Owner's Manual

The best method for positioning a subwoofer is to put the subwoofer in your listening
chair, then play music with lots of bass through the system (something with steady
low frequencies or continuous test tones). Move around the room and note where
the bass sounds best; if you place the subwoofer in that location, you should get
the same bass performance. This test only works if you have your ears at the
same height as where the subwoofer will be, so you may have to get down low. A
recommended starting point for the placement of this subwoofer would be in either of
the front corners of the room, on either side of the main speakers.
C. Multiple Subwoofers—Why Two Subs Are Better Than One
Sometimes the listening room is not conducive to achieving satisfying amounts or
quality of bass. There are rooms with troublesome dimensions, especially those that
are more cubical. In such a case, two subwoofers placed carefully to work with each
other are recommended to handle acoustical anomalies. This can also be applied
when the problem is too much, or too uneven, bass. The overall system benets
from each subwoofer correcting the acoustic problems caused by the other. The two
subwoofers do not have to be identical.
A very good starting point for positioning two subwoofers is to place one each on
the centre of opposing walls. Experimenting with positioning as previously described
should be used for determining the location of the second subwoofer, except in this
instance one is listening for the minimum amount of bass output.
D. Control Settings
Once a reasonably smooth response has been achieved by careful positioning
of the subwoofers, the overall performance can be ne-tuned by means of the
speaker controls. The low-pass lter controls the upper limit of the subwoofer’s
frequency range. This should be set high enough to overlap the low frequency cutoff
of the satellite speakers, but not high enough to localize specic sounds from the
subwoofer.
If the frequency response of your satellite speakers is such that the subwoofer’s
low-pass lter must be set higher than about 80Hz in order to avoid gaps in the
overall system response, then you might be able to localize specic sounds from
the subwoofer. These sounds may seem to come from beside or behind you. One
solution is to ensure the subwoofer is in the front of the listening area; another is to
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