connectors on the rear of each KF740. These connections are wired in parallel inside of the unit. Use one input to power a system of KF740 loudspeakers and the other to loop through to other units in the system, it does not matter which input is used for either purpose. -
Page 12: Rigging
KF740P instillation hardware kits. Use those instructions for rigging any KF740P products and their accessories. NOTE: The ‘P’ version of the KF740 will not mate to ‘P’ versions of any other product. RIGGING WARNINGS WARNING: Suspending anything, especially overhead of people, should be done with extreme caution. -
Page 13: Attaching Enclosures To The Fly-Bar
6.4.2 Quick Release Pins Each KF740 is supplied with six tethered Quick Release Pins. Four are used for attaching enclosures together or to the Fly-Bar. Two are used as locking pins for the rear Hinges. See “Locking Pins” Section 6.4.5. - Page 14 2. A front splay angle of 18.0° requires two additional Quick Release Pins not supplied with the KF740. Please contact an EAW dealer to obtain additional Pins. Page 14 of 22 KF740 OWNER’S MANUAL...
- Page 15 Hinges and Hinge Tubes on each enclosure. When ground stacking, creating splays between enclosures REQUIRES the use of locking pins to create rear splays. Each KF740 is supplied with six 1.5 in Quick Release Pins. Two of HINGE KNUCKLE these Pins are intended for use as locking pins. Certain array...
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Page 16: Suspension Procedures
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. -
Page 17: Adaptor Bars
Resolution. 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. -
Page 18: Ground Stacking Procedures
6.7.3 in the KF730/SB730 manual to attach a KF730 or KF737 to the AB7473. Follow steps one (1) through five (5) from this manual in section 6.5.2 Attaching a KF740 to the Fly-Bar to attach the AB7473 with KF730 or KF7373 attached to an array of KF740 loudspeakers. - Page 19 1. Lift a KF740 from its pallet and turn it upside down, so the Hinges on the enclosure are on the bottom. Position it onto the Fly-Bar so its Hinges line up the Fly-Bar Hinge Tubes.
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Page 20: Service And Maintenance
SERVICE AND MAINTENANCE GENERAL SERVICE For any faults that cannot be field-repaired as noted below, contact the EAW Service Department listed in Chapter 7 to determine the appropriate action. This applies to both warranty and non- warranty faults. RIGGING SERVICE Because of the potential for serious consequences and liabilities due to faulty rigging, contact EAW to determine the appropriate service solution for any rigging hardware problems. -
Page 21: Maintenance
Otherwise, use the closest match to this paint from a local Sherwin-Williams dealer. For cosmetically damaged wood, use common woodworking methods and materials as appropriate for the damage. §§§ KF740 OWNER’S MANUAL Page 21 of 22... -
Page 22: Contacting Eaw
CONTACTING EAW We have tried to answer any questions you may have about the KF740 in this manual. Should you need further assistance, please do not hesitate to contact us. You can contact us in several different ways. OPERATING QUESTIONS AND SERVCICE INFORMATION...
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