Clean Tone

Parabola

TOOL

BassProgressive metal / alternative metal1990s–2020s (recorded around 2000s–2010s; “Parabola” originally released 2001)

Original Gear

BassWal MKII 4‑string (main studio/live bass); Music Man StingRay (used on “Parabola” likely, as part of Fear Inoculum era)

AmpGallien‑Krueger 2001RB heads (clean and dirty), Mesa/Boogie cabinets

PickupsWal active multicoil humbucker pickups; StingRay HH with 12‑volt preamp

Amp Settings

gain0

bass6.5

mid6

treble5.5

presence5

compression4

Effects & Signal Chain

No effects used for this tone

Notes

Signal is split into clean and dirty channels; clean into one GK head, dirty into another with effects; cabinets include Mesa Boogie 8×10 and 4×10 for tonal blending

Tone Character(4)

mid‑focused clarityblend of clean and dirty signalspunchy low end with defined highstextural depth via effects blending

Difficulty

The bass part in “Parabola” demands precise rhythmic control, tone blending via dual‑amp setup, and integration of effects, placing it at a hard (4) difficulty level.

Sources

Justin Chancellor (Wikipedia) – Equipment Tool's Justin Chancellor Rig Rundown Gear Tour – Premier Guitar

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