John Mayer's Pedal Board — The Complete Guide
John Mayer uses fewer pedals than most players expect. The core chain is four: a compressor, two overlapping overdrive and boost pedals, and a delay. Everything else on his real board — wah, octave fuzz for specific songs — is incidental. Understanding why those four pedals are those four pedals, in that order, is the key to replicating his sound at any budget.
Boss CS-3 Compression Sustainer — Why It Goes First
Compression is the foundation of Mayer's picking dynamics. The Boss CS-3 (£79) sits before every other pedal in the chain — before the overdrives, before anything. At this position it catches the raw guitar signal and normalises the attack: louder picks get slightly compressed, quieter touches bloom rather than disappear.
Mayer runs the CS-3 with a high ratio and moderate attack time. The "sustain" control is the compression ratio; "attack" controls how quickly the compression responds to transients. The result is picking that feels snappy and immediate — notes start cleanly and then sustain in a slightly compressed way that makes single notes feel full without muddying up.
At this budget, the CS-3 is the right choice. It is not the most transparent compressor available, but at blues-lead settings it adds the attack character that Mayer's technique depends on. Budget alternative: the MXR Dyna Comp (£79) is brighter and slightly more coloured, but works in the same role.
Tube Screamer — The Most Important Pedal in the Chain
The Ibanez Tube Screamer is the most significant pedal in Mayer's signal chain. He has used both the TS808 (original 1970s circuit) and the TS9 (1980s refresh) at various points, but the approach is always the same: gain near zero, output near maximum.
At this setting, neither the TS808 nor the TS9 is adding clipping of its own — it is adding output level, a subtle mid-frequency shaping (the characteristic hump between 500Hz and 1kHz), and a slight harmonic colouring from the JRC4558 op-amp in the circuit. What that does to a valve amp running at volume is push the output transformer into natural compression and harmonic saturation. That is the sound.
The TS808 Reissue (£149) versus the TS9 (£99) at low-gain settings: the TS808 has a slightly more open top end. At Mayer's settings, the difference is subtle. Buy the TS9 at the £500 tier and upgrade to the TS808 later if the distinction matters to you.
The Klon-Style Pedal — The Second Overdrive Layer
After the Tube Screamer, Mayer uses a Klon Centaur or a Klon-style circuit. The original Klon Centaur now sells as a collector's piece at £1,500 or more — the circuit has been accurately reproduced by several manufacturers and there is no sonic reason to buy the original.
The function of the Klon in Mayer's chain is different from the Tube Screamer's. Where the TS808 adds warmth and mid-frequency body, the Klon adds transparency and definition — it tightens the low-mid response and articulates the attack without adding the TS's characteristic colour. Together, the two pedals produce a gain stack that is warmer than either alone and more articulate than the TS by itself.
At the £500 tier, skip this pedal entirely. The TS9 alone into the Blues Junior is the primary tone. Add the Klon-style pedal at the £1,000 tier. The best value options: Ehx Soul Food (£59), Wampler Tumnus Deluxe (£179), or Archer Ikon (£159).
Delay — Adding Space Without Crowding the Notes
Mayer's delay is almost always set to a dotted-eighth value — a technique where the repeats fall on the off-beats of a triplet grid. It adds rhythmic dimension to single-note phrases without creating the crowding that a straight eighth-note delay produces at the same tempo.
His preferred delay units change by era and context: the TC Electronic Flashback (£99) does dotted-eighth accurately and includes tap tempo. The Strymon Timeline (£469) is his higher-end choice. At the £500 tier, the Flashback covers all functional requirements.
Settings: delay time set to dotted eighth (use the tap tempo with the LED as a guide), mix at approximately 30%, feedback at 2–3 repeats. Run it in the effects loop if your amp has one — behind the preamp — so the repeats are clean copies of the amp's output rather than additional gain stages through the front end.
Sweet Spot Build
John Mayer £500 Rig — ~£477
- GuitarSquier Classic Vibe 60s Stratocaster
- OverdriveJoyo Vintage Overdrive
- AmpBoss Katana 50 MkII