Owner's Manual
Example-3:
RCA
Input from
Aftermarket
Radio
Eo
0
l
oo
_0000000:c
REMIN
GND
•
REM
OUT
Note:
If
the
source's
output
signal is full-range and the
bassRESTOR
is being used
for
subwoofer(s) only, a
low
-pass
filter
will
need
to
be engaged
at
the amplifier
to
filter
out
unwanted higher frequencies. Additionally, unless the
amplifier
already has
an
adequate subsonic filter, set the
bassRESTOR
's subsonic
filter
appropriately to prevent over-excursion.
Top Panel Adjustments
0 Clipping Indicator: This yellow
LED
indicates when the
output
signal
is
at
maximum level
before
distortion
(clipping) occurs.
It
will
be dimly
lit
just
before
the
onset
of
clipping, and
full
bright
at
clipping. Since the
bassRESTOR
can
produce up
to
1 0Vrms
at
maximum
output,
it
is
likely
that
gain
will
need
to
be
Q
cuP
~----
BASS
PROCESSOR-------.
EFFECT
WID
TH
FREQ
SUBSONIC
{ID
15
(Hz)
50
reduced below the illumination
point
to
match
your
amplifier(s) maximum
input
capability, optimize
source volume range
or
compensate
for
bass restoration applied
after
initial gain setting.
8 Gain Adjustment: This adjustment
is
for
matching the
output
signal level
of
the
bassRESTOR
with
the
maximum unclipped signal provided
by
your
source and the maximum
input
capability
of
your
amplifier(s). Follow proper gain setting procedures
to
ensure optimum source volume range
without
clipping
at
any
point
in the signal chain.
If
using music
to
set system gains,
it
is
recommended
to
utilize
a variety
of
bass content and recording levels
to
ensure proper headroom and minimize the ability
to
overdrive the system. Readjustment may be necessary
after
any changes
to
other
settings.
0
Bass
Processor: This section provides
full
adjustment over all parameters
of
the
bass
restoration
process
as
well
as
a subsonic
filter
. Unlike traditional equilization, this provides tuning flexibility
for
how bass restoration
is
dynamically applied
to
music content
as
well
as
for
differences between
vehicles and subwoofer systems.
0 Effect: Provides adjustment
for
the maximum amount
of
boost
that
can
be
applied by the
bass
restoration process, which depends upon the music content being played
as
well
as
the
width
and
frequency settings. Effect is essentially a
limiter
to
prevent overdriving subwoofers when set
properly.
If
gain
has
already been adjusted, adding more
effect
may cause the
output
to
clip and
require reduction
of
gain
to
achieve final desired unclipped
output
level.
After
effect
level
is
set,
it
is recommended
to
only use the remote's
outer
ring
for
on-the-fly
bass
level adjustments.
0 Width: This adjustment sets the bandwidth
of
frequencies enhanced by the
bass
restoration
process. A wide setting
will
include more adjacent frequencies
for
a broad
bass
enhancement,
while a narrow setting
will
only add frequencies closer
to
the chosen center frequency. Note
that
changing the
width
may also require readjustment
of
the
effect
and/or gain settings
to
prevent
clipping
or
overdriving the system.
0 Frequency: This adjustment
is
for
setting the center
of
the frequency range enhanced by the
bass
restoration process, between 30Hz and 80Hz.
8 Subsonic: Provides adjustment
of
the subsonic
filter
cut-
off
point
(F3)
below which all frequencies
are filtered out. Very
low
frequencies
can
waste amplifier power
but
this setting
is
especially
important
for
preventing damage
to
subwoofers from large amounts
of
bass
restoration and
potential
for
over-excursion in ported enclosures below the tuning frequency.
Note
:
The
bassRESTOR
is
capable
of
full-range signal
output
. When used
for
a subwoofer system, a
low
-
pass
filter
(usually
built
into
amplifiers)
will
need
to
be applied and adjusted appropriately
to
remove
unwanted higher frequencies.
If
the subsonic and a low-pass filter's
cut-off
points are
set
too closely
together, only a narrow frequency range
will
pass
through and
will
result in reduced
output.
4