I Figured it out...but not there yet.
Thanks a lot for all your thoughts, it was really helpful in understanding a lot of things.
I have always used the YPAO to optimize the output. And the maximum I used to later do is to manually change the speaker level to 10 db on each speaker that used to improve the performance a little.
I tried the Bass Crossover to 200KHz and I did feel an improvement.
Then later, I looked at the Parametric EQ section and started playing with it, and I could finally get to feel the Center Channel speaker's dominance and hear the dialogs very nice.
I got the desired effect alright, but I had a least idea of what I was doing with the EQlizers. I am concerned about the following and may be get some answers on this.
1. I set the speaker lever (what ever that is) to 10 db.
2. Changed the Parametric EQ - to high for all
* Would any of the above actions pose a threat to the speaker system (bose Accoustimas 15 III)
* Where can I get information about the Parameters (Bang / gain, Q, Freq) so that I understand what I am doing?