Tom Morello — £500 · Sweet Spot Tone

• Kill switch: wire a normally-open momentary switch to kill the guitar signal — creates machine-gun stutter
• Toggle switch between pickups creates a tremolo effect when flipped rhythmically
• DigiTech Whammy: set to 2 octaves up for the screaming "Killing In The Name" effect
• DOD EQ as a boost: cut bass and treble, boost 1–2kHz by 6dB before solos
• Phase 90 slow rate adds subtle movement to rhythm parts without being obvious
• Whammy bar as a tremolo arm: slow vibrato throughout melodic sections
• Guitar volume knob as swell effect: attack silent, release the string, turn up the volume
• Hard, consistent downpicking for rhythm parts — the aggression is in the attack

• ✗Leaving the wah pedal engaged but stationary between rocking it — a cocked wah (fixed position, not moving) acts as a midrange filter that changes the core tone. Either rock it expressively or bypass it completely; a cocked wah changes the sound in ways that are often unintended
• ✗Neglecting to adjust a floating bridge when changing string gauges or tuning — a Floyd Rose or floating bridge requires re-balancing the spring tension any time the string setup changes.
• ✗Using a high-gain distortion pedal instead of amp gain — British crunch amps have a specific harmonic character when driven from their own gain stage. A pedal changes this character.
• ✗Clean amp at too low a volume — even a clean amp provides warmth and tonal character that the pedal sits in. An amp at minimum volume has no character for the pedal to interact with.
• ✗Moving the wah too fast — wah is a filter effect that needs time to sweep through its range musically. Fast rocking produces a quacking sound; musical use is slower and more deliberate.
• ✗Ignoring down-tuning — trying to achieve dropped-tuning riff character at standard pitch produces a thinner, less aggressive result regardless of EQ.
• ✗Running gain at maximum — above 8 on most high-gain channels, palm mutes become indistinct and individual notes blur. The right amount of gain is the minimum for the target saturation.

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