Owner's Manual
Diagram
shows
speaker
locations
for
5.1
and
7.1
systems.
when
two
additional
in-wall
speakers
are
installed
in
the
rear
wall.
Please
Note:
For
more
on
speaker
placement
go
to:
www.polkaudio.com/education/article.php?id=
15
or
www.polkaudio.com/downloads/hthandbook.pdf
Norm-If
your
room
is
not
reflective,
with
curtains,
artwork,
lots
of
cushioned
furniture
and
carpeting,
sound
will
be
absorbed
by
the
room,
resulting
in
more
realistic
reproduction
and
more
accurate
imag-
ing.
In
this
case,
select
the
tweeter
"Norm"
setting.
A
"Diffuse"
image
is
defined
as
one
which
creates
a
"cloud"
of
sound;
think
of
the
effect
as
ambient
sounds
which
fill
the
environment
all
around
you,
but
are
less
localizable.
Tweeter
-'L
n
Filter
/
Norm
A
"Solid"
image
is
one
which
creates
a
more
pin-
point
sound;
sound
is
more
localized.
The
location
of
sounds
in
the
sound
field
is
more
identifiable.
Wall
Distance
Switch
(65F/X-RT
and
all
LS
Models
except
the
Center
Channell
In-wall
loudspeakers
excel
when
placed
more
than
2'
(60cm)
from
side
walls.
If
position
limitations
demand
that
in-wall
loudspeakers
be
installed
closer
than
2'
(60cm)
from
side
walls
or
ceiling,
the
proximity
of
the
surface
can
result
in
a
response
"bump"
between
50
and
200Hz.
This
can
cause
in-wall
speakers
to
sound
"boo
my."
The
"Wall
Distance"
switch
flattens
response
and
eliminates
"boominess"
without
sacrificing
deep
bass
response,
for
more
lifelike
sound.
Wall
Dist.
-'L
n
<2' >2'
(6Deml
(6Dem}
Tweeter
Switch
(LS
and
RT
models
except
F/X
models)
Filter-If
your
listening
room
is
very
reflective,
with
smooth
sheetrock
walls,
hardwood
floors,
and
non-cushioned
furniture,
the
sound
will
be
overly
"bright"
and
unnatural.
Selecting
the
"Filter"
setting
compensates
for
the
effect
of
reflectiv-
ity
in
a
hard
room.
Tweeter
attenuation
flattens
room
response,
without
hindering
higher
frequency
response,
for
warmer,
more
realistic
sound
and
more
accurate
imaging.
ROOM
ENVIRONMENT
CONTROLS
Imaging
J'"L.
n
Diffuse
/
Solid
Imaging
(65F/X-LS
model
only)
F/X
Surround
Loudspeakers
offer
switchable
"Diffuse"
and
"Solid"
imaging
patterns
to
create
the
surround
effect
you
desire.
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Center
Channel
Speaker
Placement
Install
the
255c-LS
or
255c-RT
as
close
as
possible
to
ear
level.
If
the
speaker
needs
to
be
installed
higher,
aim
the
tweeter
down
as
required.
Do
not
block
the
center
channel
with
your
TV
or
furniture.
Left/Right
Orientation:
F/X®
surround
loud-
speakers
have
a left/right
orientation,
and
each
speaker
is
clearly
marked
on
the
serial
number
label
on
the
back
of
the
magnet
for
installation
on
either
the
right
or
left.
Right
and
left
are
defined
from
your
listening
area
as
you
face
your
system's
center
channel.
SURROUND
SPEAKER
PLACEMENT
Polk
Audio
F/X®
surround
loudspeakers
give
you
nearly
endless
placement
options.
But
remember
that
where
you
place
your
surround
speakers
requires
some
careful
thought.
as
installation
requires
that
you
cut
a
hole
in
your
wall
or
ceiling.
20'\
)/
To
paint
the
Sheer-Grille
1.
Elevate
the
Sheer-Grille
off
of
aflat
surface.
This
will
ensure
even
coverage
of
the
grille
frame
and
make
it
easier
to
pick
up.
Mounting
Idea:
Two
spray
can
caps
will
raise
the
grille
high
enough.
2.
Hold
the
spray
paint
about
12"
from
the
grille
and
at
a
45°
angle.
3.
Apply
one
light.
thin
coat.
moving
evenly
side
to
side
over
the
grille,
then
work
your
way
around
the
perimeter
of
the
grille
to
ensure
you
cover
the
grille
frame.
4.
After
each
application
of
paint.
wait
approximately
1
minute,
rotate
the
grille
90°,
and
apply
the
next
thin
coat.
Important
Note:
You
must
rotate
the
grille
90°
Use
your
hands
to
define
the
next
90°
rotation
and
always
rotate
the
grille
in
the
same
direction
of
travel.
r
Important
Note:
Never
use
a
brush
or
roller
to
paint
the
grilles,
as
this
will
clog
the
perf
holes.
Paint
Recommendation
We
highly
recommend
you
use
a
can
of
spray
paint
matched
to
the
wall
color
you
want
the
Sheer-Grilles
to
blend
with.
IMPORTANT
INFORMATION
SHOULD
YOU
CHOOSE
TO
PAINT
YOUR
GRILLES
Because
of
its
ultra-thin
profile,
the
Vanishing
Series
Sheer-Grille'"
requires
a
specific
painting
procedure
to
ensure
smooth,
even
coverage.
The
grille
scrim
and
perforated
grille
come
assembled
and
require
no
disassembly.
5.
Three
light.
even
applications
should
cover
the
grille
and
frame
adequately.
Remember
to
work
your
way
around
the
grille
frame
to
cover
it
evenly
and
completely.
For
more
information
visit
our
website
at
www.polkaudio.com
3