Fishman Rare Earth Single Coil Soundhole Pickup. The Rare Earth Single Coil has been carefully re-voiced and fine-tuned to offer an even smoother treble response than their popular, category-defining predecessors.Equipped with cutting-edge neodymium magnets, the new Rare Earth pickups offer a warmer, more naturally acoustic tone, along with exceptional accuracy and increased musicality. Offers brilliance and articulation for those who prefer the single coil sound.