Made by Stephen Jahns out of Nashville, TN, the A-90 is very similar to a jazzmaster style pickup but it fits your typical P-90 route. This set is under wound to get a clean and warm sound. The neck pickup has Alnico 2 magnets and the bridge has Alnico 5, reverse wound for hum cancelling in the middle position.Neck - 6.2kBridge - 7.1k