Magnepan 3.7's versus 20.1's?

Assuming a 'shoe-box' shape, What is the smallest room dimensions in which the 20.1's and 3.7's will work well?

15' sounds like a solid estimate on the minimum width. Does it make sense that the 20's would require greater room space than the 3's since they are so much larger? Maybe some of our 20.1 owners can comment.

"Available" but not sure a dealer actually has these yet... Aynone know of an actual Magnepan dealer that has a set of 20.7's?

Called Magnepan today and asked when 20.7's would most likely hit showroom floors; answer, approx. one more month...