
10
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Installation
Choosing a location
The best location for the ALF100SM will
always be close to the in-wall speakers
it will partner, particularly where the
listening position is not fixed (for
example, offices, demonstration areas
etc). A close location to the speakers
will ensure that the path lengths to the
listener are similar, maintaining a good
volume balance between the speakers
and the sub.
However, as the low frequency bass
sound from the ALF100SM is not
directional, some flexibility is possible
when the listening position is fixed and
known (for example, seated in front of a
screen). In this case the ALF100SM can
be installed further from the speakers if
required. After installation, the levels of
sound from the speakers and subwoofer
can be balanced to give equal volumes
at the listening position.
As a general rule subwoofers placed
close to a corner of the room will tend to
be more efficient and generate louder
bass energy across the room.
Vibration
During installation, remember that the
ALF100SM produces deep bass sound
that can excite vibration in pipes and
wires within the wall/ceiling and also in
structure fitted items such as lights.
It is good practice to securely fix wiring
and pipes that run in cavities close to an
ALF100SM or to wrap them in adhesive,
acoustic foam to reduce the possibility of
vibration.