John Frusciante’s Boss DS-2 Turbo Distortion
This has been one of the longest-running pedals in John’s arsenal. The first time it was mentioned by John is all the way back in 1991, around the time of the Blood Sugar Sex Magic studio sessions, and ever since then, it has been used extensively on pretty much all of the albums John did with the Peppers.
I have an Ibanez wah-wah pedal, because it has a wider range than the others. I use a Fuzzface and a Boss distortion pedal, and an MXR phase shifter, and that’s about it. [Guitar (UK), February 1991]
(mainly in reference to ‘The Empyrean’ solo album:) I use the Boss Turbo Distortion pretty regularly, and an Electro-Harmonix English Muff’n tube fuzz, which has really extreme EQ and a big, thick, meaty sound. [Vintage Guitar (USA), April 2009]