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  5. Owner's Manual

EAW N T L 7 2 0 Owner's Manual

Summary of N T L 7 2 0

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    N t l 7 2 0 l o u d s p e a k e r o w n e r ’ s m a n u a l.

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    Ii.

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    1 safety precautions - read this first 1 . 1 s a f e t y i n s t r u c t i o n s read and heed all warnings and safety instructions in the accompanying "eaw loudspeaker owner’s manual" before using this product. Failure to follow this precaution may result in damage, injury, or death. Warning: the l...

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    Connettore più appropriato. Assicurarsi che la presa di corrente sia adeguatamente collegata a terra. Il mancato rispetto di tali norme può causare danni all'apparecchiatura, nonché infortuni alle persone o la morte. 1. Precauciones de seguridad - lea esto primero 1 . 1 i n s t r u c c i o n e s d e...

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    1 . 2 e c d e c l a r a t i o n o f c o n f o r m i t y manufacturer: eastern acoustic works — usa declares that the following product(s) have been tested and passed all relevant requirements as described below by the appropriate european directives as they apply to professional audio products. Prod...

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    C o n t e n t s 1 safety precautions - read this first . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Iii 1.1 safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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    2 unpacking 2 . 1 c o n t e n t s qty item 1 ntl720 loudspeaker 1 power cord (dependent on product's ac mains rating) 115 v - neutrik® powercon® to nema 15r plug 9.5 ft / 2.9 m or 230 v - neutrik powercon to male schuko plug 8 ft / 2.5 m 1 power cord ac loop (neutrik powercon to neutrik powercon) 1 ...

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    3 quick start if you are in a hurry or are knowledgeable about using powered loudspeakers, these quick start instructions provide the details particular to the ntl series loudspeakers. 3 . 1 r e a r p a n e l c o n n e c t o r s a n d c o n t r o l s 1 ac mains input: connect to ac mains supply as l...

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    3 . 2 i n i t i a l c o n t r o l s e t t i n g s use these nominal settings for the rear panel switches. These are multi-state “soft” switches that control software functions. Repeatedly pressing each switch cycles through its multiple states. Control setting led indication hf boost normal both led...

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    4 overview 4 . 1 i n t r o d u c t i o n the ntl720 loudspeaker is intended for professional use. The construction, components, and hardware have been designed to provide robust, reliable performance for its intended application. Please ensure that you fully understand proper installation and operat...

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    4 . 3 a m p l i f i c a t i o n as is true of all professional loudspeaker systems, the performance of the ntl720 series loudspeakers depends on amplifiers delivering an adequate supply of clean power. To maximize performance, the loudspeakers have powerful, built-in, high-efficiency amplifiers. Ntl...

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    Automatic mode: the interface will calculate the optimum number of enclosures, enclosure splays, array aiming angle, fly-bar pick point and user-control settings. This can also be done for a given inventory of ntl720s. Additional, user-variable criteria are provided for application-specific output l...

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    5 . 4 s u b w o o f e r s 5.4.1 general considerations although the impressive low frequency performance of ntl720 series arrays allows them to be used without subwoofers for some events, subwoofers will normally be used for live musical performances. Note: bass performance is often highly program o...

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    6 electrical installation 6 . 1 a c m a i n s there are two ntl720 models, differing only in the ac mains supply: ntl720 (115 v) nominal ac mains: 100 v to 120 v, 50 hz to 60 hz ntl720 (230 v) nominal ac mains: 220 v to 240 v, 50 hz to 60 hz 6 . 2 a c m a i n s c o n n e c t i o n this section detai...

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    6.2.1 netzstromversorgung warnung: lesen sie alle anweisungen und sicherheitshinweise bezüglich der netzspannung in der eaw lautsprecher bedienungsanleitung. Gefahr: versichern sie sch, dass die zur verfügung stehende netzspannung mit der auf der rückseite des lautsprechers angegebenen spannung über...

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    6 . 3 c a b l e d e a l i m e n t a c i ó n el enchufe neutrik powercon nac3fca incluido en el cable encaja en la toma de entrada neutrik powercon nac3mpa ac mains del altavoz. Precaucion: el enchufe que viene en el cable de alimentación incluido puede que no encaje en las salidas de corriente de su...

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    Caution: to maintain all compliance ratings, keep ac input voltage between 100 v to 120 v or 220 v to 240 v. Replacement 115 v ac mains cord part number: 0021435 replacement 230 v ac mains cord part number: 0015224 6 . 6 p o w e r c o r d r e c e p ta c l e the neutrik powercon ac mains inlet on the...

