USER’S MANUAL
AMPLIFIERS:AMPLIFIERS:
MAXP 2760/MAXP 2960/MAXP 4260
TABLE
OF
CONTENTS
Contents and introdction -- - - - ---- - - - - - - - --- - - - - --- - - - - --- - - - - - - - - --- - - - - --- - - Amplifier featuer descriptions - - --- - - - - --- - - - - --- - - - - - - - ---- - - - ---- - - - - --- - - - - -
MAXP2760/MAXP2960
MAXP4260
MAXP4260
MAXP4260
Setting
Max pro series amplifier specifications --- - - - - --- - - - - - - - ---- - - - ---- - - - - --- - - - - - - - -Troubleshooting -- - - - - ---- - - - ---- - - - - - - - --- - - - - --- - - - - --- - - - - - - - - --- - - - - --- - - -
channel amplifier applications-- - - - ---- - - - - - - - --- - - - - --- - - - - --- - - - - ---channel amplifier applications --------- - - - ---- - - - - - - - --- - - - - --- - - - - ---channel amplifier applications-- - - - - - - - --- - - - - --- - - - - --- - - - - - - - ---- - - - -
up
systems after installation for best performance - - - - ---- - - - - - - - ---- - - - ----
channel amplifier applications----- - - - - - - - --- - - - - --- - - - - ---
INTRODUCTION
Thank
product
The MAXP
This
less-efficient ciassA8 design.
reproduction
you
designed
mono
for
purchasing
and
PRO
series amplifier has been desigl"iled
subwoofer amplifer
in
the
mobile
the
Lanzar MAXP
engineered 0 give
is
the result
Tliie MAXP
enviro ment.
PRO
series amplifier.
you
many
of
adVanced
PRO
series amplifier reflects
years
using
high
Rest
assured
of
uncompromised
the
latest
speed switching technology that overcomes the
in
electronic
your
you
musical service.
true
appreciation
have purchased a
technology
_.
_.
_.
Page
Page
Page
Page
Page
Page
Page
Page
Page
for
1
2
3
4
5
6
7
8
9
available
powerful
quality
today
bass
This
amplifier
mid/high-frequency
This
is
due
filtered
out
is
designed
to
the noise intro'duced into the
of
the audio signal
for
10
information.
-frequency
information
only
and
it
is
not
capable
of
reproducing
any
-
AMPLIFIER
FEATUER
DESCRIPTIONS
~Z760fNU'XPZ960
The
X..oVER
- The
input
X-OVER setting simplifying daisy chaining
• HP: Selects
•
FlAT:
LP:
Selects
Note
that
- In
the
When
also
switched
The REMOTE
~4Z60
slide
switch
signal
is
routed directiy
the
built
in HIGH PASS filter. variable from
Bypasses all crossovers
the
built
in
LOW
the
LOW
PASS
LP
the
position.
LP
mode
in.
jack
enables dash
the
is
selected. a 0
Z
CHANNELAMPUFIERS
selects
the intermal
to
the
for
full frequency range operation.
PASS filer. variable from 30 Hz
signal
is
MONO
HIGH PASS filter acts
to
+ I 0 dB.
mount
level control
4
CHANNEL
crossover
UNE
OUT
of
amplifiers.
as
a subsonic filter.
at
45
AMPLIFIERS
functions:
RCA
jacks. regardless
40
Hz
to
Hz.
BASS
of
the
LOW
to
2KHz.
150Hz.
EO
PASS
is
of
signal.
the
The AMPLIFIER CH
for
channel pair 3&4
• HP: Selects
·
FULL:
·
LP:
Selects
Note
-In
the
When
-
switched
-Full range signal from channels I I 2 inputs are routed
jacks. regardless
-The
the
Bypasses
the
that
the
LP
position.
the
LP
in.
