Alpine 3555 - Active Dividing Network High-Pass;Off Settings; Input Gain Adjustment Procedure; Status Monitor Light Interpretation

SWITCH
SETTINGS
—
b)
Set
to
the
“HP”
position
when
the
3555
is
used
for
the
high-pass
(tweeter/midrange)
system.
The
frequencies
lower
than
80 Hz
will
be
cut
(at
a
rate
of
18
dB
per
octave).
1
OFF HP LP
c)
Set
to
the
“OFF”
position
when
the
3555
is
used
for
the
regular
stereo
system
with
full
range
speakers.
The
full
bandwidth
will
be
output
without
cutting
the
high
or
low
frequencies.
i
q
OFF HP LP
Input
Gain
Adjustment
Controls
@
and
®
After
setting
your
head
unit’s
volume
control
1/4
of
a
turn
down
from
the
maximum
output
level,
rotate
the
Input
Gain
Adjustment
Controls
@
and
®
with
a
#0
flat
blade
screwdriver
and
adjust
the
input
gain
to
the
point
where
there
is
maximum
volume
with
no
distortion.
Status Monitor
This
indicator
lights
in
green
when
the
power
is
on.
The
3555
has
built-in
protection
circuitry.
If,
for
some
reason,
this
protection
circuit
is
activated,
the
indicator
turns
orange.
If
this
happens,
turn
the
system
off,
find
the
cause
of
the
problem
and
remedy
the
situation.
This
includes
checking
all
your
connections
and
wiring.
If
the
indicator
remains
orange
when
the
system
is
turned
on,
consult
your
authorized
Alpine
dealer.
NOTE:
The
indicator
will
illuminate
in
orange
for
a
few
seconds
when
the
power
is
turned
on
as
the
turn
on
muting
circuit
is
activated.
This
is
normal.
16