Hello thanks for the response.
My room is 14 wide X 23 long X 8 foot. but the room opens up with a small opening on the long end to 14 X 20. so really you could say it is 40 feet long.
I am looking to replace my ML Summit X speakers with a Dynamic speaker not sure if I may need to go with a 5A.
Do you think the Quatro would have enough bass output??