Lanzar Car Audio 2651D Stereo Amplifier User Manual


 
AMPLIFIER
FEATUER
DESCRIPTIONS
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I.
Une
Out
RCA
Jacks·
The
LINE
OUT
allows
you
to
build
multiple
amplifier
systems
without
having
to
use
splitter
cords
to
distribute
the
signal.
Now
it
is
simple
a
matter
of
bringing
one
set
of
RCAs
into
the
first
amplifier,
then
using
the
line
out
RCA
jacks
as
the
feed
to
the
next
amplifier.
Z.
Line
Input
RCA .Jacks - These inputs
are
for signal cables from
the
source.
Always
use
high
quality
shielded
RCA cables.
3.
Input
Level
Controls·
Enables
the
matching
of
input
levels
to
the
output
levels
from
the
head
unit!
or
other
signal
source).
4.
Phase
Shift·
Allows
you
to
change
the
phase
of
your
subwoofer
from
0
to
180
degrees
to
help
compensate
for
timing
differences
between
drivers.
Amplifier
Feature
Descriptions:
BAlANCED
INPUT: Accepts balanced line inputs
from
0.4 volts
to
18
volts.
LINE
INPUT:
The Line Inputs
are
the
RCA
input jacks labeled "LINE
INPUr.
This
is
where
the
Radio/CD player
RCA
outputs
connect to. The
line
Inputs accept unbalanced
RCA
inputs
from
0.2 volts
to
9 volts.
UNE
OUTPUT:
The Line
Outputs
are a direct pass·through
from
the
inputs. The
RCA
input
signal from the radio/CD player
is
routed
through
the
amplifier and
out
of
the
Line Outputs.
The outputs
would
connect
to
another
amp
Line Inputs in a multi-amp set-up. This allows
you
to
daisy
chain
multiple
amps
from
a single set
of
RCA
cables
from
the
radio/CD
player.
LEVEL: The
input
level
control
allows
you
to
match
the
amplifier
input
sensitivity
to
the
output
level
of
the
RADIO/CD player from 0.2 Volts
to
9 volts
when
using unbalanced
RCA
cables. The
level
control
needs
to
be
adjusted
to
match
the
line
level
Sensitivity fthis
is
the
amount
of
voltage
the
radio/CD player
RCA's
provide. Example:
If
the
radio/CD player Line
level
Sensitivity
is
4 volts,
adjust
the
amp
level
control
to
4 volts
SUBSONIC:
The variable SubsoniC filter
is
for
subwoofer
applications
that
require
very
low
tuning
frequencies typically
around
15Hz - 35Hz.
BASS
EQ:
Variable
Bass
Boost
from
0
to
1
OdB
at
a fIXed 45Hz.
LOW
PASS: Fully adjustable crossover
from
35
to
250Hz.
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5.
Brigde
Mode
6.
Variable
Bass
Boost
Control·
0 - + 10dB
7.
Variable
Subsonic
Filter·
15Hz-35Hz
8.
Low
Pass
Filter·
When
Crossover
Mode
Selector
is
in
Low
Pass
Mode,
this
control
limits
the
frequencies
which
will
be
distributed
to
the
speakers
to
those
below
the
value
to
which
this
is
set
within
the
range
35Hz-250Hz.
9.Power
&
Protection
Indicator
..
Provde
instant
information
on
status
of
amplifier,
including
short-circuit
and
thermal
overload
alerts.
10.
Balanced
input:
Accepts
line
level
balanced
input
from
0.4v
to
18v.
PHASE
SHIFT: The
Phase
Shift
is
fully adjustable
from
0
to
180 degrees
and
this allows
you
to
control
the
timing
of
the
subwoofers. This
is
commonly
used
when
the
subwoofers are installed
in each
front
door.
SYSTEM
DIAGNOSnCS:
The amplifier has built-in
monitoring
devices
and
protection
circuits
that
monitor
all vital functions
of
the
amplifier. The Protection
light
does
not
come
on
to
indicate
there
is
a failure,
it
comes
on
when
it
detects
an
improper
operation.
Common
issues
that
cause.
Protection status are:
-
THERMAL:
The
amp
has
an
internal temperature sensor
that
will
automatically
shut
off
the
amp
if
it
reaches dangerous
temperature
levels.
-
OVER
LOAD:
If
the
amp
is
run
at
an
improper
impedance,
the
amp
will
shut
down.
If
you
are
-CUPPING- speakers / subwooferfsJ,
the
light
will
blink
to
indicate a
hard
Clip.
• DC PROTECT: In
the
unlikely event
the
amp
should internally fail,
the
amp
will
shut
down
to
prevent
a DC
voltage
output
to
the
speakers
or
sub.
REMOTE:
The Remote
Module
plugs
into
the
Remotejack
and
allows
you
to
adjust
the
level.