REVEL performa3 f208 or TEKTON Moab

David Wilson, Richard Vandersteen and John Dunlavy wouldn't agree with that article. Nelson Pass designs nice amps, but not loudspeakers.  

Physics and electrical engineering does not change suddenly because you don't own a speaker company. I don't own a speaker company, but I likely know far more about truly advanced active speaker design than David, Richard and John combined.

Pass has done extensive measurements with his amplifiers driving real speakers, so his body of knowledge extends well beyond just the terminals on the back of his amplifiers.

First order or NO ORDER!!!  Audio2design!!!

John Dunlavy also said this,

Dunlavy: That's right. You can go one way but not the other. Flat on-axis response provides very poor correlation, in general, with what you hear. On the other hand, if you have near-perfect impulse and step responses, it follows that you must also then have from that a near-perfect frequency response on-axis. And using a first-order crossover network is the only way you can achieve accurate impulse and step responses. As soon as you go to a second-order crossover, the impulse response is hideous. 

And as Toole proved when at Harman, a flat on-axis response was absolutely critical to how well a speaker will be considered to sound.

Dunlavy was one of the best. I sold his loudspeakers as a young man in the 1990's. SC IV and V's were and still are great loudspeakers .