Lanzar Car Audio MAXP 2960 Manuel utilisateur

Catégorie
Amplificateurs audio de voiture
Taper
Manuel utilisateur
USER’S MANUAL
AMPLIFIERS:AMPLIFIERS:
R
R
:
::
:
RR
R
::
:
SS
S
S
:
RS
R
S
R
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MAXP 2760/MAXP 2960/MAXP 4260
TABLE
OF
CONTENTS
Contents and introdction -- -- - ---- -- - ---- -- - ---- --- ---- --- -- -- ---- - -- ---- --- ---
Page
1
Amplifier featuer descriptions -------- - ------ - ------ - ------- ------- -- -- --- -- -- -
_.
Page
2
MAXP2760/MAXP2960
channel amplifier applications- -- -- --- -- -- --- -- -- --- ---- - --
_.
Page
3
MAXP4260
channel amplifier applications-- --- ---- --- ------- ------- - ------ - ------ -
Page
4
MAXP4260
channel amplifier applications -- - -- ---- - -- ---- --- ---- --- ------- - ------ -
Page
5
MAXP4260
channel amplifier applications-- --- -- -- --- -- -- --- -- -- --- ---- - -- ---- - ---
Page
6
Setting
up
systems after installation for best performance -- -- ------- ------- - ------ -
_.
Page
7
Max pro series amplifier specifications --- - ------ - ------ ------- -------- ------- -- - --
Page
8
Troubleshooting ----- - ---- -- - ---- -- - ---- --- -- -- --- -- -- --- -- -- ------- ------- - --
Page
9
INTRODUCTION
Thank
you
for
purchasing
the
Lanzar MAXP
PRO
series amplifier.
Rest
assured
you
have purchased a
quality
product
designed
and
engineered 0 give
you
many
years
of
uncompromised
musical service.
The MAXP
PRO
series amplifier has been desigl"iled
using
the
latest
in
electronic
technology
available
today
This
mono
subwoofer amplifer
is
the result
of
adVanced
high
speed switching technology that overcomes the
less-efficient ciassA8 design.
Tliie MAXP
PRO
series amplifier reflects
your
true
appreciation
for
powerful
bass
reproduction
in
the
mobile
enviro ment.
This
amplifier
is
designed
for
10
-frequency
information
only
and
it
is
not
capable
of
reproducing
any
mid/high-frequency
information.
This
is
due
to
the noise intro'duced into the
filtered
out
of
the audio signal
-
AMPLIFIER
FEATUER
DESCRIPTIONS
~Z760fNU'XPZ960
Z
CHANNELAMPUFIERS
The
X..oVER
slide
switch
selects
the intermal
crossover
functions:
- The
input
signal
is
routed directiy
to
the
UNE
OUT
RCA
jacks. regardless
of
the
X-OVER setting simplifying daisy chaining
of
amplifiers.
HP: Selects
the
built
in HIGH PASS filter. variable from
40
Hz
to
2KHz.
FlAT:
Bypasses all crossovers
for
full frequency range operation.
LP:
Selects
the
built
in
LOW
PASS filer. variable from 30 Hz
to
150Hz.
Note
that
the
LOW
PASS
signal
is
MONO
- In
the
LP
position.
the
HIGH PASS filter acts
as
a subsonic filter.
When
the
LP
mode
is
selected. a 0
to
+ I 0 dB.
at
45
Hz.
BASS
EO
is
also
switched
in.
The REMOTE
jack
enables dash
mount
level control
of
the
LOW
PASS
signal.
~4Z60
4
CHANNEL
AMPLIFIERS
The AMPLIFIER CH
I/ZCH
X-OVER slide switch selects
the
input
signal
for
channel pair
1&
2:
HP: Selects
the
built
in HIGH PASS filter. variabe from 40 Hz
to
2KHz.
·
FULL:
Bypasses
all crossovers
for
full frequency range operation.
·
LP:
Selects
the
built
in
LOW
PASS filter. variabe from 30 Hz
to
150Hz.
Note
that
the
LOW
PASS
signal
is
MONO.
-In
the
LP
position.
the
HIGH PASS filter acts
as
a subsonic filter.
-
When
the
LP
mode
is
selected. a 0
to
+ I 0 dB.
at
45 Hz. BASS
EO
is
also
switched
in.
-
The AMPLIFIER CH
3/CH
4 X-OVER slide switch selects
the
input
signal
for
channel pair 3&4
HP: Selects
the
built
in
HIGH PASS fiter. variable from 40 Hz
to
2KHz.
