The DiMarzio DP228F Crunch Lab F Spaced Humbucker Pickup is a bridge pickup designed in collaboration between DiMarzio and master guitarist John Petrucci. He used the DP228F Crunch Lab throughout Dream Theater’s tenth studio album, ‘Black Clouds and Silver Linings’. John swears this is the best live and studio sound he has ever had, and the name says it all - ‘crunch’ is what it’s all about with a big, tight sound that’s neither muddy nor thin.
The DiMarzio Crunch Lab’s physical appearance is identical to the D Sonic, but the internal design is a lot different. It’s louder, and the highs have more depth. The lows and mids are more open, and this is crucial for playing chords with body and presence through a gained-out amp. The voicing of the pickup is also different enough to the point that John prefers the Crunch Lab to be installed in almost all of his guitars with the solid bar toward the neck, regardless of the guitar’s tuning.