Connections, Description, Speaker placement – Luxman LR-7500 User Manual
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The ideal surround speaker system for this unit is 7-speak-
er systems, using front left and right speakers, a center
speaker, surround left and right speakers, surround back
left and right speakers, and a subwoofer.
For best results we recommend that all front speakers be
of the same type, with identical or similar driver units. This
will deliver smooth pans across the front sound stage as
the action moves from side to side.
Your center channel speaker is very important as over 80 %
of the dialog from a typical motion picture emanates from
the center channel.
It should possess similar sonic characteristics to the main
speakers. Surround channel speakers need not be identi-
cal to the front channel speakers, but they should be of
The surround center speaker is useful for playback of
Dolby Digital Surround EX or DTS-ES. One of the benefits of
both Dolby Digital and DTS is that surround channels are
discrete full range, while they were frequency limited in
earlier "Pro Logic" type systems.
Bass effects are an important part of home theater.
For optimal enjoyment a subwoofer should be used as it is
optimized for low frequency reproduction. If you have full
range front speakers, however, they may be used in place
of a subwoofer with proper setting of the switches in the
Front left and right speakers
We recommend to set the front L and R speakers with 45-
60 degrees from the listening position.
Align the front line of the center speaker with the front L/R
speakers. Or place the center speaker a little backward
from the line.
Surround left and right speakers
When the LR-7500 is used in surround operation, the pre-
ferred location for surround speakers are on the side walls
of the room, at or slightly behind the listening position.
The center of the speaker should face into the room.
Dolby Digital identifies the use of Dolby Digital audio coding
for such consumer formats as DVD and DTV. As with film
sound, Dolby Digital can provide up to five full-range chan-
nels for left, center, and right screen channels, independent
left and right surround channels, and a sixth ( ".1") channel
for low-frequency effects.
Dolby Surround Pro Logic II is an improved matrix decoding
technology that provides better spatiality and directionality
on Dolby Surround program material; provides a convincing
three-dimensional soundfield on conventional stereo music
recordings; and is ideally suited to bring the surround expe-
rience to automotive sound. While conventional surround
programming is fully compatible with Dolby Surround Pro
Logic II decoders, soundtracks will be able to be encoded
specifically to take full advantage of Pro Logic II playback,
including separate left and right surround channels. (Such
material is also compatible with conventional Pro Logic
Dolby Digital EX creates six full-bandwidth output channels
from 5.1-channel sources. This is done using a matrix
decoder that drives three surround channels from the two
in the original recording. For best results, Dolby Digital EX
should be used with movies soundtracks recorded with
Dolby Digital Surround EX.
About Dolby Pro Logic IIx
Dolby Pro Logic IIx technology delivers a natural and
immersing 7.1-channel listening experience to the home
theater environment. A product of Dolby's expertise in sur-
round sound and matrix decoding technologies, Dolby Pro
Logic IIx is a complete surround sound solution that maxi-
mizes the entertainment experience from stereo as well as
5.1-channel encoded sources.