Thanks for your input
The Rhea II is with a driver on each side, active / passive .....
I strongly suggest the bad speaker situation is not the case for Joachim Gerhard designs, these are extremely well designed products, also the subwoofers, where as the Audio Physic Minos ranks really high, for my use case the Rhea II is excellent, with a very solid build quality of the cabinet, well performing drivers, but hampered by troubled amplifiers....
Coupled with Trinnov Amethyst and, the sub integration is really great, and with 4 subwoofers I suffer no audible limitations and / or compressions, I cannot go crazy as I live in a flat, there are neigbors.
Arendal is definitely on the radar, and there are other options too ....
Honest I believe Arendal could be step down from the Audio Physic, there is sold tons of them here because these are really well performing subs.... but some parts breaking in the amps....