thanks for your responses, duke. where is sellerwith's reply about these and other questions?
vertical dispersion: they cut off above and below the ribbon. i wasn't sure but you just confirmed it. this may not be noticed by some on the model 2 but will be noticed on the smaller model 3.
i don't agree the horizontal comb filtering is of negligible significance when it approaches 1/4 wavelength. in the horizontal plane it's more perceivable. people go to lots of trouble to get phase coherency. http://www.linkwitzlab.com/frontiers.htm#J says a lot on the subject.
vertical dispersion: they cut off above and below the ribbon. i wasn't sure but you just confirmed it. this may not be noticed by some on the model 2 but will be noticed on the smaller model 3.
i don't agree the horizontal comb filtering is of negligible significance when it approaches 1/4 wavelength. in the horizontal plane it's more perceivable. people go to lots of trouble to get phase coherency. http://www.linkwitzlab.com/frontiers.htm#J says a lot on the subject.