Owner's Manual
Choosing
the
speaker
wire
Be sure
to
use
the
proper gauge (thickness)
of
speaker wire Standard zip cord (2-conductor,
18-gauge wire found
at
electrical and hardware stores) works
for
most
applications If your
speakers will be more than 30 feet
(9
m)
from the receiver
or
amplifier, see the "Wire recom-
mendations" under "Technical Information" on page 13 Or
check
with
your
authorized
Bose®
dealer
If you decide
to
run the speaker wire through a wall
or
underground,
check
your local building
code
requirements,
or
contact
an
electrical installer before proceeding
Note:Be
sure
to
cut
enough
wire
to
reach
from
the
receiver
to
each
speaker
CAUTION:
Before
making
any
connections,
turn
off
your
receiver
or
amplifier
and
unplug
it
from
the
outlet
(the
AC
power
mains)
Installing
the
mounting
brackets
The
251™
speakers should be mounted using the supplied brackets They can be mounted
onto
the exterior
of
a house
or
onto a
deck
railing
or
table If you choose
not
to
use the
supplied brackets, be sure
to
position your
251
speakers on a sturdy surface
A
CAUTION:
Ifyou do not
use
the
supplied brackets, choose a level surface
for
the
speak-
ers
Vibration
can cause
the
speakers
to
move,
so it
is
important that you install
the
supplied
rubber feet before using
the
speakers
on
a surface Refer
to
"Attaching
the
rubber feet"
on
page
11
Installing
the
brackets
onto
the
exterior
of
a house
The
251
speakers should be mounted in a vertical position
to
achieve the best musical
performance Figure 3 illustrates
how
the mounted speaker will look once the installation is
complete
To
begin, mark four holes
to
indicate where you want
to
install the speaker bracket
(Figure
4)
For wood, drill four starter holes using a
%2
inch (2,5 mm) drill
bit
(Figure
5)
For
cement, drill four starter holes using a
1,4
inch (6,0 mm) drill bit (Figure
5)
Figure
3
251 environmental speaker
mounted onto the exterior
of
a
house
Figure
4
Marking four holes on the
exterior
of
a house
FigureS
Drilling four holes on the
exterior
of
a house
6