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Next LA8

V2

 User’s Manual 

www.next-proaudio.com 

- 11 - 

TROUBLESHOOTING 

 

 

Simple  troubleshooting  does  not  require  sophisticated  measurement  equipment 

and can be easily undertaken by users. The technique should be to segment the system in 
order  to  identify  the  faulty  system  component:  signal  source,  controller,  amplifier, 
loudspeaker  or  cable?  Most  installations  are  multi-channel.  It  is  often  the  case  that  one 
channel  works  and  others  do  not.  Trying  different  combinations  of  system  elements  can 
usually help to isolate and locate the fault.  
 

Some  cabinet  faults  can  be  quite  easily  identified  and  corrected  by  the  user. A 

simple sweep with a sine wave generator can be very helpful though it MUST be made at a 
fairly low level to prevent damage to the speakers. A sine wave sweep can help find:  
 

 

Vibrations due to loose screws.  

 

Air-leak noises: check that no screws are missing, particularly where the accessories 
attach to the cabinet.  

 

Vibrations due to a front grille badly positioned on the quick release fixings. 

 

Foreign object that has fallen into the cabinet after repair or through the ports.  

 

Internal connection wires or absorbing material touching the loudspeaker diaphragm: 
check by removing the bass loudspeaker.  

 

Loudspeaker not connected or phase reversed following a previous inspection, test or 
repair.  

 

WARRANTY 

 
 
 
NEXT  products  are  warranted,  by  NEXT-proaudio,  against 

manufacturing  defects

  in 

materials  or  craftsmanship  over  a  period  of  2  years  from  the  date  of  original  purchase. 
During the warranty period NEXT-proaudio will, at its own discretion, either repair or replace 
products  which  prove  to  be  defective  provided  that  the  product  is  returned  in  its  original 
packaging, shipping prepaid, to an authorized NEXT-proaudio service agent or distributor. 
NEXT-proaudio cannot be held responsible for defects caused by unauthorized modifications, 
improper use, negligence, exposure to inclement weather conditions, act of God or accident, 
or any use of this product that is not in accordance with the instructions provided by NEXT-
proaudio. NEXT-proaudio is not liable for consequential damages. 
This warranty is exclusive and no other warranty is expressed or implied. This warranty does 
not affect your statutory rights. 
 
 

Содержание LA8V2

Страница 1: ...USER MANUAL LA8V2 Professional Line Array Element...

Страница 2: ...1 Content INTRODUCTION 2 SAFETY FIRST 2 UNPACKING 3 LA8V2 OVERVIEW 3 CONNECTIONS AND ELECTRIC DIAGRAM 4 AMPLIFICATION 6 CABLE SELECTING 7 RIGGING SYSTEM 7 TROUBLESHOOTING 11 WARRANTY 11 TECHNICAL SPEC...

Страница 3: ...NGER HEARING DAMAGE LA8V2 line array systems are capable of producing extremely high sound pressure levels and should be used with care Hearing loss is cumulative and can result from levels above 90dB...

Страница 4: ...ou understand all local and national regulations regarding equipment installation Failure to comply with these instructions may result on injury or death UNPACKING Each NEXT LA8V2 line array element i...

Страница 5: ...phase plug that widens dispersion on the horizontal coupling plane while narrowing it on the vertical plane For high frequency reproduction the LA8V2 is equipped with two 1 compression drivers mounted...

Страница 6: ...ither connector can be used to connect to the amplifier or another LA8V2 element Please notice that LA8V2 line array element is bi amp only Despite having a crossover network it wasn t designed to wor...

Страница 7: ...achieves some predefined goals In the lower frequencies both speakers reproduce achieving a higher impact on the bass range In the mid frequencies virtually only one speaker is reproducing reducing th...

Страница 8: ...mping factor The following table indicates for 3 common sizes a cable length with a maximum serial resistance equal to 4 of the load impedance damping factor 25 Cable section Maximum Length related to...

Страница 9: ...o 12 LA8V2 elements You will also need the NEXT VP60052 lock pins Never use any lock pins but the ones supplied by NEXT Proaudio These pins are built to withstand the system s weight with a good safet...

Страница 10: ...Next LA8V2 User s Manual www next proaudio com 9 After reading and understanding the Safety first chapter do as follows to rig the system...

Страница 11: ...Next LA8V2 User s Manual www next proaudio com 10 Here s an example of a four element system with 2 5 and 7 angles...

Страница 12: ...reign object that has fallen into the cabinet after repair or through the ports Internal connection wires or absorbing material touching the loudspeaker diaphragm check by removing the bass loudspeake...

Страница 13: ...dling Continuous program LF MF 800W Cont 1600W Peak HF 100W Cont 400W Peak Impedance LF 4 Freq 250 Hz MF 8 Freq 250 Hz HF 16 Sensitivity 1W 1m Half space LF MF 98dB HF 106dB Max SPL calculated LF MF 1...

Страница 14: ...LA8 Front Left Suspension Assembly NCS02502 LA8 Front Right Suspension Assembly NCS03502 LA8 Rear left Suspension Assembly NCS04502 LA8 Rear Right Suspension Assembly CONTACTS In case of any doubts o...

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