This is strictly play back no instruments. The mains are 2 pair Klipsch laScala's and soon to be a pair of SH 110Bs. The subs are run from 2 Crown XTI 6002- both pairs. LS have there own amps.. run in stereo. not sure what you mean by aligned? (im still pretty new to this so excuse my arrogance).
I have the 4 Danleys together in the middle, i 21 active CV sub on both sides and the LS (stacked) next to that. The wall is 18' and it takes it all up. Not sure where im going to put the 100Bs??
It is NOT a good idea to simply pile speakers up-especially different model numbers.
Yes it will get louder-but you will also make it sound worse since the different speakers will be working against each other at certain freq.
Since you already have subs-I would suggest the SM100F instead of the SM100B.
It is less expensive-does not go as low (you need the low freq) but is louder and the same physical size
By aligning-I mean the delay-crossover-eq applied to the various cabinets so that the amplitude and most importantly the phase response is well behaved.
With a "mis match" of cabinets" the actual response could be all over the place and there is no way anybody can suggest something (without measuring) that would likely be of much help.
What I would do is to simply "play" with the crossover settings until you get something you are happy with.
Also remember to use different styles/artists etc when listening. You may find a setting that works for one song-but is worse for another. This is a good indicator that something is not properly lined up.
Using different model subs is almost never a good idea-because of the different phase and amplitude response. But sometimes people get "lucky"