Sony STR-DE845 Operating Instructions Manual page 20

Multi Channel Surround Setup
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• Center speaker size (CENTER)
Initial setting : LARGE
• If you connect a large speaker that will effectively
reproduce bass frequencies, select "LARGE". Normally,
select "I.ARGE". However, if the front speakers are set
to "SMALl.", you cannot set tile center speaker to
"LARGE".
• If the sound is distorted, or vou feel a lack of surround
effects when using multi channel surround sound,
select "SMALL" to activate the bass redirection circuitry
and output the center channel bass frequencies from the
front speakers (if set to "LARGE") or sub woofer..1
• If you do not connect a center speaker, select "NO". The
sound of a center channel will be output from the front
speakers.*-"
• Rear speaker size (REAR)
Initial setting : LARGE
• If you connect large speakers that will effectively
reproduce bass frequencies, select "LARGE". Normall};
select "LARGE". However, if the front speakers are set
to "SMALL", you cannot set the rear speakers to
"LARGE".
• If the sound is distorted, or you feel a lack of surround
effects when using multi channel surround sound,
select "SMALL" to activate the bass redirection circuitry
and output the rear channel bass frequencies from the
sub woofer or other "LARGE" speakers.
• If you do not connect rear speakers, select "NO". .3
"(_""1-'3 correspond to the followingDolbyProLogicmodes
,1 NORMAL
.2 PHANTOM
,3 3 STEREO
"_" Aboutspeakersizes(LARGE andSMALL)
Irtternally,
the LARGEand SMALL settings for each speaker
determ le w le er _r _o I e internal _ und processor will cut
tbe bass sig _a fr m_ la cannel. When the bass is cut from a
channel, the bass redirection circuitry sends the corresponding
bass frequencies to the sub woofer or other "LARGE" speakers
However, since bass sounds have a certain an_ount of
directkmality, it best not to cut them, if possible. Therefore, e\'en
wben using small speakers, you can set them to "LARGE" if you
want to output the bass frequencies from that speaker. On the
other band, if you are using a large speaker, but prefer no o
have bass frequencies output from that speaker, set it to
"SMALL".
If the overall sound level is lower thar_ you
prefer, set all speakers
1 tt LARGE . It there Is not enough bass, you can use the
equalizer to boost the bass levels. To adjust the equalizer, see
page 40.
• Rear speaker position (REAR PLACE)*
Initial setting : BEHIND
This parameter lets you specify the location of your rear
speakers for proper implementation of the Digital Cinema
Sound surround modes in the "VIRTUAL" sound fields.
Refer to the illustration below.
• Select "SIDE" if the location of your rear speakers
corresponds to section _.
• Select "MIDDLE" if the location of your rear speakers
corresponds to section _.
• Select "BEHIND" if the location of your rear speakers
corresponds to section _.
This setting only effects the surround modes in the
"VIRTUAL" sound fields.
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