There is not a store in the country that stocks all four of these powered 10" cabinets. And very few places even carry Yorkville and even fewer have FBT, there are none in my area that I can audition.
They only have Mackie and JBL.
That is why I am trying to network with people who know about them. I am sorry if this topic offends you.

FBT MaxX 2A
Yorkville E160P
JBL EON10
Mackie SRM 350