According to Gossard's guitar tech, "We use different pedals to achieve different amounts of distortion and overdrive: a DOD graphic eq pedal that boosts the signal and drives the amps' preamp sections harder, a Boss Hyperfuzz…" Full article [here.](http://www.guitarfxdepot.com/rigs/stone-gossard-pearl-jam-guitar-rig/)more
Picture taken at the mondo generator show in Cagliari on 20/09/2016, this was nick's pedalboard, featuring a boss hyperfuzz 2 constantly on duty, and a Dr.No Black Magic Bass Distortion only to boost some solos and general feedback. On the right, a classic boss chromatic tuner with an unmistakable DWARVES sticker on itmore
Highly Desired for a reason, it has 2 very usable, very different fuzz tones, and a clean boost. Most likely you will be tempted to crank the gain, but you may find that lower gain can actually sound heavier. Highly recommended.
Note- The Behringer clone is incredibly comparable, and is a cheap, useful buy if you want to know if you want to commit to the real deal, it sold me.
I use this amazing pedal to recreate the 60's psychedelic octavia fuzz tones. Sometimes I use an overdrive or distortion pedal to boost the gain of the fuzz, that increase the colors of the sound. Very usefull to play stoner rock, alt rock or 60's stuff.