DiMarzio DP212 EJ Custom Humbucker F-Spaced Electric Guitar Bridge Pickup BlackWelcome, you are looking at a great piece. This is the DiMarzio DP212FBK EJ Custom Humbucking Bridge Pickup in Black. Wiring: 4 Conductor. Magnet: Alnico 5. Output mV: 200. DC Resistance: 7. 85k Ohm. The EJ Custom was designed with Eric Johnson with the aim of making his Les Paul reissue sound more like a Gretsch Country Gentleman. The EJ Custom, which fits as replacement for standard full size humbuckers, has less power and much more treble response