Wilson Electronics Alexandria XLF, Руководство пользователя

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W i l s o n A u d i o S p e c i a l t i e s
this point with tape. The four pieces of tape now form a rectangle that es-
tablishes the Zone of Neutrality for the loudspeaker located on that side of
the room. Using the four marks as your guide, tape an outline to define the
boundaries of the rectangle.
6. Repeat this process for each speaker location individually. These are your
Zones of Neutrality, one for each channel.
Theoretically, the Zone of Neutrality for any room runs like a path, parallel to the
walls all around the room. Adjacent to very large windows and open doors, the outer
edge of the Zone of Neutrality moves closer to the wall and becomes wider. If you were
to extend the inner and outer boundaries of the Zone for the sidewalls and the front wall
(behind the speakers), they would intersect. After you complete this procedure for the
other loudspeaker, you will now have two rectangles, one on the floor on either side of
the room.
Note: The more reflective or “live” sounding the room is, the more difficult it will be
to detect the changes in your voice; thus, you may have to repeat this process until
the zones have been determined.
Section 2.2—Room Reflections
Note: The following section contains general information on room acoustics and loud-
speaker/room interaction. The concepts outlined below are equally relevant when
dealing with multi-channel audio or home theater. The careful application of these
concepts, as you evaluate the acoustical characteristics of your own room configura-
tion, will allow you to optimize the performance of your Alexandrias.
Slap Echo
Probably the most obnoxious form of reflection is called “slap echo.” With slap-
echo, primarily midrange and high frequency sounds reflect off of two parallel hard sur-
faces. The sound literally reverberates back and forth until it is finally dissipated over
time. You can test for slap echo in any room by clapping your hands sharply in the middle