melodic simplicity and more radio friendly sound when compared to the band's other albums. Track listing Personnel Band members Burton C. Bell − lead vocals (credited as "Resonating Biodroid") Dino Cazares − guitars ("Energized Riff Traumatizer") Christian Olde Wolbers − bass ("Subsonic Assassin"), backing vocals ("Auxiliary Resonator") Raymond Herrera − drums ("Automated Rhythmic Attacker") Others John Anonymous − pre-production Robert Breen − assistant engineer Huey Dee − pre-production Rhys Fulber − producer, keyboards ("Force Activated Keyboards"), programming ("Mechanical Programming") John Bechdel − keyboards ("Live Activated Keyboards"), programming ("Programming Engineered"), add. keyboards ("Additional Keys Generated") (11) Malcolm Springer − arrangements ("Additional Pre-production Arrangements Supported") Jordan Plotnikoff − vocals ("Child's Vox") (1) Billy Sherwood − arrangements ("Harmony Vox Arrangements") (3, 6) B-Real − effects ("Enhancements") (5), vocals ("Auxiliary Vox") (8) Tom Jermann − artistic director George Marino − mastering Mike Plotnikoff − mixing, technical engineer Oscar Ramirez − assistant engineer Paul Silveira − engineer Neil Zlozower − photography Charts Album - Billboard (United States) Singles - Billboard (United States) References Fear Factory albums 2001 albums Concept albums Roadrunner Records albums Albums produced by Rhys Fulber Nu metal albums by American artists