Synergy horns. I'm sure there are already UK installations, but I haven't seen a domestic installation anywhere in Europe. Coaxial dispersion but much much less limited in SPL than the KEFs and Gradients of the world. Polar from their spec sheet (Danley SM-60F):
View attachment 38068
I think I mentioned it to you already, but in light of the addition of the HEDD to your line, the
KS Digital C5-Reference could be very interesting. It blends some features of the HEDD with the Gradient speakers, and I haven't seen it discussed/used much in the English-language market despite being sold on Thomann. It uses a 6.5" SEAS OEM coaxial, similar to Gradient's 1.4/Revolution (though spec'd differently). It's sealed, active, made in Germany and has FIR filtering to linearise phase (like the HEDD). It's in a mini-monitor format (steel enclosure that can be angled; slightly larger than LS50), and surprisingly
well-priced given all these features. Measured performance under very demanding anechoic conditions is +/- 1dB from 250Hz to 9kHz (+/- 1.5 from 150Hz to ~9.5kHz), with linear phase at the crossover:
View attachment 38070
Graph trace of the graph above (high treble dips are inherent to SEAS design, inconsequential and Gradient has it as well):
View attachment 38078
Their own specs:
View attachment 38071
I've spoken to them before and I've been quite impressed - similar vibes to HEDD, willing to make relatively innovative speakers in Germany at a surprisingly affordable price.