REMOTE
3/CH
built
in
all crossovers
built
in
LOW
LOW
PASS
the
HIGH PASS filter acts
mode
is
selected. a 0
of
the
setting
jack
enables dash
4 X-OVER slide switch selects
HIGH PASS fiter. variable from 40 Hz
for
full frequency range operation.
PASS filter. variabe from
signal
is
MONO.
as
a subsonic filter.
to
+ I 0 dB.
of
the
X-OVER switches.
mount
at
45 Hz. BASS
level control
CH3/40nly.
FEATURES
•
Bass
Boost
Circuit
• Variable
• Anti-Thump Turn-On
• Tri-Mode Configurable
•
Soft Turn
•
RCA
• Blue
• Power Protection
• Advanced Protection Circuitry
•
Bass
•
THD:
• SIN Ratio: >95dB
• Frequency Response: 10Hz-40KHz
low
On/Off
Une
Input
light
Illuminated
Boost
Remote Control
<0.05%
Pass
Crossover
lanzar
LED
Indicators
Logo
the
30
Hz to 150Hz.
to
the
of
the
LOW
input
to
2KHz.
EO
Une
signal
is
also
OUT
PASS
RCA
Signal.
The AMPLIFIER CH
channel pair
• HP: Selects
·
FULL:
·
LP:
Selects
Note
-In
the
When
-
switched
Bypasses
that
the
LP
position.
the
LP
in.
1&
2:
the
built
all crossovers
the
built
LOW
mode
-
I/ZCH
X-OVER slide switch selects
in HIGH PASS filter. variabe from 40 Hz
for
full frequency range operation.
in
LOW
PASS filter. variabe from 30 Hz
PASS
signal
is
MONO.
the
HIGH PASS filter acts
is
selected. a 0
to
+ I 0 dB.
as
a subsonic filter.
at
45 Hz. BASS
the
input
to
to
150Hz.
EO
signal
2KHz.
is
also
for
MAXP2760/MAXP2960
2
CHANNEL
AMPLIFIER
APPLICATIONS
FULL
This
Series
1.
Connect
good
Z.
The
3.
N/ A for
RANGE
;s
the
most
2
channel
Interconnect
the
UNE
quality
RCA cables.
Crossover
X-OVER
Crossover
full
Switch:
switch
frequency
range
STEREO
basic
application
amplifiers.
cable
INPUTS
must
operation.
4.Line level:
Refer
to
the
section "Setting
for
best
performance-
S.
Bass
Remote:
Plug
in
the
Bass
Remote
NOTE:
4 & Z
This
Ohm
FULL
This application illustrate
fat
Interconnect
A
available
crossover,
unit
connect
together
well
necessary
inputs
speaker positive
terminal
Switch
-The
position.
Crossover
N/ A for
np:
active crossover,
in
low
Minimum
-4
Minmum
Ohms
amplifier
mono
RANGE
alllanzar
MONO
from
or
equalizer.
signal
the
to
damage
to
via a Y-adapter RCA cable.
to
setting
AMPUFIER
tinalloudspeaker
stereo
mode
will
not
operation.
MONO
amplifiers.
cable
checklist:
source
the
mono
whether
stand
Important:
hot,
or positive outputs. from any source
obtain a mono
the
output
feed
the
SAME signal
terminal
RIGHT-.
checklist:
X-OVER
frequency
full
range
operation.
If
you
are
using
the
there
the
low
pass
filter
in
pass rolloff.
fin
••
loudspeaker
ohm
mono.
isnothing
these amplifiers
for
the
checklist:
to
the
Radio/CD
be
in
the
FlAT
control
to
the
do I Ohm
the
is
required.
sub
alone.
signal, as this CQuid
stage
to
control
mono
up
systems
amplifier
or
4-Ohms
basic
mono
bass
output
or
Do
not
of
that
to
Connect
the
LEFT +,
switch
must
setting
sub
wrong
impedance:
checklist:
stereo
such
built
both
bass
MAX
PRO
with
position.
after
installation
-REMOTE-jack.
impedances:
mono
mode
or
Zli
bridging
as
would
of
an
active
into a head
be
tempted
very
source.
