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Rebecca Dirks is On Location at Tinley Park, IL, where she goes onstage and checks out John Mayer's current live setup with the help of legendary guitar tech Rene Martinez (Stevie Ray Vaughan, Prince, Mick Jones).
In this segment, Rene walks us through John's amps (Dumble Steel Stringer, Two-Rock John Mayer Signature, and Fender Bassman), his cabinets (Alessandro 2x12s with Celestions), his effects (including Eventide TimeFactor, a Boss GE-7 Equalizer, an Ibanez TS-10 Tube Screamer Classic, a Roger Linn AdrenaLinn III Beat-Synced Filter Effects Processor, a Korg Toneworks G4 Rotary Speaker Simulator, a Klon Centaur Professional Overdrive, a small Analog Man Comprossor, an original Marshall Bluesbreaker, a Keeley Electronics Katana Clean Boost, a MXR M-108 10-band EQ, a Roger Linn AdrenaLinn Groove Filter FX-Amp Modeling-Drum Box Processor, a Roger Linn AdrenaLinn II Beat-Synched Filter Effects Processor, a Way Huge Aqua Puss Analog Delay, and an additional Eventide TimeFactor), which is anchored by a custom Bob Bradshaw switching system and controller. Rene even shows off some of Mayer's 40 guitars he currently has on tour.