There are likely differences in the products with all the names you mention, but NOT likely enough to matter much. Pick what you need, feature-wise, at a price you'd like to spend and go for it. After you've used them for awhile either they'll be fine, or you'll know better what you'd like "better" and you can go looking for something else... Such things are not "life-time" purchases and will rather often have to be replaced(And can be upgraded/changed then anyway)...... If you can actually check some of them out in person, so much the better...

And, yes, you might get more opinions in this or other forum's "live gear/sound reinforcement" sections..?

TG