It
is
left
and
the
mono
and
its
negative
be
in
the
checklist:
output
of
with
switching
for
a steeper
method
be
to
right
FUU
an
Q
FUIl.R.\NGE
STEREO
UNE
INPUT
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Y-I!.DAPTER
FROM
MONO
SOURC
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FUll.
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BAITER'Y
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CHASSIS
FUllAANGE
ONOSPEAKER
M
BA
TO
VIA
OTE
REM
SIS
CHAS
RANGE
SPEAKERS
ro
ro
+I2V
FUSE
TIJRN-ON
GROUND
TTER'Y
+ I 2V
FUSE
TIJRN-ON
GROUND
-
MAXP4260
4
CHANNEL
Here
we
show
straightforward discrete 4 channel full range units.
Interconnect
- Connect
with
quality
SWItch
-ljZCH
Crossover
Channel.
-HIGH PASS:
-LOW
Level
- Refer
best
Minimum
.. Z ohm
Z
Here
2 or 3 channel units
capability
The
by
system. simply
Interconnect
- Connect
e.g. a head
-A
as
crossover,
Important:
outputs, from
could very well damage
-
via a Y-adapter
-
its negative terminal
SWItch
-I/ZCH
Cros.over
chennel.
- HIGH PASS:
-
.enlng
X'()VER:
PASS:
control
to
the
performance"
per
or
3 CHANNEL FULL RANGE SYSTEM
we
show
follwing
mono
bridging
MONO
would
be available from
It
is
necessary
Connect
.enlng
X'()VER:
LOW
PASS:
FULL
how
c.ble
the
four
inputs
RCA
cables,
checklist:
FULL
frequency
I/Z:
NfA
NfA
checklist:
section "setting
flnalloud
ch.nnel.
how
of
alllanzar
example shows
channel pair
follow
cable
the
inputs
unit
with
signal source
whether
the
I/Z:
standalone,
Do
not
any
source
to
feed the
RCA
mono
checklist:
FULL
frequency
NfA
NfA
4
CHANNEL
RANGE
to
use
the
checldlst:
of
the
control
.......
ker
to
use
the
by
taking advantage
MAX
PRO
the example
checklist:
of
channel pair
good
quality
is
required
the
be
tempted
together
the
outout
SAME
cable.
speaker positive terminal
to
LEFT -as
control
SYS
TEM
4 channel amplifiers
amplifier to a Radio/CD
-3/4CH
up
how
X'()VER:
checklist:
Channel.
-HIGH PASS:
-LOW
PASS:
systems after installation for
Impedance.:
4 channel amplifiers
of
series amplifiers.
to
create a 3 channel system
3/4.
In
order
to
also
mono
1/2
to
RCA
cables.
to
bridge channel pair3/4, such
mono
sub
bass
or
built
into
to
connect
to
obtain a mono
stage
of
signal
to
both
shown.
-3/4CH
checkli.t:
X'()VER:
channel.
_
HIGH
_
LOW
3/4:
the
mono
to
create a 2 channel
bridge channel pair 1f2,
a suitable stereo source,
output
a head
the
hot.
that
source,
lett and
to
the
3/4:
PASS:
PASS:
AMPLIFIER
as
FULL
NfA
NfA
as
full range
bridging
of
an
active
unit
or
equalizer.
or
positive
signal,
as
this
right
inputs
RIGHT +,
FULL
NfA
NfA
and
FUIl..RANGE co
STERfOUNE '"
INPUTS
1
STEREO
I MONO
FUll.
