John Mayer Guitars & Gear: The Black1, the Silver Sky and the Amps Behind the Tone
John Mayer guitars and gear by era: Black1 Strat, PRS Silver Sky, Dumble and Two-Rock amps, pedals and the Sphere setup, each dated and sourced.
John Mayer on stage with a Fender Stratocaster in 2009. Photo: Alex G from Puteaux, France, CC BY 2.0. Source: https://commons.wikimedia.org/wiki/File:John_Mayer_(4776989628).jpg
On October 4, 2023, John Mayer walked onstage at Madison Square Garden with a guitar he had not played live in more than four years: the black 2004 Fender Stratocaster known as the Black One, or BLK1. Guitar.com noted the moment because his PRS Silver Sky had replaced his Strats in his touring rig. That one set list says a lot about John Mayer guitars and gear: the instrument that defined one era sat in the case for years while a different one, designed by Mayer himself, did the touring work.
This guide follows the rig era by era, from his signature Martin acoustic through the Black1 years, the Fender split and the PRS partnership, to the Dead & Company amps he hid in shipping crates at the Sphere. Every item carries a date and a source. Where coverage rests on fan photos, collector listings or a single report, the text says so. Any “currently uses” statement is dated: the most recent coverage we could confirm is from March 2025 (Sphere residency reporting) and December 2025 (the Neural DSP plugin), checked on October 16, 2026.
Eras of the Mayer Rig
Acoustic signature years (2003). Martin announced the OM-28 John Mayer in 2003, limited to 404 guitars, a nod to the Atlanta area code of Mayer’s home at the time. Martin’s own archive post says former artist relations director Dick Boak worked with him on the design, and that Mayer asked for a Low Profile neck, a watch-style diver symbol on the fingerboard and aluminum inlay around the bridge. A slightly scaled-down model, the OMJM, remains in Martin’s lineup.
The Black1 (2004 onward). In October 2004, according to Fender Custom Shop copy reproduced on the fan site Fuzzfaced, Mayer visited the Custom Shop and built his own Stratocaster. Premier Guitar’s 2014 rig feature describes the result as a relic’d Fender Custom Shop ’63 Stratocaster, BLACK1, and names it as the guitar behind “Gravity.” The same Fender copy says the shop later reproduced it “in every detail” as a 2010 Limited Edition, the first time the Custom Shop had replicated one of its own instruments. A fan site and a dealer blog put that run at 83 pieces, a figure we could not confirm on a Fender page.
Around the same period Fender sold Mayer signature Stratocasters. Guitar.com calls him a longtime Fender signature artist until 2014. Fan and dealer pages, and Wikipedia, describe the Black1 as modelled on a Stevie Ray Vaughan Stratocaster, but they do not agree on which one and the Fender and magazine pages we could open do not mention it, so treat it as reported. Mayer has called Stevie Ray Vaughan his all-time favourite guitar player inspiration (Guitar.com, 2023); for the guitars and amps behind that sound, see our Stevie Ray Vaughan gear guide and the Fender Stevie Ray Vaughan Stratocaster page.
The PRS years (2016 onward). Mayer ended his Fender relationship in 2014. His first PRS products were a 100-guitar Private Stock Super Eagle (announced March 11, 2016), and the J-MOD 100 amp (announced January 17, 2017). The Silver Sky arrived in March 2018 and is covered below.
Dead & Company. His touring with the band produced two later pieces of gear: the Dead Spec Silver Sky of 2023 and the hidden-amp setup at the Las Vegas Sphere.
The Rig: John Mayer’s Guitars, Amps & Effects
Guitars
Martin’s first John Mayer signature model, limited to 404 instruments, according to Martin’s own archive post. Martin’s post lists a 25.4-inch scale, a 1 11/16-inch nut and a Low Profile neck.
Built at the Custom Shop in October 2004 per Fender’s own copy as reproduced by Fuzzfaced. Premier Guitar’s 2014 rundown lists it as a relic’d ’63-style Stratocaster used on “Gravity.” Mayer played it at Madison Square Garden on October 4, 2023 after more than four years away from it, per Guitar.com.
The replica run, described by Fender as reproduced “in every detail.” The run size of 83 is attributed to a collector source and is unconfirmed.
A limited run capped at 100 instruments with a 25.375-inch scale, specially wound 58/15 JM treble and bass pickups, a Narrowfield JM middle pickup with coil-tap mini-switches, and a JCF Audio preamp with treble boost, per Premier Guitar’s report of PRS’s announcement. Guitar.com’s 2019 report on a Dead & Company pedalboard photo mentions a triple-humbucker PRS that appeared to be a modified Super Eagle; that identification is Guitar.com’s own and hedged.
Mayer’s signature model, introduced in March 2018. The core USA guitar has an alder body, a bolt-on maple neck with a 7.25-inch-radius rosewood fingerboard, a 25.5-inch scale, three 635JM single-coil pickups, a five-way switch and a PRS steel tremolo, per Guitar.com’s 2018 review. Our PRS Silver Sky guide covers the model line and pricing.
