"Does "fast" equate to "detailed"?
I had always thought of it in broader terms of sonic resolution plus timing, i.e. accuracy of signal transduction in real time. Quick or fast speakers would be expected to have excellent detail, but REAL detail, not the grainy, harsh etched high end that results from deploying a sizzing tweeter. A quick system would also have low, tight bass, and excellent soundstaging/imaging characteristics, as well as accurate tonality and timbre. In short, a fast system would be highly resolving, so much so that it transcended harshness and approached the reality of the original event, within nothing more and nothing less than near perfection, with no need to "overcompensate" for its annoying weaknesses with sonic gimmicks.

