L-ACOUSTICS LA8 [50/56] La la la la888
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L-ACOUSTICS LA8 [50/56] La la la la888

L-ACOUSTICS LA8 [50/56] La la la la888
LA
LALA
LA8
88
8
AMPLIFIED CONTROLLER
AMPLIFIED CONTROLLERAMPLIFIED CONTROLLER
AMPLIFIED CONTROLLER
USER MANUAL
USER MANUALUSER MANUAL
USER MANUAL
VERSION 4.0
LA8_UM_EN_4-0
w w w . l - a c o u s t i c s . c o m
48
4848
48
8.3.4
Unexpected
sound quality
8.3.5
Overheati
ng
Unexpected
sound quality
Hum or
Buzz?
Check
signal XLR cables
and
connections on both sides
Controller’s
input channels
clipping? **
Lower the audio
source level
Speaker
cables correctly
wired? ***
Check
speakers cabling
***
Speakers
operating
normally?
Check
speaker
s
Yes
No
No
Yes
Yes
Yes
No
Yes
No
C
ontroller’s
output channels
clipping?
Check source signal
Source
signal clear and
undistorted?
Yes
No
Set the output and/or
input gain to a lower
value *
Reload the factory
preset from the
on-board library
and store it to a
user memory
location
Yes
Trouble
solved?
END
No
Contact an L
-
ACOUSTICS
®
Representative
Overheating
Controller getting
enough cool air?
Clean or replace the
filter [8.2.2]
Install the controller so
as to ensure efficient
cooling circuit [
6.2
]
FOAM filter
clogged?
Controller
operating within
rated impedance?
Ch
eck that n
othing causes a
short-circuit at the
controller's outputs (wrong
cabling scheme, broken
cable, or short-circuit in the
speaker’s voice coil).
Check that the number of
enclosures wired in parallel
to the same controller
output is not too high.
No
No
No
Yes
Yes
Yes
Contact an L
-
ACOUSTICS
®
Representative
*
Press
and hold one of the
OUT 1
:
4 / IN A
-
B
keys to check
the corresponding output or input gain value [7.3.1].
** Press and hold one of the IN A-B keys to check the
corresponding input signal level [7.3.1].
*** For example, check if LF and HF connections have not been
inverted when connecting an active enclosure.

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