I imagine they would run well with a triode amp? that driver looks like it would take very little power.there is an entire cult of people that are into high efficiency single driver systems.as simple as these single driver speakers are that I have seen in the past I do not believe that they can accurately trace the entire spectrum of the audio signal. although I can respect the philosophy of no crossover I think it is somewhat of a pipe dream
they look like a good conversation piece do you think the introduction of a few hamsters would void the warranty???