Who take what?
Professional operators probably take the “good old” Auratones, because they are still the sound reference and standard speakers. They don’t sound dusty and old fashioned at all. They convince throughout the complete range of audio engineering tasks. The Avantone is a professional tool too. The sounds lead in another direction, harder, direct. If desired much louder than the other competitors, but in the end tonal too unbalanced sound. Behritones is more for home recording, for someone who needs a second pair of monitor speakers, to adjust the mid-range better.
What these speakers can do and what they can’t do?
To say it loud and clear, these speakers don’t replace full range studio monitor speakers. Or a combination of satellite and subwoofer. Their only purpose is, serve as second pair of control room speakers, for track the mid-range frequency. And control the mix down on small and “lo-fi” speakers. The discreet bass-range allows mixing in that way, that the bass-range doesn’t disappear and on the other side bass frequencies haven’t to high levels and mash up the mix. For big fat studio monitors this could be ok, with these small and tiny speakers we get an unpleasing, awkward sound.