I just hope I'm not bothering you too much already , so I guess this will be my last question before start building the speakers.
Since I will not be able to build the tower versions, I wonder if tilting the front of the speakers upwards a bit would help with the "on axis" response of the tweeter at ear level of a seated or even a standing person.
In my specific case, I figured out that slanting the design 10ยบ would help have tweeters rougly on axis of a person seating 12' away from the speakers...
...but in other forums some people mentioned that some tweeters don't behave well when perfectly on axis (dips at some frequencies), so I wonder what's your opinion on the VIFA's on this regard.
Also I don't know if this will be beneficial or detrimental for the time alignment of the tweeter/woofer combo (maybe this is already accomplished electrically with the crossover).