The Gibson 57 Classic Plus Humbucker Pickup was made to represent those pickups made in the late 1950s that accidentally received a few more turns of wire. While these are not 'high output' pickups, they deliver just a little more of the 'sweet stuff', without sacrificing any of the rich, vintage tone. The Gibson '57 Classic Plus is suitable for the bridge or neck position and when put in the bridge position, makes a perfect match with a '57 Classic in the neck position. 2-conductor wiring.