As for the M2 bookshelves and on-walls, you can read my reviews at the links below. I was shocked when I heard them. That's when it finally hit home for me that larger Axioms are "nothing more" than spectrum and SPL extenders. The actives go further by increasing low end range and accuracy across the entire spectrum which results in greater spatial resolution and a more life-like presentation. They can also hit very high SPLs for large MLPs (more than 18 feet).
https://www.axiomaudio.com/reviews/index/list/product/301/https://www.axiomaudio.com/m2-on-wall-speakerI've placed them in my 1900 cu.ft. living room and 4200 cu.ft. main room (not shown). They sound at home in both locations.
