Modern PA speakers have all sorts of jiggery-pokery going on in the backround. This is why they are lovely. My ears are too trashed to do loud anymore. I own a QSC K10.2. It goes all the way to the bottom and is very pokey. It is the future. If I needed more then I would borrow two QSC K12.2. I cannot imagine ever, ever needing more unless I was doing a large, open air gig with no PA support. And that is never going to happen.
We have arrived in the future.