·
FULL:
Bypasses
all crossovers
for
full frequency range operation.
·
LP:
Selects
the
built
in
LOW
PASS filter. variabe from
30
Hz to 150Hz.
Note
that
the
LOW
PASS
signal
is
MONO.
-In
the
LP
position.
the
HIGH PASS filter acts
as
a subsonic filter.
-
When
the
LP
mode
is
selected. a 0
to
+ I 0 dB.
at
45 Hz. BASS
EO
is
also
switched
in.
-Full range signal from channels I I 2 inputs are routed
to
the
Une
OUT
RCA
jacks. regardless
of
the
setting
of
the
X-OVER switches.
-The
REMOTE
jack
enables dash
mount
level control
of
the
LOW
PASS
Signal.
CH3/40nly.
FEATURES
Bass
Boost
Circuit
Variable
low
Pass
Crossover
Anti-Thump Turn-On
Tri-Mode Configurable
Soft Turn
On/Off
RCA
Une
Input
Blue
light
Illuminated
lanzar
Logo
Power Protection
LED
Indicators
Advanced Protection Circuitry
Bass
Boost
Remote Control
THD:
<0.05%
SIN Ratio: >95dB
Frequency Response: 10Hz-40KHz
MAXP2760/MAXP2960
2
CHANNEL
AMPLIFIER
APPLICATIONS
FULL
RANGE
STEREO
This
;s
the
most
basic
application
for
the
MAX
PRO
Series
2
channel
amplifiers.
1.
Interconnect
cable
checklist:
Connect
the
UNE
INPUTS
to
the
Radio/CD
with
good
quality
RCA cables.
Z.
Crossover
Switch:
The
X-OVER
switch
must
be
in
the
FlAT
position.
3.
Crossover
frequency
control
checklist:
N/
A
for
full
range
operation.
4.Line level:
Refer
to
the
section "Setting
up
systems
after
installation
for
best
performance-
S.
Bass
Remote:
Plug
in
the
Bass
Remote
to
the
amplifier
-REMOTE-jack.
NOTE:
Minmum
tinalloudspeaker
impedances:
4 & Z
Ohms
stereo
mode
or
4-Ohms
mono
mode
This
amplifier
will
not
do
I
Ohm
stereo
or
Zli
Ohm
mono
operation.
FULL
RANGE
MONO
This application illustrate
the
basic
mono
bridging
method
fat
alllanzar
amplifiers.
Interconnect
cable
checklist:
A
MONO
signal
source
is
required.
such
as
would
be
available
from
the
mono
sub
bass
output
of
an
active
crossover,
whether
stand
alone.
or
built
into
a
head
unit
or
equalizer.
Important:
Do
not
be
tempted
to
connect
the
hot,
or positive outputs. from any source
together
to
obtain
a
mono
signal, as this CQuid
very
well
damage
the
output
stage
of
that
source.
It
is
necessary
to
feed
the
SAME signal
to
both
left
and
right
inputs
via a Y-adapter RCA cable.
Connect
the
mono
speaker positive
terminal
to
the
LEFT +,
and
its
negative
terminal
to
RIGHT-.
Switch
setting
checklist:
-The
AMPUFIER
X-OVER
switch
must
be
in
the
FUU
position.
Crossover
frequency
control
setting
checklist:
N/
A
for
full
range
operation.
np:
If
you
are
using
the
mono
sub
bass
output
of
an
active crossover,
there
isnothing
wrong
with
switching
in
the
low
pass
filter
in
these amplifiers
for
a steeper
low
pass rolloff.
Minimum
fin
••
loudspeaker
impedance:
-4
ohm
mono.
Q
FUIl.R.\NGE
STEREO
UNE
INPUT
VIA.
Y-I!.DAPTER
FROM
MONO
SOURC
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ro
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BAITER'Y
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FUSE
REMOTE
TIJRN-ON
CHASSIS
GROUND
TO
FUllAANGE
ONOSPEAKER
M
BA
TTER'Y
+ I 2V
VIA
FUSE
OTE
TIJRN-ON
SIS
GROUND
REM
CHAS
MAXP4260
4
CHANNEL
AMPLIFIER
APPLICATIONS
4
CHANNEL
FULL
RANGE
SYS
TEM
Here
we
show
how
to
use
the
4 channel amplifiers
as
straightforward discrete 4 channel full range units.
