John Mayer — £500 · Sweet Spot Tone

• On the Boss Katana 50 MkII: use the Brown channel — the closest model to a Marshall-voiced preamp at this price. Set character to 8, gain to 5. For Mayer's lead volume jump, use the Boost mode rather than adding a separate boost pedal.
• Set the Tube Screamer with gain near zero, volume boosted — it pushes the amp, not adds distortion
• Use neck and middle pickup positions for cleans
• Let your pick attack do the work — Mayer controls dynamics with his hands
• Keep the amp clean and loud enough to have natural warmth
• Roll back guitar volume to 7–8 for ultra-clean tones
• The Klon Centaur's blend between clean and driven signal means you always hear the raw guitar underneath — unlike a TS, it doesn't alter the fundamental tone. Use this with the Twin Reverb's full clean headroom
• Single coils into a Twin Reverb: the amp responds to pick attack variation more than any other amp type. The difference between barely touching the string and digging in hard is the full clean-to-saturated range — there is no gain knob doing this. It is 100% technique

• ✗Setting the Tube Screamer gain above 5 into a clean amp — at high gain settings the TS becomes a distortion pedal that colours the tone heavily. Below 4, it's a boost and focus pedal. Single coils into a TS above 5 gets nasal and harsh
• ✗Placing a high-ratio compressor before a drive pedal — heavy compression removes the pick attack variation that the drive pedal responds to. The result is a flat, lifeless driven tone that has no feel
• ✗Running the tone knob at 10 the entire time — the tone control on a Strat is an expressive tool. Rolling it back changes the character of the sound in ways that affect how you phrase.
• ✗Setting bass too high on a Fender spring reverb amp — at high bass settings the reverb tank produces a "booming" quality that muddies the tone. Start with bass at 4-5.
• ✗Setting the boost level too high relative to the base tone — a boost for solos should raise the presence of the guitar, not cause a volume jump that overwhelms the mix. Level matching matters.

If you like John Mayer's tone, these players use a similar approach — same gear philosophy, comparable sound characteristics.