Some speaker driver measurements...

Strange how different your spl response is compared to Dickason... perhaps Dickason didn't mount them flush to the baffle?

https://audioxpress.com/article/test-bench-scan-speak-d3004-606200-tweeter-from-its-illuminator-line

1732541863700.png


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Dickasons measurements are often ... inconsistent. This 2,8kHz dip doesn't come from the tweeter for sure, I would not publish such data, not even in a forum.

The tweeter itself ... I'm spoiled from Bliesma off axis performance. THD is also not famous, H2 is high and H3 rises under 2kHz a lot, so you can't use a low crossover frequency (Bliesma has lower THD at 1,5kHz AND through the complete range).

Happy to have enough T25B for my personal use here ... still the best tweeter out there.
 
Dickasons measurements are often ... inconsistent. This 2,8kHz dip doesn't come from the tweeter for sure, I would not publish such data, not even in a forum.

The tweeter itself ... I'm spoiled from Bliesma off axis performance. THD is also not famous, H2 is high and H3 rises under 2kHz a lot, so you can't use a low crossover frequency (Bliesma has lower THD at 1,5kHz AND through the complete range).

Happy to have enough T25B for my personal use here ... still the best tweeter out there.
The dip is present on HIFI Compass and the manufactures data. Voice coil is more prevalent.
 
Interesting, this SB coaxial looks pretty good, better than I expected. I wonder how it compares to Seas MR18REX for usage in a 3-way crossed at ~200hz, I think they are priced similarly.
For a good price point, i would advice you to take a hard look at the Sica coaxes linked below, they perform extremely well for the $ required.

https://sica.it/coaxial-line-for-hi-fi-and-studio-monitor/

https://www.dibirama.it/home-page/coassiali/691-sica-5-5c1-5cp-8-coassiale-5-5-1-8-ohm-240-wmax.html

https://www.dibirama.it/home-page/coassiali/654-sica-6-5c1-5cp-8-coassiale-6-5-1-8-ohm-240-wmax.html