The signal from the guitar (usually one of the main guitars "EVO" or "FLO III") goes into either the Morley Bad Horsie or Dunlop 95q wah pedal. From there, it goes directly into the Ibanez Jemini twin distortion pedal, and then to the Digitech Whammy DT. From the output of the Whammy, the signal heads into the input of the Carvin Legacy amplifier head. Out of the effects loop of the Legacy, the signal heads directly into the Axe-Fx II XL, where it is split into stereo and the effects are applied (and controlled via the MFC-101 foot controller). Out of the output of the Axe-Fx, one signal is sent back to the original Legacy head return, and a second is sent to a second Carvin Legacy head return, bypassing the preamp stage completely and acting as a slave power amp. Vai utilizes his stereo setup on effects like delay, where he sets up two separate delay times (one slower and one faster) and allows them to alternate back and forth. The signal is then sent from the amp to the 4x12 Carvin Legacy speaker cabinets loaded with Celestion Vintage 30 speakers. Vai uses AKG microphones to mic his amps, and uses a separate Carvin power amp to power a direct guitar monitor cabinet instead of relying on the PA.