Gravity amp settings — Headrush Pedalboard

The John Mayer guitar tone for “Gravity”, dialed in for a Headrush Pedalboard with a Fender American Original 60s Stratocaster. Studio version, Continuum (2006) — main signature rhythm and lead tone

Original rig

Fender Stratocaster (neck+middle position), Dumble Steel String Singer, Two-Rock Custom Reverb Signature, Klon Centaur, Ibanez TS10, Way Huge Aqua-Puss

Warm, scooped, touch-sensitive edge-of-breakup clean with blooming low-end and vocal sustain

Amp settings — Headrush Pedalboard

CHANNEL'67 Black Duo (Fender Twin Reverb model) + 2x12 Black Duo IRBRIGHToffBOOSToff

Knob	Setting (0–10)
Gain	4
Bass	6
Mid	4
Treble	6
Presence	5
Reverb	3
Master	7

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Guitar

PICKUPneck+middle TONE9 VOLUME9

Signal chain

01K-Drive (Klon Centaur model)

Clean boost / front-end fattener into the amp model

Gain 2 · Tone 5 · Level 8

02Green JRC (TS-style model)

Engage for added vocal mid-push during fills and the solo

Drive 3 · Tone 4 · Level 7

03Analog Delay (Aqua-Puss style)

Slapback/short ambient space (approx 120ms)

Time 3 · Feedback 2 · Mix 3

04Spring Reverb

Warm, airy room decay

Time 5 · Tone 4 · Mix 4

Why these settings

The Headrush '67 Black Duo captures the glassy headroom and scooped midrange of Mayer's Two-Rock and Dumble platform. Running the K-Drive with high level and low gain adds the signature transparent compression without heavy breakup. Rolling your Strat's volume to 9 cleans up the chime, giving you dynamic headroom when playing with thumb and fingers. Clean fills/solo: engage the Green JRC block for vocal midrange lift.

PRO TIPPlay with the fleshy part of your thumb and fingers rather than a flatpick — the percussive thumb slap on the lower strings and gentle index finger pluck create the dynamic low-end bloom central to this track.

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These settings are for a Headrush Pedalboard. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.

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Song, artist and gear names are used to identify the tone being matched; ToneAdapt is not affiliated with or endorsed by the artists or manufacturers mentioned. Settings are AI-generated starting points — trust your ears.