WILSON AUDIO WATCH SURROUND, 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 , I N C .
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I N A L
S
Y S T E M
T
U N I N G A N D
V
O I C I N G
7-5
I
MAGE
H
EIGHT
Check the image height. Does the dialogue of a movie have the correct height? Is it
too low or too high?
If needed adjust the amount of rotation until the image height is correct. On a stand
or floor mounted Center channel, raising the front spikes will raise the image height, lower-
ing the front spikes will lower the image height (you may need to add or remove a spacer to
get the correct image height).
C
ENTER
R
OTATION
Our testing has shown that a stand mounted Center channel, at listening distances
greater than 2-3 meters, requires the front of the center channel to be raised about 1”. This
is because the effects of comb-filtering are more noticeable the further you are away from
the Center channel. This combfiltering reveals itself as a slight nasal sound in the voice. If
you notice this in the sound you should raise the front spikes of your center channel until the
combfiltering is reduced. Often, raising the front spikes as little as 1/2” will eliminate the
combfiltering.
R
ESETTING THE
PDC
Once the final rotation has been determined, you will need to reset the PDC. This
may be done as follows:
• Measure the distance you have raised the speaker.
• Slide the tweeter forward 1/2 of the distance you raised the
speaker.
Note: If you lowered the speaker, then the tweeter will slide back 1/2 of the lowered
distance.
Every system has a unique time and phase character which, can effect the PDC ac-
curacy. Because of this, you may find that sliding the tweeter forward or backwards a few
positions increases the clarity and correctness of your Center channel. If you like, experi-
ment with the tweeter position and lock it in position when you find the location you feel to
be most accurate.