I am very interested in the Pure Audio Project line of speakers.
Wish the Quintet 10's had the same high efficiency as the other speakers, 89dB is not what I want in an open baffle.
The 2 that might work are the Trio 15 and what you have.
I have 8' ceiling, so the 7' Quintet 15 may be too tall.
The other option I have been considering is the Spatial Audio X4 open baffle speakers... but they are 4 ohm and I use tubes... will surely work, but trying to not make compromises.
What are your room dimensions and your system?