Tone library / John Mayer / Gravity

Gravity amp settings — Mooer GE150

The John Mayer guitar tone for “Gravity”, dialed in for a Mooer GE150 with a Fender Jazzmaster. Studio version, Continuum (2006)

Original rig

Fender Stratocaster ('The Black One', neck+middle position) into Dumble Steel String Singer / Two-Rock Custom Reverb Signature, Klon Centaur (clean boost), Ibanez TS10, Way Huge Aqua-Puss

Warm, scooped, touch-sensitive edge-of-breakup clean with blooming low-end and vocal sustain
Amp settings — Mooer GE150
CHANNELUS DELUXE CLN (Fender Deluxe Reverb model) + 2x12 US DLX Cab IRBRIGHToffBOOSToff
GAIN 3 BASS 6 MID 4 TREBLE 5 PRESENCE 4 REVERB 3 MASTER 7
KnobSetting (0–10)
Gain3
Bass6
Mid4
Treble5
Presence4
Reverb3
Master7
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Guitar
PICKUPneck+middle TONE8 VOLUME9
Signal chain

01Compressor Block (COMP: Yellow Comp / Optical)

Provides subtle string sustain without squashing the dynamic attack

Sense 3 · Volume 7

02Overdrive Block (DS/OD: Pure Boost / RC Boost model)

Always-on transparent Klon-style boost pushing the front of the amp model

Gain 2 · Tone 5 · Level 7

03Delay Block (DELAY: Analog Delay)

Way Huge Aqua-Puss style subtle slap/ambience (~280ms)

Time 3 · Feedback 2 · Level 3

04Reverb Block (REVERB: Spring Reverb)

Warm, subtle amp-style spring tail

Decay 4 · Tone 5 · Level 3
Why these settings

The Jazzmaster's wide single-coils are slightly broader and brighter than a Stratocaster's scooped in-between notch, so roll the guitar tone knob to 8 and keep the amp treble at 5. Using the Fender Deluxe Reverb clean model with an onboard clean boost replicates Mayer's high-headroom Dumble/Two-Rock front end cleanly on the GE150. For the expressive outro solo, engage a TS-style overdrive block on the unit (or dig in harder with fingers) for added mid-push sustain.

PRO TIPMayer plays the main chords and fills with bare fingers (thumb and index snapping upward) rather than a pick—this softens the transient attack and produces the characteristic fat, percussive low-end thud.

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