Owner's Manual
6.
LPF
(Low
Pass
Filter)
Control
This
filter
allows
the
low
pass
of
frequency
and
has
an
adjustable
crossover
point
from
40Hz
to
200Hz.
A
setting
of
40Hz
will
produce
only
the
low
frequencies
(deep
bass).
A
max
setting
of
200Hz
will
allow
the
amplifier
to
produce
a
more
punchy
(higher)
bass
response.
7.
SUB
SONIC
Control
This
control
is
continuously
adjustable
from
20Hz-50Hz
at
12dB
per
octave
to
provide
an
extra
level
of
speaker
protection
from
bass
robbing
power
at
unheard
frequencies
8.
SENSITIVITY
A
wide
range
of
signal
input
voltages
can
be
accommodated
by
the
STA-1
O
with
the
push
of
a
button
(250mV-1
OV).
This
wide
range
is
split
up
into
two
sub-ranges,
accessible
by
pushing
the
sensitivity
switch:
IN
2V-
1
OV;
OUT
0.2V
-
6V
9.
PHASE
Switch
This
switch
will
reverse
the
phase
of
the
speaker
output
without
having
to
touch
any
wiring.
O
is
normal.
180
reverses
the
output.
Select
whichever
setting
provides
the
most
bass
in
your
application.
10.
POWER
Indicator
The
top
BLUE
L.E.D.
lights
up
when
the
power
is
on
and
the
system
is
wired
correctly.
The
bottom
RED
L.E.D.
lights
up
when
the
unit
is
in
protection.
11.
FUSE
For
convenience
most
PowerBass
AutoSound
amplifiers
utilize
common
automotive
ATC
type
fuses.
For
continued
protection
in
the
event
that
a
fuse
blows,
replace
the
fuse
only
with
the
same
value.
STA-10
uses
a
30A
fuse.
CAUTION:
These
power
fuses
on
the
amplifier
chassis
are
for
protecting
the
amp
against
over
current
situation.
To
protect
the
vehicles
electrical
system,
an
additional
fuse
should
be
used
within
18-inches
of
the
battery
on
the
12V+
cable.
12.
BATT+
(12
V
olt
Positive)
This
terminal
is
the
main
power
input
for
the
amplifier
and
must
be
connected
directly
to
the
positive(+)
terminal
of
the
battery.
A
minimum
of
8ga
cable
is
required.
13.
REM
(Remote)
The
amplifier
in
your
STA
enclosure
can
be
turned
on
by
applying
12
volts
to
this
terminal.
This
can
be
on
the
rear
of
the
source
unit
(radio)
in
the
form
of
an
output
or
remote
output.
If
this
is
not
available
you
can
wire
up
to
the
ACC
position
on
the
ignition
key
switch.
An
18ga
wire
is
sufficient
to
run
the
remote.
NOTE:
If
using
the
high
input,
the
amplifier
will
turn
on
automatically
when
it
senses
a
signal
from
your
radio.
You
will
not
have
to
hook
up
the
REM
wire
in
this
case
14.
GND
(Ground
Input
Connection
)
A
good
quality
ground
is
required
for
the
amplifier
to
operate
a
peak
performance.
A
short
length
of
cable
the
same
gauge
as
your
power
cable
(8ga
is
recommended)
should
be
used
to
attach
the
ground
terminal
directly
to
the
chassis
of
the
vehicle.
Make
sure
that
all
of
the
paint
is
sanded
or
scraped
away
to
ensure
a
good
quality
ground
connection.
8