I had a colleague over the other day to listen to music and at one point she indicated that in her opinion some of the bass was not there. The LSi9's were configured without the SVS PB12-PLUS - 2 CH only. The next day I configured the system to use the sub while playing music. I played with it for hours and came to one of two conclusions.
1) I did not configure it properly. I tried many levels.
2) I only like music in 2 CH.
Today I disable the sub for 2 CH and played the same music. The conclusion is that the sub will be used for video only. Am I missing something.
The music was by Josh Groban namely the title "My Confession".