The DiMarzio P3 is a (bridge) humbucker with a ceramic magnet. It is an OEM DiMarzio pickup featured on 1990's Yamaha Pacifica's. It is said to be similar to the DiMarzio Steve's Special which was introduced in 1995. The DiMarzio P3 hence, predates the DiMarzio Steve's Special. The specs I have here are the specs of the Steve's Special.