A legendary speaker design -Saba Greencone successors. More on my blog http://lampizator.eu/SPEAKERS/PROJECTS/Speaker%20projects.html about open baffle dipole designs. Lukasz Fikus' newest speakers. Special product for demanding listeners. Designed in-house from ground up and all made by hand.
Doubling the number of woofers provide further +6db of maximum output. Basically they are vertically-stacked W-Frame open baffle speakers. The arrangements allows the front baffles to be kept narrow. Follow the discussion at LinkwitzLab forum here. There are some cosiderations that needs to be investigated carefully, for example the effect of gravity to cone acceleration.
PureAudioProject just confirmed that its latest Trio15 configuration is now available for pre-order. As Ze'ev (Wolf) Schlik, the founder of the modular speaker company explains, the Trio15 Coax10 project is a step closer to the realization of its original vision. "For a long time we were aiming for a three-way Open Baffle Speaker made right; and with 2020 coming to end we are excited to announce the addition of Trio15 Coax10 to our Trio15 line."