Finally got everything hooked up and running and all I can say about my VTF15 is
I am still trying different settings but so far my favorite is one port open and EQ1 and Q.7 is what sounds good for music and tv without making adjustments. The biggest difference for me is how the bass hits then is gone. My last sub would hit but would have a long boominess sound that followed,if that makes sense. I feel as though I have found the right location for the sub. The bass sounds like it is coming from the other speakers. I turned off the sub to check and the bass was gone. It seems to just blend in and can not tell where it is coming from.
Thanks to everyone for the help and recommendation.
By the way,the wife really likes it and says she is happy that we bought a good one this time and will not need an upgrade for a long time. If we are able to find a house that has a room to build a HT,she has mentioned buying another one. Man I love my wife!!!!!!!!