Heck, for that matter, standard M22s wouldn't work in a column. They've got a rear port. Best bet is inwall M22s, I would think in this case. At least they're designed to be constrained like that.
Unless of course you happened to make the column's 19.8" x 7.3"
7.36" is width (front face width correct?
My column depth will be closer to 9" - I can say that Front face of the speaker will be 9" from the wall...I can make it to this point...If i make 1" more -- it will look little odd on top of the tray ceiling by 1"...
Bookshelf depth is 8" , Column width is 9" -- 1" distance between the bookshelf and Wall ( banana plug will not be an issue here)
Only issue Port effect....
Reason to avoid inwall or onwall -- during speaker upgrade..it will be an issue to use it somewhere else..
I guess i am not annoying people here...i am very interested in these speakers (I want to buy it, not just for trial)