I had a pair many years ago. At the time I had Audio research VT150se driving them. They sounded great at the time with very nice midrange and natural presentation.
If it had a weakness it was a little murky and defuse. Much of that could be overcome.
The speaker itself benefited vastly from addressing the crossover components and wiring. This made a new speaker out of it.
Try a plinus amp on them too. That voicing was close to the ARC but with more grip in the bass and would squeeze that last bit of volume out of those reticent 2 way planars. Today you would have to careful as the glues that held the bass panal wires on the diaphram will be very weak due to UV and age.
If it had a weakness it was a little murky and defuse. Much of that could be overcome.
The speaker itself benefited vastly from addressing the crossover components and wiring. This made a new speaker out of it.
Try a plinus amp on them too. That voicing was close to the ARC but with more grip in the bass and would squeeze that last bit of volume out of those reticent 2 way planars. Today you would have to careful as the glues that held the bass panal wires on the diaphram will be very weak due to UV and age.