Seymour Duncan HOLCOMB Mark Holcomb Alpha Neck 7-String Signature Humbucker Pickup - Black7 string Clarity Through the Highest Gain Periphery guitarist Mark Holcomb worked closely with the designers at Seymour Duncan to craft a 7 string neck humbucking pickup that delivered bell like clarity, even when run through an impossibly high gain rig. The Mark Holcomb Signature 7 string Alpha Neck humbucker is the result of their painstaking efforts. Holcomb's goal was to blend the characteristics of a neck humbucker with the tight tones of a