You are welcome to build anything you want, or to purchase anything you want.

The Griffin Paper clearly states that a line array requires a coupling of 70% of the height in order to be viable as a line array. Rick Craig can do anything he wants. Perhaps your room is higher than the standard seven foot American home. In that case your listening may not be in the near field.

I'm only commenting on the research paper that I used to design my speaker systems. I refer you to Dr. Griffin's line array paper, the bible of what all we do in line arrays since 2003.

Marlboro