Yes, Steve used the HDTs as a voicing tool in all his designs. I was really impressed with the HDTs on my last visit. Is the latest scheme of the HWs transcendental from the Upside Down?

Phil,
My last sentence was a whimsical reference to the “Upside Down” parallel reality in the Netflix “Stranger Things” series. Love that series and the family teases me because of my ability to sit through a whole season in one sitting. Normally I do not watch TV at all except when tired, usually falling asleep, or catching up on current events.

Anyhow, I like where you went with it.

Your thoughts are valid and inline with how things can play out with speaker and driver positioning.

In this situation, I think that using a box from a different design with new drivers limit the choice of drivers to fit the space allotted. The two drivers charts show a peak around 3k varying with off axis response. Placing the tweeters on the in or out position can change what is heard for better or worse. I suggest it might be better to place the plates with the tweeters on the inner most side if not already tried. As far as time alignment, most of that was perfected with the choice of crossover values, correcting the difference in depth of sound wave origin of the two drivers. From all the talk it seems like a home run was hit here!

Cheers