Even though you may have just posted yesterday, it always helps to indicate the AVR model number you have (2112CI in this case) as we cover 7 different models in this thread. Thanks.
1. AMP ASSIGN allows you to "assign" the the Surr Back/Amp Assign speaker posts to several other settings as noted in your owner's manual. The factory default setting is Zone 2 and is the correct setting with a 5.1 or 5.0 setup.
2. Your ears? Have you read the Audyssey 101/FAQ linked in my sig to ensure you have setup AUdyssey properly?
3. The AVR can only play what it receives. Not all stations that indicate DD actually broadcast in DD 5.1. Note that when the display reads DTS Neo:6, that is just one of the simulation modes used when a stereo signal is received. The more common setting woud be DD PLII - Cinema if you want to change it by pressing the MOVIE button on your Denon remote. Note also that normally there isn't going to much audio going to the side surrounds unless you're playing an action movie with a lot of sound effeccts. For the Superbowl, you may prefer using the "Mult CH Stereo" surround mode which will play the FL/FR audio in the SL/SR speakers and is generally a better mode to use with parties or when lots of people are milling around and the 5.1 surround sound isn't so important.
4. Yes. Press the "CH Level" button on the remote (noted in yellow in image below) and select the speaker/sub you want to adjust and then adjust the volume accordingly.

5. If you do a lot of movie/TV watching, you'll want to add a comparable sub to your setup sooner rather than later.
1. AMP ASSIGN allows you to "assign" the the Surr Back/Amp Assign speaker posts to several other settings as noted in your owner's manual. The factory default setting is Zone 2 and is the correct setting with a 5.1 or 5.0 setup.
2. Your ears? Have you read the Audyssey 101/FAQ linked in my sig to ensure you have setup AUdyssey properly?
3. The AVR can only play what it receives. Not all stations that indicate DD actually broadcast in DD 5.1. Note that when the display reads DTS Neo:6, that is just one of the simulation modes used when a stereo signal is received. The more common setting woud be DD PLII - Cinema if you want to change it by pressing the MOVIE button on your Denon remote. Note also that normally there isn't going to much audio going to the side surrounds unless you're playing an action movie with a lot of sound effeccts. For the Superbowl, you may prefer using the "Mult CH Stereo" surround mode which will play the FL/FR audio in the SL/SR speakers and is generally a better mode to use with parties or when lots of people are milling around and the 5.1 surround sound isn't so important.
4. Yes. Press the "CH Level" button on the remote (noted in yellow in image below) and select the speaker/sub you want to adjust and then adjust the volume accordingly.
5. If you do a lot of movie/TV watching, you'll want to add a comparable sub to your setup sooner rather than later.
























If you actually have a speaker system with 7.1 or more speakers, then there are options in the receiver to extend audio to the additional speakers.