Interconnect
c.ble
checldlst:
- Connect
the
four
inputs
of
the
amplifier to a Radio/CD
FUIl..RANGE co
with
quality
RCA
cables,
STERfOUNE '"
SWItch
.enlng
checklist:
-ljZCH
X'()VER:
FULL
-3/4CH
X'()VER:
FULL
Crossover
frequency
control
checklist:
Channel.
I/Z:
Channel.
3/4:
-HIGH PASS:
NfA
-HIGH PASS:
NfA
-LOW
PASS:
NfA
-LOW
PASS:
NfA
Level
control
checklist:
- Refer
to
the
section "setting
up
systems after installation for
best
performance"
Minimum
flnalloud
.......
ker
Impedance.:
..
Z
ohm
per
ch.nnel.
Z
or
3 CHANNEL FULL RANGE SYSTEM
Here
we
show
how
to
use
the
4 channel amplifiers
as
full range
2 or 3 channel units
by
taking advantage
of
the
mono
bridging
capability
of
alllanzar
MAX
PRO
series amplifiers.
The
follwing
example shows
how
to
create a 3 channel system
INPUTS
~
by
mono
bridging
channel pair
3/4.
In
order
to
create a 2 channel
system. simply
follow
the example
to
also
mono
bridge channel pair 1f2,
Interconnect
cable
checklist:
- Connect
the
inputs
of
channel pair
1/2
to
a suitable stereo source,
e.g. a head
unit
with
good
quality
RCA
cables.
-A
MONO
signal source
is
required
to
bridge channel pair3/4, such
as
would
be available from
the
mono
sub
bass
output
of
an
active
crossover,
whether
standalone,
or
built
into
a head
unit
or
equalizer.
Important:
Do
not
be
tempted
to
connect
the
hot.
or
positive
outputs, from
any
source
together
to
obtain
a
mono
signal,
as
this
could very well damage
the
outout
stage
of
that
source,
-
It
is
necessary
to
feed the
SAME
signal
to
both
lett and
right
inputs
via a Y-adapter
RCA
cable.
-
Connect
the
mono
speaker positive terminal
to
the
RIGHT +,
and
its negative terminal
to
LEFT
-
as
shown.
SWItch
.enlng
checklist:
-I/ZCH
X'()VER:
FULL
-3/4CH
X'()VER:
FULL
Cros.over
frequency
control
checkli.t:
chennel.
I/Z:
channel.
3/4:
- HIGH PASS:
NfA
_
HIGH
PASS:
NfA
-
LOW
PASS:
NfA
_
LOW
PASS:
NfA
-
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STEREO
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or
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u
=-r
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TIP:
If
you
are using
the
mono
sub bass
output
of
an
active crossover,
there
is
nothing
wrong
with
switching
in
the
low
pass filter
in
these amplifiers
for
a steeper
low
pass rolloff.
Level
control
checkli.t:
- Refer
to
the
section "Setting
up
systems after installation
for
best performance"
Minmum
final
loudspeaker
impedances:
-2
ohm
per
channel
in
stereo
mode.
-4
ohm
mono
bridged.
STEREO
!tj
FULL
AANGE
OR
HIGHS
SPENCERS
ffi
STEREO
FUll.
RANGE
+ ORHIGHS
SPEAKERS
TO
Bll.TTERY+1ZV
VIA
FUSE
REMOTE
TURN-ON
CHASSIS
GROUND
MAXP4260
4
CHANNEL
AMPLIFIER
APPLICATIONS
2
way
active,
or
b ....
mpllfted
system
with
mono
bass
This application shows
how
easily a 2 way active system can
be
implemented
using a
MAX
PRO
series 4 channel amplifier. Channels
I
and
2 will
be
used
for
highs,
and
channels 3
and
4
for
mono
bass.
Interconnect
cable
checklist:
-
We
need
to
feed
the
same signal
to
both
sets
of
channels, so
must
use 2 Y-adapters,
one
to
feed
the
LEFT
signal
to
channels
I
and
3,
and
the
right
signal
to
channels
2and
4,
as
shown.
Mono
bass
woofer
wiring
- Connect
the
mono
speaker positive terminal
to
the
RIGHT +,
and
its
negaitive terminal
to
LEFT
-.
