I suspected the rears may not have been doing a good job. Maybe they need to be placed closer in rather than close to the side-walls. The other challenge is that multi-driver speakers require distance in order to blend properly. Maybe they should be placed higher up and angled down. That will reduce their bass response and that's where an M5 will shine over an M2.
The M5s on the ceiling will blend well given their distance.
As for the cost, it's a whole lot of speakers so work Axiom over for a deal.