RANGE
UNE
INPI./n
APPLICATIONS
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TIP:
If
with
switching
Level
- Refer
Minmum
-2
ohm
you
are using
control
to
the
section "Setting
final
per
channel
=-r
in
the
checkli.t:
loudspeaker
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RANGE
SPEMERS
tO
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to
to
to
TOBATTERY+I2V
VIII
FUSE
REMOTE
TURN-ON
CHI\S5IS
GROUND
=
the
mono
low
in
sub bass
pass filter
up
systems after installation
impedances:
stereo
output
in
these amplifiers
mode.
-4
of
an
active crossover,
for
for
ohm
mono
there
a steeper
low
pass rolloff.
best performance"
bridged.
is
nothing
wrong
STEREO
FULL
!tj
•
SPENCERS
STEREO
FUll.
ffi
+ ORHIGHS
SPEAKERS
TO
Bll.TTERY+1ZV
VIA
REMOTE
CHASSIS
AANGE
OR
HIGHS
RANGE
FUSE
TURN-ON
GROUND
-
MAXP4260
2
way
active,
This application shows
implemented
I
and
2 will
Interconnect
-
We
need
must
use 2 Y-adapters,
I
and
3,
and
Mono
- Connect
and
bass
its
negaitive terminal
Switch
• 1/2CH
•
3/4CH
Crossover
channels
·HIGH PASS:
-LOW
PASS:
Channels
• HIGH PASS
•
Low
PASS:
Please
note
loudspeaker manufacturer specifications
"setting
up
or
using a
be
used
cable
to
feed
the
the
right
woofer
the
mono
setting
checklist:
X-oVER:
X-oVER:
frequency
1/2
100
NfA
3/4:
(subsonic!:
100
that
these frequency points only. Refer
system
after
4
CHANNEL
b ....
MAX
for
how
highs,
mpllfted
PRO
system
easily a 2 way active system can
series 4 channel amplifier. Channels
and
channels 3
checklist:
same signal
one
signal
to
feed
to
to
both
the
channels
wiring
speaker positive terminal
to
LEFT
-.
HP
lP
control
checklist:
Hz
20
Hz
Hz
installation
for
with
mono
and 4 for
sets
of
channels, so
LEFT
signal
to
channels
2and
4,
as
shown.
to
the
RIGHT +,
to
the
and
the
section
best performance-
AMPLIFIER
bass
be
mono
bass.
LEFT
TO
Cfi..\NNELS
I
AND
3
APPLICATIONS
Level
control
Refer
to
the
Mlnmum
·2
ohm
·4
ohm
checklist:
section "setting
ftnalloudspeaker
per
channel
mono
in
bridged.
up
systems
stero
after
in
stall
Impedances:
mode
ation
for
best performance"
~
+
+
!O
~
f{tI
TO
M.
TTEIn' + 12V
VIA
REMOTE
CH.\SSIS
OR
STEREO
FULLMNGE
OR
HIGHS
SPEAKERS
STEREO
FUURANGE
OR
HIGHS
SPENCERS
MONO
SUB
s.\SS
SPENCERS
FUSE
TURN-ON
GROUND
2
way
active,
and
faded
highsj
Here
we
present a variation
is
a 2
this
a head
the
the
fade
highs,
way
unit
to
bass
This
method
relative levels
on
the
head unit. Channels 1
and
channels 3
interconnect
- Use
good
quality
amplifier
-
Follow
switch
to
the
the
instructions
and
crossover settings.
or
bl-ampllfted
system,
drive
the
of
bass
cable
RCA
source
10_
of
wecan
use
highs,
allows
the
to
highs,
and 4 for
checklist:
leads
to
as
shown.
as
per
system
the
previous system. Since
the
front
and
the
listener
with
anf 2 will
mono
connect
the
previous system
outputs
rear
output
to
easily adjust
the
front
be
bass.
the
inputs
with
to
used
mono
from
to
drive
rear
for
of
the
for
bass,
FU1J.RANGE
STEREOUNE
INPUTS
-
STEREO
FUll.
