Wilson Electronics Sophia Series 2, Owner'S Manual, Page: 16 / 66

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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
overly heavy, “chesty” quality because of your proximity to the rear wall.
2. While speaking, slowly move out into the room, progressing in a direc-
tion parallel to the sidewall. It is helpful to have another listener seated
in the listening position to assist you during this process. Listen to how
your voice “frees up” from the added bass energy imparted by the rear
wall boundary. Also notice that your voice is quite spatially diffuse (to
your assistant, your voice will sound spatially large and difficult to local-
ize) as you begin to ease away from the rear wall.
3. At some point during your progression forward into the room, you will
observe a sonic transition in your voice; it will sound more tonally cor-
rect and less spatially diffuse (your assistant can now precisely localize
the exact origin of your voice). When you hear this transition, you have
entered the inner edge of the Zone of Neutrality. Place a piece of tape
on the floor to mark this location. Although it will vary from room to
room, the zone in most rooms begins between two and a half to three feet
from the rear wall.
4. Continue to walk slowly away from the rear wall. After some distance,
usually one to two feet past the first piece of tape, you will begin to hear
your voice lose focus and appear to reflect (echo) in front of you. This is
caused by the return of the room’s boundary contribution; your voice is
now interacting with the opposite wall. At the point where you begin to
hear the reflected sound of your voice, you have reached the inner edge
of the Zone of Neutrality. Place a piece of tape on the floor and mark
this location. The distance between the “inner” and “outer” edge tape
marks is usually between eight inches (for small, interactive rooms) and
three feet (for large, more neutral rooms).
5. Now position yourself against the side wall perpendicular to the intended
speaker location. Stand between the two tape marks. Using the same
procedure as above, begin moving into the room toward the opposite
sidewall, progressing between the two pieces of tape. As above, listen
for the point in the room where your voice transitions from bass-heavy
and diffuse to neutral. Mark this point with tape. Continue your progres-