Mayer confirmed the Roxy Pink finish on Instagram in July 2021 after it was first spotted on Jimmy Kimmel Live!, per Guitar.com. Guitar.com said PRS’s site appeared to list it as a permanent colour.
A limited run of 1,000, announced in November 2023, based on the guitar Mayer played on the 2023 Dead & Company summer tour and modified to echo Jerry Garcia’s “Alligator” (see our Jerry Garcia gear guide). It uses a swamp ash body, a hardtail-style Gen III tremolo with a brass block, a brass nut and an Alembic Blaster preamp that adds 3 to 14 dB of boost, per Gearnews and Premier Guitar’s Mod Garage.
Guitar.com reports Mayer played a Hendrix Monterey Strat from his archive at the Crossroads Guitar Festival the week before his October 4, 2023 Madison Square Garden show. This is a one-off appearance, not part of a regular rig.
Amps
Premier Guitar’s 2010 rundown, filmed with tech René Martinez, lists a Dumble head as one of three amps (the page spells it “Steel Stringer”). Neural DSP’s 2025 plugin page says one of its amp models is taken from Mayer’s Dumble Steel String Singer #002. See our Dumble Steel String Singer and Dumble Overdrive Special pages for the amps’ own history.
The second head in the 2010 rundown. Neural DSP describes another of its models as based on a “Two-Rock prototype Signature #83.” Neural DSP calls it a prototype; compare our Two-Rock Classic Reverb Signature page.
Premier Guitar’s 2014 roundup names a Band-Master as the third head, while its 2010 rundown page names a Fender Bassman, so sources differ. The 2014 piece has the three heads running into four open-back Alessandro 2×12 cabinets with various Celestion speakers, with tech René Martinez saying each amp “brings a completely different tone to the table.” Neural DSP’s 2025 plugin also models a 1964 Fender Vibroverb.
A 100-watt single-channel amp with a switchable gain stage and effects loop, four 6L6 power tubes and four 12AX7 preamp tubes, hand-wired in Maryland, per Premier Guitar’s report of PRS’s announcement. It has no built-in reverb.
At the Dead & Company Sphere shows, Mayer’s heads stayed onstage while the speaker cabinets sat in shipping crates on the loading dock, according to JamBase (March 2025). Guitar.com reported in June 2024 that his amps were mic’d up backstage in a crate behind road cases.
Effects
Most effects sat in a custom rack and switching system built by Bob Bradshaw (identified as the CAE mastermind in Premier Guitar’s 2014 roundup). The 2010 list includes a Klon Centaur, an Ibanez TS-10 Tube Screamer, a Keeley Katana Clean Boost, a Way Huge Aqua-Puss, two Eventide TimeFactors, Roger Linn AdrenaLinn units, an original Marshall Bluesbreaker, an MXR 10-band EQ and a Korg Toneworks rotary simulator.
A photo-based Guitar.com report lists a Source Audio True Spring Reverb with tap switch, a Strymon Volante tape delay, a Klon Centaur and TS10, an Electro-Harmonix Q-Tron+ and other Strymon, Dunlop and Electro-Harmonix units. The report relies on a Source Audio Instagram post of the board and a fan account’s signal-chain post, and one pedal is described only as looking like some kind of Tube Screamer.
In March 2025 Mayer recommended this Dumble-style pedal to younger players, per Guitar.com. This is an endorsement, not a documented board position.
The plugin, released December 17, 2025, models three of his amps, plus pedal effects based on a Keeley Katana, an Electro-Harmonix Q-Tron+, a Klon Centaur, a TS-10 and Bluesbreaker, a Way Huge Aqua-Puss and a spring reverb combined with the tremolo circuit of his Victoria Reverberato. It is a modelled recreation of his rig, not a rig rundown.
Gear Table: What Is Confirmed and What Is Not
Era: 2003 — Detail: 404 made, Dick Boak design; Martin archive post
Era: 2004 onward; back on stage October 2023 — Detail: Built at the Custom Shop, October 2004; relic’d ’63-style Strat on “Gravity”
Era: 2010 — Detail: Described by Fender as replicated in every detail; run of 83 from a collector source
Era: 2016 — Detail: 100 made; PRS announcement as reported by Premier Guitar
Era: 2018 to present — Detail: Alder body, 635JM single-coils, 25.5-inch scale
Era: 2023 — Detail: 1,000 made, swamp ash, Alembic Blaster preamp
Era: 2010 rundown; 2025 plugin — Detail: Listed in Premier Guitar rundown; #002 modelled by Neural DSP
Era: mid-2000s to 2014 — Detail: Start year comes from secondary sources only; end date of 2014 per Guitar.com
Era: 2024 to 2025 — Detail: Heads onstage, cabinets in crates, reported by JamBase and Guitar.com
Why He Moved From Fender to PRS
Mayer has described the Silver Sky as “my vision of what a reboot of the electric guitar should look and feel like,” in remarks reported by Guitar.com in October 2023. In an Instagram livestream, reported by Guitar.com in March 2018, he called it a “higher-definition Strat,” saying the frequencies he used to roll off with the tone knob were “just gone.” He also said most Strat tone controls give three real settings: wide open, rolled off and unusably dark, while the Silver Sky’s tone control is more nuanced.