RANGE
+
OR
HIGHS
rn
SPENCERS
~STEREO
~FUURANGE
OR
HIGHS
r1\
SPENCERS
!iJ
MONO
OR
SUB
MSS
SPENCERS
MAXP42604
CHANNEL
AMPLIFIER
APPLICATIONS
Front/ear
for
mono
The
combination
built
in crossovers. makes
with
front
high
sub
and
pass,
bass
of
a 2
and
rear highs.
using
a 4 channel amplifier, utilizing
it
a snap
with
Interconnect cable checklist:
- Using
-Also connect
Switch
4
•
•
Z
• X'()VER
Crossover
• 4
Channel.
• HIGH PASS:
LOW
2
• HIGH PASS
Level
- Refter
for best performance-
• Z
·4
good
quality
of
a head
unit
to
the
the
LINE
LINE
INPUT
of
the 2 channel amplifier
Mono
bass
woofer wiring:
Connect
and
1/2CH
3/4CH
the
mono
its negative terminal
.etting
channel
checklist.
high.
X'()VER:
X-OVER:
channel
bilss
amplifier:
switch:
speaker positive terminal
amplifier:
HP
HP
LP
frequency
channel
high.
amplifier:
1/2
100Hz
PASS:
NfA
Channel.
3/4
• HIGH PASS: 100Hz
LOW
PASS:
NjA
channel
bas.
amplifier:
ISubsonlc
Please
note
that
these frequency points are suggestions only.
Refer
to
the
loudspeaker manufacturer specifications and
the
section 'Setting
performance"
control
to
the
Minimun
finalloud.peaker
ohm
per
ohm
mono
up
checklist:
section "Setting
channel
bridged.
RCA
cables. feed
inputs
of
the
OUT
of
to
RIGHT
control
filter,:
systems after installation
up
in
.tereo
a Z
channel
to
put
together a full system
mono
sub
bass.
the
front
and
rear outputs
4 channel amplifier
the
4 channel amplifier
as
shown.
to
the
LEFT
-.
checklist:
10Hz
to
40Hz
for
best
systems after installation
impedances:
mode.
amplifier
their
as
shown.
to
the
+,
FRONT
INPlm
REJlR
INPlm
""'0
INlERCONNECT
RCII,"""
(
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TOBATTERY+I'lV
VIA
-REMIOTE
FULlRloNGE
MONO
TOBATTERY+I'lV
VIA
FUll
RIoNGE
SPEAKERS
FUSE
TURN-ON
SPEAKER
FUSE
-
SETTING
UP
General:
At
this
point you are ready to
HIgh Pass:
-When
in
Hi
Pass
operation,
beyond this point. The
will
play trequencies
-When
in
Low
Pass/Bandpass
trequencies
trequencies
-When
trom
below
in
Flat/Full operation, the High
12
o'clock position
trom
100Hz to
reproduction beyond this point. The
25Hz
but
BassEQ:
This
setting
is a fIXed
damage to your
unless listening
Low
Pass:
The Low
is
chosen Hi
-When
Pass
a great starting point.
Pass
in
Hi
Pass
bass
boost
speakers
at a low
control
or
Subsonic trequency.
operation,
and amplifiers. It
volume
acts
as
EXAMPLE:
Level Control Setup:
Ensuse
that the level
and
turn
the
head
the
amplifier
It
is
important to match the amplifier
If
the
input
Radio/CD
is
turned completely to the left prior to turning the syetem on. Next you should insert a CD or
unit
volume
sensitivities properly to
output
sensitivi1y
SYSTEMS AFTER INSTALLATION FOR BEST PERFORMANCE
get
more
specific
this
setting
acts
the
operation, this setting
will
play frequencies from 25Hz
Pass
at
45Hz that
or a low
a ceiling and doesn't allow frequencies to the right
If
you
this
setting
is
control
is
2 volts.
to
LEVEL
on the settings for your amplifier.
as a low
is
a great starting point.
chosen
crossover
is
best to slowly turn
recording quali1y
adjust
bypassed.
about
the
input sensitMty to the Radio/CD output
then
frequency cut off for your
Low
Pass
trequency.
acts
as a low
12
o'clock position
to
is
bypassed.
is
variable from
the
Low
80%
head
unit
adjust
0-1
as
this can result in
Pass
to
of
its full setting. The system sound level
output
the
amplifier LEVEL
EXAMPLE:
frequency cut off for your
the
chosen
OdB.
