Sony STR-DE485 Operating Instructions Manual page 17

x Front speaker size (
• 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 speakers are set to "SMALL",
the center and surround speakers are also
automatically set to "SMALL" (unless
previously set to "NO").
x Center speaker size (
• 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 a center speaker, select
"NO". The sound of the center channel will be
output from the front speakers.*
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x Surround speaker size (
• 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
3
"NO".*
Tip
*1–*3 correspond to the following Dolby Pro Logic
modes
*1 NORMAL
*2 PHANTOM
*3 3 STEREO
Tip
Internally, the LARGE and SMALL settings for each
speaker determine whether 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"
speakers.
However, since bass sounds have a certain amount of
directionality, it is 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 the BASS +/– to boost the bass levels. To
adjust the bass, see page 28.
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