08-07-14: Melbguy1hi Melbguy1
Bombaywalla, I acknowledge your fair comments. However on the one
hand Magico are telling me the S5's are time coherent, and on the other
you are telling me they are not. One might ask who do you believe? May I
pose this question to you, Is a speaker either time coherent or not? Or can
there be different degrees in between? And are (objective) measurements
more important than (subjective) listening in assessing the overall
coherency of a speaker?
Melbguy1
who do I believe? I believe myself & my research & my understanding of the matter.
The S5 are not time-coherent if they use higher order x-over i.e. 2nd order or higher. Period.
Bifwynne's answer/post is exactly correct re. the S5. The use of higher order x-over destroys the phase difference relationship amongst the various frequencies in the audio band 20Hz-20KHz. The physics of using a higher order x-over prevents the speaker from being time-coherent.
Doug Schneider's review of the S5 is a nice read but Doug is not trained in engineering math & physics to understand the subtleties between phase coherence & time coherence. So, I would not latch onto Doug's words & find comfort in them re. the speakers being time-coherent.
Like Bifwynne wrote, you can still buy & like the S5. Just don't call it time-coherent - it's at best phase coherent/phase linear at its x-over frequencies.