The JR "Daemonum" Signature Set from EMG is a pickup combo three years in the making. Slipknot guitarist Jim Root is a longtime user of the EMG 81/60 combo. After trying various prototypes, he was inspired by a set of modified Retro Active pickups to tailor his tone. He settled on a set that gave him everything he loved from the 81/60 with the added benefits and versatility of the Retro Active design. 

Unlike traditional open-coil pickups, both the bridge and neck pickup utilize stud poles. The fingerboard pickup uses ceramic studs to give it a clean high-end percussive tone. The bridge pickup has black steel poles and features a ceramic magnet, similar to the EMG 81. Both pickups feature custom Retro Active preamps exclusive to the Root set.