Sony STR-DE475 Operating Instructions Manual page 16

Multi Channel Surround Setup
x Front speaker size (
L
Initial setting : LARGE
• If you connect large speakers that will effectively
reproduce bass frequencies, select "LARGE". Normally,
select "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 front channel bass frequencies from the
sub woofer.
• When the front speaker is set to "SMALL", the center
and surround speakers are also automatically set to
"SMALL" (unless previously set to "NO").
p Center speaker size (
Initial setting : LARGE
• If you connect a large speaker that will effectively
reproduce bass frequencies, select "LARGE". Normally,
select "LARGE". However, if the front speakers are set
to "SMALL", you cannot set the center speaker 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 center channel bass frequencies from the
front speakers (if set to "LARGE") or sub woofer. *
• If you do not connect the center speaker, select "NO".
The sound of the center channel will be output from the
2
front speakers.*
p Surround speaker size (
Initial setting : LARGE
• If you connect large speakers that will effectively
reproduce bass frequencies, select "LARGE". Normally,
select "LARGE". However, if the front speakers are set
to "SMALL", you cannot set the surround 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 surround channel bass frequencies from
the sub woofer or other "LARGE" speakers.
• If you do not connect surround speakers, select "NO".*
z
*1~*3 correspond to the following Dolby Pro Logic modes
1
* NORMAL
2
* PHANTOM
3
* 3 STEREO
16 GB
)
R
)
C
1
)
SL SR
3
z
About speaker sizes (LARGE and SMALL)
Internally, the LARGE and SMALL settings for each speaker
determine whether or not the internal sound processor will cut
the bass signal from that channel. When the bass is cut from a
channel the bass redirection circuitry sends the corresponding
bass frequencies to the sub woofer or other "LARGE" speaker.
However, since bass sounds have a certain amount of
directionality it best not to cut them, if possible. Therefore, even
when using small speakers, you can set them to "LARGE" if you
want to output the bass frequencies from that speaker. On the
other hand, if you are using a large speaker, but prefer not to
have bass frequencies output from that speaker, set it to
"SMALL".
If the overall sound level is lower than you prefer, set all speakers
to "LARGE". If there is not enough bass, you can use BASS +/–
to boost the bass levels. To adjust the bass, see page 32.
x Surround speaker position (
Initial setting : PL. BEHD.
This parameter lets you specify the location of your
surround speakers for proper implementation of the
Digital Cinema Sound surround modes in the
"VIRTUAL" sound fields. Refer to the illustration below.
• Select "PL. SIDE" if the location of your surround
speakers corresponds to section A.
• Select "PL. BEHD." if the location of your surround
speakers corresponds to section B.
This setting only effects the surround modes in the
"VIRTUAL" sound fields.
A
B
* These parameters are not available when "Surround
speaker size" is set to "NO".
)*
SL SR
90
A
45
B
20