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A 6.1-channel
system is a conventional
5.1-channel
system to which the "surround
back" (SB) channel has been added.
This makes it easy to
achieve sound positioned
directly
behind the listener, something
that was previously
difficult
with sources designed
for conventional
multi
surround speakers.
In addition, the acoustic image extending
between the sides and the rear is narrowed, thus greatly improving the expression
of the surround signals for sounds moving from the sides to the back and from the front to the point directly behind the listening position.
Change of positioning
and acoustic image
with 5.1-channel
systems
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Movement
of acoustic image from SR to SL
Change of positioning
and acoustic image
with 6.1-channel
systems
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Movement of acoustic image from SR to SB to SL
With this set, speaker(s) for 1 or 2 channels are required to achieve a 6.1-channel
system (DTS-ES, etc.).
Adding these speakers,
however,
increases the surround effect not only with sources recorded in 6.1 channels but also with conventional
2- to 5.1-channel sources. All the Denon
original surround modes (see page 50) are compatible
with 7.1-channel
playback, so you can enjoy 6.1-channel
sound with any signal source.
• Number of surround back speakers
Though the surround back channel only consists of 1 channel of playback signals for 6.1-channel sources (DTS-ES, etc.), we recommend
using
two speakers.
When using speakers with dipolar characteristics
in particular, it is essential to use two speakers.
Using two speakers results in a smoother
blend with the sound of the surround channels and better sound positioning
of the surround back
channel when listening from a position other than the center.
• Placement of the surround left and right channels when using surround back speakers
Using surround back speakers greatly improves
the positioning
of the sound at the rear. Because of this, the surround left and right channels
play an important
role in achieving a smooth transition
of the acoustic image from the front to the back. As shown on the diagram above, in a
movie theater the surround signals are also produced from diagonally in front of the listeners, creating an acoustic image as if the sound were
floating in space.
To achieve these effects, we recommend
placing the speakers for the surround
left and right channels slightly more towards the front than
with conventional
surround systems.
Doing so sometimes
increases the surround effect when playing conventional
5.1-channel sources in the
6.1 surround or DTS-ES Matrix 6.1 mode.
Check the surround effects
of the various modes before selecting the surround mode.
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