Switch
setting
checklist:
1/2CH
X-oVER:
HP
3/4CH
X-oVER:
lP
Crossover
frequency
control
checklist:
channels
1/2
·HIGH PASS:
100
Hz
-LOW
PASS:
NfA
Channels
3/4:
HIGH PASS
(subsonic!:
20
Hz
Low
PASS:
100
Hz
Please
note
that
these frequency points only. Refer
to
the
loudspeaker manufacturer specifications
and
the
section
"setting
up
system
after
installation
for
best performance-
2
way
active,
or
bl-ampllfted
system
with
mono
bass,
and
faded
highsj
10_
Here
we
present a variation
of
the
previous system. Since
this
is
a 2
way
system,
wecan
use
the
front
outputs
from
a head
unit
to
drive
the
highs,
and
the
rear
output
to
drive
the
bass
This
method
allows
the
listener
to
easily adjust
the
relative levels
of
bass
to
highs,
with
the
front
to
rear
fade
on
the
head unit. Channels 1
anf
2
will
be
used
for
highs,
and
channels 3
and
4
for
mono
bass.
interconnect
cable
checklist:
- Use
good
quality
RCA
leads
to
connect
the
inputs
of
the
amplifier
to
the
source
as
shown.
-
Follow
the
instructions
as
per
the
previous system
for
switch
and
crossover settings.
Level
control
checklist:
Refer
to
the
section "setting
up
systems
after
in
stall
ation
for
best performance"
Mlnmum
ftnalloudspeaker
Impedances:
·2
ohm
per
channel
in
stero
mode
·4
ohm
mono
bridged.
LEFT
TO
Cfi..\NNELS
I
AND
3
FU1J.RANGE
STEREOUNE
INPUTS
-
STEREO
~
FULLMNGE
OR
HIGHS
+
SPEAKERS
!O
STEREO
FUURANGE
+
OR
HIGHS
SPENCERS
~
MONO
f{tI
OR
SUB
s.\SS
SPENCERS
TO
M.
TTEIn'
+
12V
VIA
FUSE
REMOTE
TURN-ON
CH.\SSIS
GROUND
rn
STEREO
FUll.
RANGE
+
OR
HIGHS
SPENCERS
~STEREO
~FUURANGE
OR
HIGHS
r1\
SPENCERS
!iJ
MONO
OR
SUB
MSS
SPENCERS
MAXP42604
CHANNEL
AMPLIFIER
APPLICATIONS
Front/ear
high
pass,
using
a Z
channel
amplifier
for
mono
sub
bass
The
combination
of
a 2
and
a 4 channel amplifier, utilizing
their
built
in crossovers. makes
it
a snap
to
put
together a full system
with
front
and
rear highs.
with
mono
sub
bass.
Interconnect cable checklist:
- Using
good
quality
RCA
cables. feed
the
front
and
rear outputs
of
a head
unit
to
the
inputs
of
the
4 channel amplifier
as
shown.
-Also connect
the
LINE
OUT
of
the
4 channel amplifier
to
the
LINE
INPUT
of
the 2 channel amplifier
as
shown.
Mono
bass
woofer wiring:
Connect
the
mono
speaker positive terminal
to
the
LEFT
+,
and
its negative terminal
to
RIGHT
-.
Switch
.etting
checklist.
4
channel
high.
amplifier:
1/2CH
X'()VER:
HP
3/4CH
X-OVER:
HP
Z
channel
bilss
amplifier:
X'()VER
switch:
LP
Crossover
frequency
control
checklist:
4
channel
high.
amplifier:
Channel.
1/2
HIGH PASS:
100Hz
LOW
PASS:
NfA
Channel.
3/4
HIGH PASS: 100Hz
LOW
PASS:
NjA
2
channel
bas.
amplifier:
HIGH PASS
ISubsonlc
filter,:
10Hz
to
40Hz
Please
note
that
these frequency points are suggestions only.
Refer
to
the
loudspeaker manufacturer specifications and
the
section 'Setting
up
systems after installation
for
best
performance"
Level
control
checklist:
- Refter
to
the
section "Setting
up
systems after installation
for best performance-
Minimun
finalloud.peaker
impedances:
• Z
ohm
per
channel
in
.tereo
mode.
·4
ohm
mono
bridged.
-
FRONT
INPlm
REJlR
INPlm
""'0
INlERCONNECT
RCII,"""
(
:g
FUll
RIoNGE
SPEAKERS
TOBATTERY+I'lV
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TURN-ON
FULlRloNGE
MONO
SPEAKER
TOBATTERY+I'lV
VIA
FUSE
SETTING
UP
SYSTEMS AFTER INSTALLATION FOR BEST PERFORMANCE
General:
At
this
point you are ready to
get
more
specific
on the settings for your amplifier.
HIgh Pass:
-When
in
Hi
Pass
operation,
this
setting
acts
as
a
low
frequency cut off for your
system
reproduction. The point that you set it
at
cuts
off any frequencies from reproduction
beyond this point. The
12
o'clock position
is
a great starting point.
