A Question About Time Alignment

It doesn't sit well to have a Master Speaker tuner and Master Audiophile that is so uncapable of doing his own work to come to me with no humbleness and then post this publicly.... 

Tim it does not sit well with me that you tried to tune my speakers remotely without even knowing what cabinets I was using. Sorry but any competent speaker designer knows that this is a bad idea if not impossible. There were so many variables to play with yet you were so confident, arrogant even to suggest that you could tune my speakers to perfection first time round. You then insinuated that should they not be satisfactory, you would be very upset with me. This is completely unreasonable.

If you are so confident I dare you to submit your circuit to me and it will be built and then judged to see how good it really is.

I hereby challenge you Tim.

Wow, just wow. I never would have dreamed that this topic could be so 'diverse'. I read one post after another, saying one thing only to be roughly corrected by the next couple of posts. 

 I suppose that my take here is that you want the drivers to launch the audio signal 'in step' with each other. Also to be taken into account is the ear/brain acceptance of receiving of the audio. Let's say that 8 milliseconds are insignificant to the ear/brain acceptance (meaning that this draws a meaningful amount of attention). OTOH, 30 milliseconds are another matter, and will be noticed. I am not using actual millisecond references, but just rough ideas of time.

 If I were to design a loudspeaker, I certainly would want a certain amount of alignment between drivers, whatever that number in milliseconds needs to be. If mounting the drivers makes no discernable difference to ear/brain were golden.

@kenjit       Nope

@paul6001     Sorry that I derailed your thread with Kenjit,  but overall and I can tell you that a handful of people that gave you answers had a very good understanding and gave accurate answers. It looks to me that regardless of the many answers, most concur.  The speed of sound makes all frequencies travel at the same speed regardless of wavelength.  Phasing does matter to some degree, but is not the be all end all.  

I can tell you that there are differences.  I have taken a nice 2way out of a standard type of cabinet and switched it to a sloped front cabinet. To be fair, also changed the crossover a bit to compensate for listening angle at the seating position, but in the end.  I was able to add depth to the soundstage as well as a more pinpoint placement of instruments...  Overall,  in some speakers, it may not be dramatic, but in others, depending on design, it very well could be.   Good luck,  I hope this helps in some way,  Tim

So what in the hell is a Master Audiophile?