Basically it's a Coilsurround pickup but instead of strings running between the coils ... a modified* Halbach Array of Neodymium Iron Boron magnets is sandwiched between the two coils.
This shoots a uniform field high above the surface of the unit ... establishing a zone of parallel lines of force through which the strings run ... resulting in a response very similar to "string thru" pickups ...
Here's some measurements:
It's a Humbucker that can be switched to "A$$ Kicking" mode ... featuring very high output with lush tone, although it's not hum cancelling ...with a DPDT switch. Still very quiet due to being fully enclosed in a grounded aluminum case.
I was corresponding with a fellow well-versed in “Pickup Lore” …
... and he said it sounds similar to a classic stacked humbucker's "power boost" option ... except that the overall magnetic circuit has plenty of "juice" to involve the lower coil in signal production. This particular unit is for a six string Ricky SW6 that I have ... ran out of cast steels to retrofit
It is 1.5" wide x 1.375" tall x 3.5" long with a sensing length of 2.36" ... black wrinkled. Its mount is integrated into the lower unit.
*To be extremely technical ... a standard Halbach Array produces multipole segments along its length which is not useful in pickups. I figured out years ago how to augment the array to produce a usable dipole field. The CoilSurround uses multiple arrays which are similar to the FV2's array. ... Both are very difficult to make and this is reflected in the cost of these units.