EXAMPLE:
If
you
adjust
the
High
Pass
to
100Hz.
the
amplifier
will
not
play trequencies
below
100Hz
but
will
play trequencies
trom
100Hz to
the
chosen
Low
Pass
trequency.
-When
in
Low
Pass/Bandpass
operation, this setting
acts
as
a
low
frequency cut off for your
system
reproduction aka
Subsonic
Filter. The point that you set it
at
cuts
off any
trequencies
trom
reproduction beyond this point. The
12
o'clock position
is
a great starting point.
EXAMPLE:
If
you
adjust
the
High
Pass
to
25Hz.
the
amplifier
will
not
play
trequencies
below
25Hz
but
will
play frequencies from 25Hz
to
the
chosen
Low
Pass
frequency.
-When
in
Flat/Full operation, the High
Pass
crossover
is
bypassed.
BassEQ:
This
setting
is
a
fIXed
bass
boost
at
45Hz that
is
variable from
0-1
OdB.
This
feature provides impact to your
bass,
but if
not
adjusted correctly. it can
be
over used and cause
damage to your
speakers
and amplifiers. It
is
best to slowly turn
this
setting clockwise until the desired punch
is
felt. it
is
not
recommended to exceed the 12 o'clock position
unless listening
at
a
low
volume
or
a
low
recording quali1y
as
this can result in
high
distortion
and
possibly clipping.
Low
Pass:
The Low
Pass
control
acts
as
a ceiling and doesn't allow frequencies to the right
of
the desired setting to be reproduced. Turning the potentiometer all the
way
to the right
is
a great starting point.
EXAMPLE:
If
you
adjust
the
Low
Pass
to
120Hz.
the
amplifier
will
not
play fTequencies above 120Hz
but
will
play frequencies from 120Hz
to
the
chosen Hi
Pass
or
Subsonic trequency.
-When
in
Hi
Pass
operation,
this
setting
is
bypassed.
Level Control Setup:
Ensuse
that the level
is
turned completely to the left prior to turning the syetem on. Next you should insert a CD or
cassette
that you are familiar with to
use
as
a reference,
and
turn
the
head
unit
volume
control
to
about
80%
of
its full setting. The system sound level
will
of
course be very low.
and
the
following
procedures
will
help
you
to match
the
amplifier
input
sensitivities properly to
the
head
unit
output
signal level.
It
is
important to match the amplifier
LEVEL
input sensitMty to the Radio/CD output
sensitivity.
This
can be located
in
the Radio/CD manual.
If
the
Radio/CD
output
sensitivi1y
is
2 volts.
then
adjust
the
amplifier LEVEL
input
to
2 volts.
If
you
are
not
sure
what
the
Radio
output
sensitivi1y
is.
follow
these general guide lines:
Turn the level control
up
SlOWly,
till you hear distortion, then back off a
few
degrrees on the control. If
at
any point your amplifier
goes
into protection, you will need to turn
the
level to the left a bit and then
try
again. If you reach a point where the output
does
not increase, stop turning the level control to the righe
as
the amplifier/speaker
combo
has
reached
its
maxx output
in
this
application.
Z
or:l
way
active
systems
lalll:
Always start
with
the
bass.
or
low
frequency amplifier
as
a reference.
by
turning
its control
up
to
the
point
where
distortion
is
audible.
and
back
it
olf
some.
Now
adjust
the
level control
for
the
highs
or
tweeter channels in a 2
way
active system. to balance
the
highs to lows.
In a 3
way
active
system,
match the midrange level to the
bass,
and then the highs to the midrange and
bass.
It may
be
necessary to perform a
few
iterations
of
the midrange
and highs
level control settings to achieve a satisfactory sound balance.
Sit bIIck
and
enjoy
the
music!
