Andrew Jones - New Company, New Speaker - Field Coil Concentric

why AJ would choose to use 1920’s tech in a 2020’s speaker

Adding to @phusis ’s excellent post, the age of a technology has zero bearing on its relevance, per se. Tesla leveraged 1860s tech to good effect.

it should be pretty easy to understand that electromagnets are adjustable / tunable in ways fixed magnets simply aren’t. Tunability is considered a desirable attribute.

Re pricing. I'm gonna say $39,995 (pair). What's your guess?

@phusis 

please explain.

Because electromagnets make speakers sound better

@devinplombier 

why did speaker maker stop using this amazing tech? 

@curiousjim 

In the old days, permanent magnets first didn’t exist, then they were very expensive (Alnico). Electromagnets were economical in comparison, so everyone used them.

In the 50s cheap ferrite magnets displaced electromagnets. Field coil drivers pretty much vanished from the face of the earth, until their recent reincarnation as luxury / boutique item.