I have the Yamaha MS400 speakers, I think they are great.
I had FBT maxx4A before & I like the MS400 better, I like the 15" speaker.
The FBT had 12" sub like the Mackie SRM450.
The MS400 handels the HF, & LF as good as the
FBT & handels mid range better. IMO
The Thing that bug's me is I paid $600 ea. for mine.
And that was a good deal at the time
OH well every thing I buy is worth nothing after I buy it
Enjoying the (worth nothing) 9000 PRO
Denny