One great point was that field coil does not automatically make a speaker good! So true. Most of them are junk, or at best nothing special.
But some real good drivers only came out in FC versions, so how can you know if it is the FC making them good?
The comment about the negatives of humbucking coils was interesting also. I recently dismantled a Jensen 18" Auditorium speaker and a WE TA-4181 18" driver. Since the WE unit was OEM Jensen or at least Jensen parts, the metal parts and construction were identical. The same replacement cones fit both units. However, the Jensen had a humbucking coil and the WE did not. That was the only visible difference.
Well gotta get off the computer and finish packing. Leaving for the Munich High End show in the morning, where I will be hearing field coils for a week, 10 hours a day...
PS: Here's some pics of the inside of a TA-4181. Scary looking ancient stuff!
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