The design details back that up. Guitar.com’s review says early prototypes used 8.5 and 8.25-inch fingerboard radii before Mayer settled on 7.25, that the headstock was redrawn 25 times, and that Smith described the neck as splitting the difference between a ’63 and a ’64 carve. The review also quotes PRS saying that keeping the bridge in contact with the body makes the guitar acoustically louder. Our Silver Sky guide tracks Fender’s 2026 cease-and-desist letters over Stratocaster-style shapes, which it describes as unresolved.
For the Strat itself, our Fender Stratocaster guide covers the original design Mayer was reinterpreting.
How Mayer Describes His Tone Approach
Mayer’s recent remarks are mostly about amps. In March 2025 Guitar.com quoted him on why he keeps tube amps: “I grew up playing tube amps. I grew up feeling the combustion.” It also quoted him saying his style of playing “relies on a certain amount of pushback.” The same piece reports his recommendation of a Dumble-style Universal Audio pedal for younger players.
The same thinking sits behind the Sphere setup. He told JamBase in March 2025: “I need a larger space for soundwaves to come out of a guitar amp.” On the J-MOD 100 he said the result was “a really open and expressive amplifier” (Premier Guitar, 2017).
“I grew up playing tube amps. I grew up feeling the combustion.”
— John Mayer, Guitar.com, March 2025
As of October 16, 2026: What We Can and Cannot Say
Guitar.com reported in October 2023 that the Silver Sky had replaced his Strats in his touring rig, and PRS’s 2023 Dead Spec model came from the guitar he used that summer. In March 2025, reporting from the Sphere residency described tube amps with cabinets offstage. The pedal list in the 2019 and 2025 coverage is tied to specific shows and may have changed. We found no confirmed rig rundown dated 2026, so anything after December 2025 is not documented here.
Frequently Asked Questions
What guitar does John Mayer play?
The PRS Silver Sky, his signature model introduced in March 2018, is the guitar Guitar.com says replaced his Strats on tour. He played his Fender Black1 at Madison Square Garden on October 4, 2023, and PRS made a Dead Spec Silver Sky in 2023 based on his Dead & Company guitar. This describes coverage up to late 2025.
What is the Black1 Strat?
A black Fender Custom Shop Stratocaster Mayer built at the Custom Shop in October 2004, according to Fender copy. Premier Guitar calls it a relic’d ’63 Stratocaster. Fender’s Custom Shop reproduced it as a 2010 limited edition.
What amps does John Mayer use?
Premier Guitar’s 2010 rundown listed a Dumble Steel String Singer, a Two-Rock John Mayer Signature and a Fender Band-Master (the 2010 page itself says Bassman). PRS made him the J-MOD 100 in 2017. At the Sphere in 2025 his amp heads were onstage with the cabinets in crates offstage, JamBase reported.
Why did John Mayer leave Fender?
Guitar.com says Mayer was a Fender signature artist until 2014, when he moved to PRS. Of working with PRS he has said, “I get to call the guy whose name is on the guitar and we get to build stuff together.” We found no Fender statement explaining the split in the sources we could open.
Which pedals does John Mayer use?
The documented list changes by year. In 2010 it included a Klon Centaur, Ibanez TS-10, Keeley Katana and several Eventide and AdrenaLinn units. A 2019 photo-based report added a Source Audio True Spring Reverb and Strymon Volante. In 2025 he publicly recommended the UAFX Enigmatic ’82 pedal.
Image credits
- Universal Audio UAFX Enigmatic ’82 Overdrive Special Amp (2025): GuitarGangsters AI-generated reference illustration, not a photograph.
- PRS J-MOD 100 (2017): GuitarGangsters AI-generated reference illustration, not a photograph.
- Fender Custom Shop Black1 Limited Edition (2010): GuitarGangsters AI-generated reference illustration, not a photograph.
- Top image: Alex G from Puteaux, France, Wikimedia Commons, CC BY 2.0.
- Klon Centaur: ArtBrom, Flickr, CC BY-SA 2.0.
- John Mayer’s Black1: GuitarGangsters AI-generated reference illustration, not a photograph.
- Fender Stratocaster: Lightburst, Wikimedia Commons, CC BY-SA 4.0.
- Dumble Steel String Singer: GuitarGangsters AI-generated reference illustration, not a photograph.
- PRS Silver Sky: GuitarGangsters AI-generated reference illustration, not a photograph.
- Fender Bandmaster: GuitarGangsters AI-generated reference illustration, not a photograph.
- PRS J-MOD 100: GuitarGangsters AI-generated reference illustration, not a photograph.
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