-
Lanzar
MAX
PRO
SERIES
AMPLIFIER
FEATURES
MODEL
MAXP2760
MAXP2960
MAXP4260
Out
Power
Rating
RMSat40hms
500Wx2 750Wx2 250Wx4
MAX
at
4 Ohms 1000Wx2 1500Wx2 500Wx4
MAX
at
4 Ohms Bridced
1200Wxl
3000Wxl
1000Wx2
RMSat 2 Ohms
BOOWx2
1200Wx2 400Wx4
Miscellaneous
Spec
Soft Start Sound
Yes Yes Yes
Frequency Response -3dB
10Hz-40KHz
10Hz-40KHz 10Hz-40KHz
Dampinc
Factor >200 >200 >200
SIN
Ratio(A-Weight)
> 95dB
> 95dB > 95dB
THD
& Noise
<0.05% <0.05% <0.05%
Channel Separation
at
I
KHz
>70dB >70dB >70dB
Varible
Input
Level Control 0.2V-6.0V 0.2V-6.0V 0.2V-6.0V
Input
Impedance
20kQ
20kQ 20kQ
Power and Diagnostic
LED
Power/Protect Power/Protect Power/Protect
Protection(DC,
Short, Thermal, Overload)
Yes Yes Yes
Power Supply. all
MOSFET
PWM
Yes
Yes Yes
MOSFET Outputs
Yes Yes Yes
Crossover
and
Swlthchlng
Input
Selector
Switch
Crossover SfW for I
+Z
channel
Hp/FULljLP-BP
Hp/FULljLP-BP Hp/FULljLP-BP
Variable Hi-pass / Subsonic Filter
40Hz- 2kHz 40Hz- 2kHz 40Hz- 2kHz
Variable Low-pass
(Mono
24dB)
30Hz- 150Hz 30Hz- 150Hz 30Hz- 150Hz
Bass
Boost
at
45Hz
0-
10dB
0-
10dB
0-
10dB
Crossover SfW for
3+4
channel
Variable Hi-pass
40Hz- 2kHz 40Hz- 2kHz 40Hz- 2kHz
Variable
Low-pass/
(Mono
24dB)
30Hz- 150Hz 30Hz- 150Hz 30Hz- 150Hz
Bass
Boost
at
45Hz
0-
10dB
0-
10dB
0-
10dB
UneOutput
Full Rance Full Rance Full Rance
Unbalanced
InputlRCAJackJ
Yes Yes Yes
Remote
Control
Yes Yes Yes
Power Terminal
4-GA 4-GA 4-GA
Speaker Terminal
8-GA 8-GA 8-GA
Fuse
Size
20Ax3 30Ax3 40Ax2
Dimensions
(W
x H x
L)
Inches
10.
I 6-x2.56-xl 3.86-
10.
16-x2.56-xl 5.83-
10.
16-x2.56-xl 2.8-
Note:
Features
subject
to
change
without
notice
-
TROUBLESHOOTING
Before
removing
your
amplifier,
refer
to
the
list
below
and
follow
the
suggested
procedures.
Always
test
the
speakers
and
their
wires
first.
AMPLIFIER
WILL
NOT
POWER
UP.
Check for
good
ground
connection.
Check
that
remote
DC
terminal has
at
least 13.8v
DC.
Check
that
there
is
battery
power
on
the
+terminal.
Check all
fuses.
Check
that
Protection
LED
is
not
lit
If
it
is
lit. shut
off
amplifier briefly and
then
repower it.
HIGH
HISS
OR
ENGINE
NOISE
(ALTERNATOR
WHINEI
IN
SPEAKERS.
Disconnect
all
RCA
inputs to the amplifierlsj-if hiss/noise disappea,,- then plug in the component
drMng
the amplifier and unplug
its
inputs.
If
hiss
/ noise
disappea,,-
go
on
until the faulty/noisy component
is
found.
It
is
best
to
set
the
amplifier's
input
level
as
insensitive
as
possible. The best
suQjective
SIN
ratio
is
obtainable
this
way.
Try
to drive
as
high a
signal
level
from
the head unit
as
possible.
PROTECTION
LED
COMES
ON
W
EN
THE
AMPLIFIER
IS
POWERED
UP.
Check for shorts
on
speaker leads.
Check that
the
volume control
on
th head unit
is
turne(j
down
low.
Remove speaker leads.
and
reset
the
a plifier.
If
the
Protection
LED still
comes
on.
then
the
amplifier
is
faulty.
AMPLIFIER(SI
GETS
VERY
HOT.
Check
that
the
minimum spe7
er
im edance
for
that
model
is
correct.
Check for speaker shorts.
Check
that there
is
good airftow a
r:
ound the
amplifier.
In
some
applications,
an
external
cooling
fan
may
be
required.
DISTORTED
SOUND
Check
that
the
Level controlls)
is
set to match
the
signal"level
of
t '
he
ad unlu
'-
Check that
all
crossover
Check for shorts
on
the
sP!'aker leads.
-
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Lanzar Car Audio MAXP 2960 Manuel utilisateur

Catégorie
Amplificateurs audio de voiture
Taper
Manuel utilisateur

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