This
this
setting clockwise until the desired punch
120Hz.
the
signal level.
system
reproduction. The point that you set it
If
you
adjust
the
High
Pass
system
reproduction aka
is
a great starting point.
Low
Pass
frequency.
feature provides impact to your
high
distortion
of
the desired setting to be reproduced. Turning the potentiometer all the
amplifier
input
will
sensitivity.
to
2 volts.
not
EXAMPLE:
and
possibly clipping.
play fTequencies above 120Hz
will
of
course be very low.
This
can be located
to
bass,
100Hz.
If
you
but if
is
felt. it
at
cuts
the
amplifier
Subsonic
adjust
not
is
not
cassette
in
the Radio/CD manual.
will
Filter. The point that you set it
the
High
Pass
adjusted correctly. it can
recommended to exceed the 12 o'clock position
but
will
that you are familiar with to
and
the
following
off any frequencies from reproduction
not
play trequencies
to
25Hz.
the
play frequencies from 120Hz
procedures
below
100Hz
at
cuts
amplifier
be
over used and cause
use
will
will
way
to the right
as
a reference,
help
you
to
not
but
off any
play
the
to match
If
you
are
not
sure
what
the
Turn the level control
the
level to the left a bit and then
combo
Always start
and highs
has
Z
or:l
way
level control
In a 3
way
active
level control settings to achieve a satisfactory sound balance.
reached
active
with
for
its
the
the
highs
system,
up
maxx output
systems
bass.
Radio
output
sensitivi1y
SlOWly,
till you hear distortion, then back off a
try
again. If you reach a point where the output
in
this
application.
is.
follow
lalll:
or
low
frequency amplifier
or
tweeter channels in a 2
match the midrange level to the
as
way
these general guide lines:
few
degrrees on the control. If
does
not increase, stop turning the level control to the righe
a reference.
active system. to balance
bass,
by
turning
and then the highs to the midrange and
its control
the
highs to lows.
Sit bIIck
up
to
the
and
at
any point your amplifier
point
where
distortion
bass.
It may
be
enjoy
the
music!
goes
into protection, you will need to turn
is
audible.
necessary to perform a
and
back
as
the amplifier/speaker
it
olf
some.
Now
few
iterations
of
-
adjust
the
the midrange
Lanzar
MAX
PRO
SERIES
AMPLIFIER
FEATURES
MODEL
Out
Power
RMSat40hms
MAX
at
MAX
at
RMSat 2 Ohms
Miscellaneous
Soft Start Sound
Frequency Response -3dB
Dampinc
Ratio(A-Weight)
SIN
& Noise
THD
Channel Separation
Varible
Input
Power and Diagnostic
Protection(DC,
Power Supply. all
MOSFET Outputs
Crossover
Input
Crossover SfW for I
Variable Hi-pass / Subsonic Filter
Variable Low-pass
Bass
Boost
Crossover SfW for
Variable Hi-pass
Variable
Bass
Boost
UneOutput
Unbalanced
Remote
Power Terminal
Speaker Terminal
Fuse
Size
Dimensions
Note:
Rating
4 Ohms 1000Wx2 1500Wx2 500Wx4
4 Ohms Bridced
Spec
Factor >200 >200 >200
at I KHz
Input
Level Control 0.2V-6.0V 0.2V-6.0V 0.2V-6.0V
Impedance
LED
Short, Thermal, Overload)
MOSFET
and
Swlthchlng
Selector
Low-pass/
Control
Features
Switch
+Z
(Mono
at
45Hz
3+4
(Mono
at
45Hz
InputlRCAJackJ
(W
x H x
L)
Inches
subject
PWM
channel
24dB)
channel
24dB)
to
change
MAXP2760
500Wx2 750Wx2 250Wx4
1200Wxl
BOOWx2
10Hz-40KHz
> 95dB
<0.05% <0.05% <0.05%
>70dB >70dB >70dB
Power/Protect Power/Protect Power/Protect
Hp/FULljLP-BP
40Hz- 2kHz 40Hz- 2kHz 40Hz- 2kHz
30Hz- 150Hz 30Hz- 150Hz 30Hz- 150Hz
0-
40Hz- 2kHz 40Hz- 2kHz 40Hz- 2kHz
30Hz- 150Hz 30Hz- 150Hz 30Hz- 150Hz
0-
Full Rance Full Rance Full Rance
20Ax3 30Ax3 40Ax2
10.
