Grinder Bass OD
Headrush Overdrive

Grinder Bass OD

Inspired by Revalver® Original (Plug-in)

The model Grinder Bass OD is an overdrive pedal designed specifically for electric bass, with the aim of providing controlled saturation without losing definition on low frequencies, ideal for:

  • Rock
  • Funks
  • Blues
  • Fusion

Pedal platform: Great for bass players who want clear overdrive without sacrificing punch.

Defined sound, with full body and dynamic response

It includes Drive, Clarity, and Level controls, designed to shape saturation, transparency, and overall volume.

Control Parameters

Drives%

Control the amount of saturation:

  • Low → light and defined crunch
  • High → intense overdrive, with more harmonics but without dirtying the low frequencies

Ideal for modulating aggression and overdrive character.

Clarity%

Controls the transparency and definition of the sound:

  • Bass → more “pushed” and aggressive
  • High → clearer and more defined sound, with low notes present but distinguishable

Maintains bass punch even with high Drive.

Level%

Control the pedal output volume:

  • Low → low signal
  • High → boost the signal without altering the tone

Useful for balancing the pedal with amplifier or other effects.

Pro Tips

  • Medium Drive + Medium Clarity → full-bodied and defined crunch
  • High Drive + High Clarity → brilliant overdrive without losing punch
  • Level → adjusts output and balances with other effects

Quick Reference

  • Drives (%): Amount of saturation → crunch / overdrive
  • Clarity (%): Transparency → definition and punch of the bass notes
  • Level (%): Output volume → boost without altering tone

Setup Examples

Light/defined crunch

Drive45%
Clarity55%
Level50%

Funk/punchy overdrive

Drive60%
Clarity65%
Level55%

Powerful/aggressive lead

Drive75%
Clarity70%
Level60%

Flea Presets – “Funk Crunch”

Drive50%
Clarity70%
Level55%

Funky and dynamic crunch, with present bass and accentuated punch. Perfect for energetic slaps and grooves.

Geddy Lee Presets – “Progressive Drive”

Drive60%
Clarity65%
Level60%

Full-bodied and defined overdrive, ideal for complex melodic and rhythmic lines. Maintains definition on high and low notes.

Preset John Entwistle – “Rock Lead Bass”

Drive75%
Clarity70%
Level65%

Aggressive and powerful sound, perfect for leads and bass solos in rock contexts. Full bass without muddying the mix.