DiMarzio DP707 LiquiFire 7 Neck Humbucker (Black With Gold Poles)One thing has stayed consistent throughout John Petrucci's long and successful career: the DiMarzio pickups in his guitars. John has been pushing the envelope of progressive metal since the late eighties, and the DiMarzio LiquiFire 7 Neck Model resulted from our most recent collaboration with John. He used it throughout Dream Theater's tenth studio album, "Black Clouds & Silver Linings". John swears this is the best live and studio sound he has ever