I based my original question on my home trial of the Gallo Strada lls and the Green Mountain Chromas which I compared for over a week. In my shopping experience I did audition Vandersteens, known for a time coherent design. They also sounded very natural to me. It may well be that time coherence is sufficient for this natural sound quality but not necessary.
As has been said these qualites are probably not mutually exclusive even though they seem to me to often not be found in the same speaker. In an effort to experiment, I put Seas Melenium Tweeter in the Chromas today. (I had them in my kit speakers) They sounded livelyer and more resolving. Maybe you can get both vivid dynamics and naturalness as in live music.
As has been said these qualites are probably not mutually exclusive even though they seem to me to often not be found in the same speaker. In an effort to experiment, I put Seas Melenium Tweeter in the Chromas today. (I had them in my kit speakers) They sounded livelyer and more resolving. Maybe you can get both vivid dynamics and naturalness as in live music.