Lrsky, I know what you mean about the Sound Labs- I've heard them many times as I have lots of customers and friends who have them or had them. The detail and cohesive quality that ESLs are capable of on a day to day basis is something that usually leave magnetic loudspeakers in the dust.
Until field coils re-emerged. Field coils were common in the old days until sometime in the 1950s- permanent magnets are cheaper to produce. It seems to be the curse of audio that there is a movement always to the bottom, but in high end we are concerned more with performance, so it is only natural that field coils would show up again.
I think the Classic Audio Loudspeakers, fully equipped with field coils top to bottom, are in the +$50K range. The field coils seem to have the property of doubling the cost of the speakers, which are also available with alnico magnets.
Until field coils re-emerged. Field coils were common in the old days until sometime in the 1950s- permanent magnets are cheaper to produce. It seems to be the curse of audio that there is a movement always to the bottom, but in high end we are concerned more with performance, so it is only natural that field coils would show up again.
I think the Classic Audio Loudspeakers, fully equipped with field coils top to bottom, are in the +$50K range. The field coils seem to have the property of doubling the cost of the speakers, which are also available with alnico magnets.