Perplexed on how single driver speakers can cover such a large Hz range

My brain hertz just thinking about it.

The old constraints described above for crossoverless single-driver speakers have  been nearly, if not totally, eliminated:

@dlcockrum This statement is false. I explained why in my prior post.

@ronboco Yes, I am very much a budget-conscious consumer. I watch a lot of reviews and GR Research stood out to me. There was something appalling about seeing cheap crossover parts, drivers and flimsy cabinets on major brand speakers, some of which costed thousands. I was still rocking the Klipsch RP600M which I loathed since day 1 (They suck). So yeah, I figured that I’d look into single driver speakers with sturdy cabinets and no crossover to muck things up. At least most of the money will go into the drivers and the cabinet. 
 

I visited a shop in Paris which sells a bunch of single driver speakers (unbranded DIY kits) alongside Atohm and Davis Acoustics speakers. The speakers based on the Audax AM21 driver were brilliant. I gotta say that the Atohm and Davis Acoustics speakers sounded veiled next to the Audax AM21 which were just faster and more immersive. I didn’t get the AM21 since they were a bit too large for my tiny living room. 

Years later I experienced a few other speakers with multiple drivers and they were just great. I could happily live with the KEF LS60 but the price is eye-watering and they exhibit an overly “clean Hi-Fi” sound at times. At the very high end you get to have a larger sense of scale/depth/volume and way better bass. But I personally don’t feel like my single driver speakers are bested in the midrange/treble/detail categories. 
 

You could assume that my hearing isn’t great, and that wouldn’t be far fetched. So my end game setup is very attainable. I’d like to be the village idiot in that conversation, or the average person at the very least. 

@atmasphere My ears say otherwise, but they can’t read.