Dynaudio Sub 3, Owner'S Manual

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Although it is often said that the location
of a subwoofer in a listening room is
not critical (as the human ear can not
locate direction at very low frequencies),
we recommend that you choose its
position carefully. Thus the subwoofer
can integrate seamlessly with the other
speakers in the system and interact
correctly with the room acoustics.
All of the following should be taken
as rough guidelines; bass response
in general is very dependent on the
acoustics of the listening environment.
Finding the best position often involves
a lot of trial-and-error experimentation.
Always trust your ears, even if the
position of the subwoofer seemingly
goes against the guidelines.
Contradictory as it may seem, good
integration of subwoofers has been
achieved when one isn’t aware that a
subwoofer is present at all in the system,
yet performance involves fast, deep and
solid bass without sounding stressed,
even at loud levels.
Choose adequate music material
When experimenting to find the
optimal location, use a couple of music
tracks with repetitive bass across a
large spectrum. The tracks should be
sufficiently different from each other
and each should cover a wide bass-
range. Musical instruments, such as a
double-bass, bass guitar, church organ,
etc. cover a wide spectrum in the bass
region and are therefore very suitable.
Using non-music (such as action movies)
material to position and adjust the
subwoofer with, may lead to spectacular
results with such material but almost
always it will result in overblown and
excessive bass when playing music with
the same setting.
Positioning the subwoofer
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