Nice system! I run a KIK stereo amp into Maggie 1.7i's, but I think they could use a bit more power. Also run a Rythmik servo sub off 2nd main out of pre amp. XO at 80hz to take some lows off the Maggies.
A couple questions... looks like your splitting each Stratos output to feed subs too. Appearently that is how its done with mono blocks and of course subs must be passive, but doesent that affect ohm load and take power from the 1.7i's?
Also, more of a comment, but cats and Maggies? Ive read of horror stories.