Imagine your typical sealed box, 2 way, 6 inch woofer + 1 inch tweeter standmount/bookshelf speaker, either MTM or TM configuration. There're plenty of those either in the Hifi and Pro markets. To simplify this, let's assume that the speakers use the same drivers, for example a Satori midwoofer and Satori soft dome tweeter and both use an outboard crossover, like, for example, First Watt B4 and the necessary bi-amping. What makes one suitable for 1 meter listening distance (3.2 ft aprox.) and close wall placement, and the other optimal for 2 or 3 meters listening distance and placement away from the walls? My guess is that the xover has something to do, but I've read (but couldn't find more specific info) that speaker drivers need X distance to "blend" correctly, coaxial drivers don't have this problem AFAIK, but the quantity of conventional 2 ways vs coaxials available in studio monitors heavily favors the traditional approach, which is a bit confusing. I would be glad if someone could clarify this to me, as I've been looking on the subject but couldn't get a clear answer searching in the web.