Setting the Surround Configuration SelectorFIGURE 4�This overhead view shows a typical home
It is generally recommended that the selectable surround modetheater plan with a single rear-center surround channel.
configuration be set to Bipole. This will provide a large ambient
surround sound field while allowing for precise localization of
sound effects that the filmmaker has placed in the surround
tracks.
LeftCenterRightInfinity
FrontChannelFrontSubwoofer
If the side walls on which the speaker will be mounted are moreChannelChannel(optional)
than about 14' from the listening position, setting the Surround
Mode Configuration Switch to Monopole may offer improved
performance. It is also recommended that the Monopole position
be selected if the speakers will be mounted close to a corner, as
shown in Figure 2.
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If you are using a receiver/processor with a THXsurround mode
and have selected the THX surround mode, it may be beneficial to
Couch
use the Dipole setting. This is a matter of personal preference
and may change depending on the individual film soundtrack. It
is also recommended that the Dipole setting be used with olderLeftRight
SideSide
recordings that are only recorded with a Dolby* Pro Logic* (notChannelChannel
the newer Dolby Digital) soundtrack.
Rear Center Channel
IMPORTANT NOTE: The set of drivers that the arrow in Figure 3
points to should be installed toward the front of the room. It does
not matter whether or not the tweeter is positioned above or
FIGURE 5�This overhead view shows a typical home
below the woofer.
theater plan when using two rear-channel speakers.
This will ensure proper operation and performance should the
Monopole or Dipole position on the surround mode configuration
switch be selected.
LeftCenterRightInfinity
FIGURE 3�Surround mode configuration switch.FrontChannelFrontSubwoofer
ChannelChannel(optional)
DIPOLEBIPOLE
MONOPOLE
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LeftRight
SideSide
Placement (Application 2)ChannelChannel
When using the Infinity Alpha 25ES as a rear speaker in a 6-
or 7-channel home theater system, refer to Figures 4 and 5.
Left Rear ChannelRight Rear Channel
The speaker(s) should be mounted on the rear wall facing the
listening area, between the side channel speakers. If you are
using one rear speaker, it should be mounted as close as
possible to the center of the listening area.When using two
rear speakers, they should be spaced evenly within the width FIGURE 6�Surround mode configuration switch.
of the listening area.
Setting the Surround Configuration Selector
When used as a rear channel speaker in a 6- or 7-channel
system, it is recommended that the Surround Mode ConfigurationDIPOLEBIPOLE
Switch be set to Bipole, as shown in Figure 6.
MONOPOLE
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