From P.G.
For his effects, Satriani uses a Vox Satriani Big Bad Wah Wah, Vox Satriani Ice 9 Overdrive, Vox Satriani Satchurator Distortion, two Vox Satriani Time Machine Delays, a Voodoo Lab Proctavia, a DigiTech Whammy, and a custom true bypass switch built by amp guru Ben Fargen (Fargen Amplification and Sonic Edge Effects).
For his amps, Satch is using three Marshall JVM410 heads that have been converted into working prototypes for a future signature Marshall head that should be released sometime in 2011. The heads are based on a JVM410 format, but each one has been tweaked and altered throughout his current tour.