Fishman Neo-D Magnetic Soundhole Pickup – House of Musical Traditions
Permanent Magnets Used in Electric Guitar | Stanford Magnets
Dahrendorf Guitars - Neodymium Pickups Neodymium is a magnetic alloy such as Alnico or Ceramic (Ferrite). It's not common material yet in conservative guitar pickup industry but it already found its place
Fishman Rare Earth Humbucking Magnetic Soundhole Pickup - StewMac
Essential Luthier Tools for Guitar Pickups | Fralin Pickups