xSURR BACK SP (Surround back speaker size)
When the surround speakers are set to “NO”, the surround back speakers are also automatically set to “NO” and the setting cannot be changed.
•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 surround back speaker to “LARGE”.
•SMALL
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 back channel bass frequencies from the front speakers (if set to “LARGE”) or sub woofer.
•NO
If you did not connect a surround back speaker, select “NO”.
Tip
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” speakers. However, since bass has 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 the equalizer to boost the bass levels. To adjust the equalizer, see page 45.
xSURR BACK L/R (7.1 channel/ 6.1 channel switching)
•YES
If you connect two surround back speakers, select “YES”. The sound will be output to a maximum of 7.1 channels.
•NO
If you connect only one surround back speaker, select “NO”. The sound will be output to a maximum of 6.1 channels.
xSUB WOOFER (Sub woofer selection)
•YES
If you connect a sub woofer, select “YES”.
•NO
If you did not connect a sub woofer, select “NO”. The sound of the sub woofer will be output from the front speakers.
In the following cases, analog downmix function is used for the sub woofer channel audio.
–When using MULTI CH 1/MULTI CH 2 sources
–When the front and surround speakers are set to “LARGE”, the surround back speakers are set to “LARGE” or “NO”, and the center speaker is set to the settings other than “SMALL” for the digital sources.
In other cases, digital downmix function is used for the sub woofer channel audio.
This activates the bass redirection circuitry and outputs the LFE signals from other speakers.
Tip
In order to take full advantage of the Dolby Digital bass redirection circuitry, we recommend setting the
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