I could make an forever post about listening and experimenting with drivers and getting a ton of first hand comparisons of properly designed speakers. Speaker evaluation was my biggest hobby the past 5 years and I will undersign that most commercial speakers are crap and often bad crossovers are only part of the worries. Like the B&W 683 I heard recently definitely had some untamed resonances in the treble region which could be attributed to bad crossover but nothing can save that bass resolution. And the worst part was that when you look at the driver in photos it looks amazing!!!
So yeah, proper design first of course. Still, just listen to an AA Monitor and the Philharmonitor side to side. The difference will be obvious. If you care enough for it is another thing ;-) If I was in the US, I'd totally have gotten that for my surveilance workplace