The Ibanez K7 series is a signature series of seven-string guitars used by Korn guitarists[1] James "Munky" Shaffer and Brian "Head" Welch.
The K7 guitars were originally available in two finishes, Firespeak Blue (James "Munky" Shaffer's model), and Blade Gray (Brian "Head" Welch's model).
These guitars are characterized by the deep metallic sound, from the body being made of mahogany that is well suited for Korn's musical style.
In 2007 Ibanez released new versions of Korn's signature series as the Apex.
Although 7-string guitars were not used for recording his debut album Save Me from Myself, Welch had continued to use his original K7s as his exclusive signature guitar, even during his almost eight-year absence from Korn.