@helomech please don't cop out and pull the 'Google is your friend' to deflect your exaggerated response. I asked you to point me to all of the measurements that you are referring to which say all Legacy speakers seemed flawed.
Speakers as tone controls? Name one speaker that isn't a tone control! All speakers, even what the beloved Amir uses (Revel Salon 2s), produce orders of magnitudes more distortion than any piece of gear/cable/tweak feeding them. So yes, they are all tone controls. Why do you think they all sound so differently?
I'll humor you for a bit and pretend there are tons of measured Legacy speakers with posted plots online (of which there are very, very few and most are the older Studio model). The only flaw with Legacy is their tendency to be a bit heavy in the bass section. And that has a lot to do with electronics I've found.
I have also found that test tones, you know some of what our expert testers believe are everything, are not worth much. I can flip a switch on the back of my Focus SEs which will attenuate bass response under 80Hz by 2dBs. And it is bloody obvious when I enable/disable that attenuation when playing music. But the praised REW software measured two identical charts. It just couldn't detect the difference whatsoever with it's limited capabilities. Plus, test tones are way different than the complexities of listening to music...which is what these things are designed to be listened with.