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    6 . 9 o p e r a t i n g te m p e r a t u r e the operating temperature range is 32° f to 131° f / 0°c to 55° c. 6 . 1 0 i n p u t c o n n e c t i o n s 6.10.1 analog signal input connection the two xlr-type connectors on the rear of each ntl720, one female and one male, are designed for professional...

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    Page 13 pc eawpilot u-net 1 u-net 2 ntl720 to next ntl720 ntl720 u-net 1 u-net 2 usb from last ntl720 1 push 6.10.3 usb connection the standard usb connection on the rear of the ntl720 is designed to connect a computer with the eawpilot control program installed. Subsequent ntl720s are connected usi...

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    6.11.2 connecting one or more ntl720s to a computer using a ux8800 use the ux8800’s front panel ethernet port and the supplied ethernet crossover cable to connect directly to a computer’s 10, 10/100, or 100 mbps ethernet port. A user-supplied, shorter or longer cable may be substituted. The ux8800’s...

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    7 array operation 7 . 1 o v e r v i e w the operation of an ntl720 series system involves: 1. Understanding the principles on which it operates. 2. How to electronically configure it for a specific task. 7 . 2 e n g i n e e r i n g d e s i g n 7.2.1 divergence shading in almost any venue, there are ...

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    7 . 3 o p e r a t i n g c o n t r o l s the operating controls on the ntl720 rear panel are momentary contact, “soft” switches. This means that they control software that does the actual switching with status lights indicating the switch “position.” pressing a switch repeatedly will cycle through it...

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    7.3.5 ac loop circuit breaker this is a resettable circuit breaker that protects the ntl720 from passing excessive current through the ac loop connector. Connect no more than four ntl720s to the ac loop connector of a single ntl720. If the circuit breaker should trip, the first ntl720 will continue ...

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    8 physical installation ntl720 series arrays are intended to be suspended or ground-stacked. This chapter details how to physically configure ntl720 series arrays. The following are the recommended methods for most situations. Specific situations may require other methods. It is the user’s responsib...

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    9 service, inspection, and maintenance 9 . 1 g e n e r a l s e r v i c e for any faults that cannot be field-repaired as noted below, contact the eaw service department listed in section 9.6.2 to determine the appropriate action. This applies to both warranty and non-warranty faults. 9 . 2 r i g g i...

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    1. On each side of the loudspeaker, release the four panel screws that attach the enclosure to the rigging assembly. 2. Slide the enclosure out from between its two rigging assemblies to the front of the array. Page 20 the enclosure is held in the array by 8 spring loaded screws. 4 from the left pan...

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    3. For each side of the enclosure, apply a few drops of loctite 222 on the threads of each of the four threaded inserts in the enclosure that mate with the panel screws in the rigging assemblies. 4. From the front of the array, slide the replacement enclosure in between its two rigging assemblies. 5...

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    9 . 4 i n s p e c t i o n a n d m a i n t e n a n c e refer to section 11 in the eaw loudspeaker owner’s manual (included) for complete information on inspecting and maintaining eaw loudspeakers and rigging systems. Before suspending in an array, the rigging right and left panel assembly of each lou...

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    Page 23 a a b b b b b c c c c position torque requirement a 81 kg-cm (70.3 lb-in) b 75 kg-cm (65.1 lb-in) c 36 kg-cm (31.3 lb-in) + loctite 222 d 10 kg-cm (8.7 lb-in) table 1.

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    Page 24 d d d d (4) panel screws on each side, accessible through holes in side panels, are to be fully engaged and secure. If loose, they should be fully released, apply loctite® 222 to the threads, then re-assembled and set to 46 kg-cm (39.9 lb-in)..

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    Page 25 9 . 5 c o n t a c t i n g e aw we have tried to answer any questions you may have about the ntl720 in this manual and in the eawpilot/ntl720 array wizard help files. Should you need further assistance, please do not hesitate to contact us. You can contact us in several different ways. 9.6.1 ...

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    Page 26 10 signal flow and block diagram 1 0 . 1 s i g n a l f l o w d i a g r a m the signal flow diagram shows the signal flow for two ntl720s. As can be seen, the audio input signal, ac mains, and the u-net signal can be looped from one ntl720 to additional ntl720s. While the audio and u-net cabl...

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    1 0 . 2 b l o c k d i a g r a m the block diagram shows the dsp blocks for the ntl720. The user dsp is configurable using the eawpilot software application. The preset dsp is not user-configurable and is designed to optimize the performance of the ntl720s. Page 27 bypassable user dsp (eawpilot) rear...

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    One main street, whitinsville, ma usa 01588 tel 508-234-6158 fax 508-234-6479 © 2008 loud technologies inc. All rights reserved. P/n 0025248 rev. A 03/18/08.