JBL Synthesis SAM3HA - Manual (Page 4)

Positioning your loudspeakers properly is critical in order to achieve the
sonic performance of a home theater. Please read the following section
for guidance in correct and optimal placement.
L EFT AND R IGHT S PEAKERS : If you have purchased a Synthesis Three
Array Digital Home Theater System, then the model SAM3VA will serve as
your front left and right main speakers.
Since the left and right speakers have been designed for maximum localization
of sound, they should be placed with the center of the speakers at about the
same height on screen as the actors would be, to aid in the illusion that the
actors’ voices are coming directly from their on-screen images. Ideally, the
speakers will be placed about 45 degrees apart from each other, viewed
from the listening position, so that the distance between the speakers is the
same as each speaker’s distance from the listener (see Figure 1).
C ENTER C HANNEL S PEAKERS
SAM3VA: If you have purchased the vertical channel speaker (model
SAM3VA) for the center position, be sure to place it vertically during
installation in order to take advantage of its sound-dispersion characteristics.
If you mount it horizontally, it will not provide the correct dispersion pattern.
If the speaker is being used with a perforated projection screen, it should be
mounted behind the center of the screen (see Figure 2). If a nonperforated
projection screen, plasma display or other fixed video device is being used
in the installation, the preferred center speaker is the model SAM3HA (below).
SAM3HA : If you have purchased the horizontal channel speaker (model SAM3HA) for the center position, be sure
to position it horizontally during installation in order to take advantage of its
sound-dispersion characteristics. If you mount it vertically, it will not provide
the correct dispersion pattern. Although the preferred speaker model to be
used with a perforated projection screen is the vertical model SAM3VA
(above), the SAM3HA horizontal speaker may be used instead and should be
mounted behind the center of the screen. If a nonperforated projection
screen, plasma display or other fixed video device is being used in the
installation, then the recommended location is directly below and as close
as possible to the video display (see Figure 3), although the inverse of this
method will work also.
4
R C L
VIEWING
POSITION
FLOOR PLAN
Figure 1. 5.1-Channel system
Figure 2.
Figure 3.
S
PEAKER
P
LACEMENT
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