Gravity amp settings — Blackstar Id core 20 V4

The John Mayer guitar tone for “Gravity”, dialed in for a Blackstar Id core 20 V4 with a Squier Classic Vibe 60s Stratocaster. Studio version, Continuum (2006)

Original rig

Fender Stratocaster (SRV Signature / Big Dipper pickups) → Klon Centaur (very low gain) → Two Rock Custom Reverb / Dumble ODS

Crystalline clean with warm low-mids, extremely dynamic and touch-sensitive, subtle compression

Amp settings — Blackstar Id core 20 V4

CHANNELClean Warm voiceBOOSToff

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

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Guitar

PICKUPneck+middle TONE7 VOLUME8

Signal chain

01Klon-style Overdrive (e.g., Mosky Golden Horse, Tone City Bad Horse)

RECOMMENDED — not currently owned. Set gain almost off; this adds subtle compression and harmonic bloom that defines the Gravity tone. Without it, your tone will be thinner and less 'alive'.

Gain 1 · Treble 5 · Output 6

Why these settings

The ID:Core's Clean Warm voice approximates the Two Rock's smooth, un-scooped character better than the brighter Clean voice. ISF should sit around noon to slightly British (1 o'clock) to capture that warm mid presence. Rolling your guitar volume to 8 tames single-coil ice-pick highs—Mayer does this religiously.

PRO TIPThe entire Gravity tone lives in your right hand: use the fleshy part of your thumb and index finger near the neck pickup for the verse, then dig in with a pick closer to the bridge for the chorus swells. The amp shouldn't change—your attack should.

Get this tone on your amp

These settings are for a Blackstar Id core 20 V4. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.

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Blackstar Id core 20 V4 settingsALL SONGS FOR THIS AMP Gravity on other ampsSAME SONG, YOUR AMP John Mayer tonesALL SONGS Squier Classic Vibe 60s Stratocaster tonesSAME GUITAR Tone libraryEVERYTHING

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.