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This is a picture of the rack John used for the 2002 World Tourbulence tour. Among the various units there's a TC electronic M2000 (sixth from bottom to top). Confirmation of this being John's rack can be found in [this diagram from *Guitar Geek*](http://www.guitargeek.com/john-petrucci-dream-theater-guitar-rig-and-gear-setup-2002/) and [at :15s in this video](http://youtu.be/4yUUCRJGdko).more