I 6-x2.56-xl 3.86-
without
MAXP2960
3000Wxl
1200Wx2 400Wx4
Yes Yes Yes
10Hz-40KHz 10Hz-40KHz
> 95dB > 95dB
20kQ
Yes Yes Yes
Yes
Yes Yes Yes
10dB
10dB
Yes Yes Yes
Yes Yes Yes
4-GA 4-GA 4-GA
8-GA 8-GA 8-GA
10.
20kQ 20kQ
Yes Yes
Hp/FULljLP-BP Hp/FULljLP-BP
0-
10dB
0-
10dB
16-x2.56-xl 5.83-
MAXP4260
1000Wx2
0-
10dB
0-
10dB
10.
16-x2.56-xl 2.8-
notice
-
TROUBLESHOOTING
Before
removing
your
AMPLIFIER
Check for
Check
Check
Check all
Check
HIGH
Disconnect
disappea,,-
It
from
is
good
that
remote
that
there
fuses.
that
Protection
HISS
all
RCA
go
on
best
to
set
the head unit
PROTECTION
Check for shorts
Check that
Remove speaker leads.
the
volume control
AMPLIFIER(SI
Check
that
the
minimum spe7
Check for speaker shorts.
Check
that there
amplifier,
WILL
ground
DC
terminal has
is
battery
LED
OR
ENGINE
inputs to the amplifierlsj-if hiss/noise disappea,,-then plug in the component
until the faulty/noisy component
the
amplifier's
as
possible.
LED
COMES
on
speaker leads.
and
GETS
is
good airftow ar:ound the
refer
NOT
connection.
power
on
is
not
lit
input
ON
on
th head unit
reset
the
VERY
HOT.
er
im edance
to
the
list
POWER
at
least 13.8v
the
+terminal.
If
it
is
lit. shut
NOISE
level
as
insensitive
W
a plifier.
for
amplifier.
below
and
UP.
DC.
off
amplifier briefly and
(ALTERNATOR
is
found.
as
possible. The best
EN
THE
AMPLIFIER
is
turne(j
down
If
the
Protection
that
model
is
In
some
follow
the
low.
LED still
correct.
applications,
suggested
then
repower it.
WHINEI
suQjective
IS
POWERED
comes
an
external
procedures.
IN
drMng
SIN
ratio
is
UP.
on.
then
the
cooling
fan
Always
test
the
speakers
SPEAKERS.
the amplifier and unplug
obtainable
amplifier
may
this
is
be
required.
way.
faulty.
Try
its
to drive
and
inputs.
as
high a
their
If
hiss
wires
/ noise
signal
first.
level
DISTORTED
Check
that
the
Check that
Check for shorts
all
SOUND
Level controlls)
crossover
on
the
sP!'aker leads.
is
set to match
the
signal"level
of
t ' head unlu
'-
-
())*+*
!!!"#$%&'
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