Under the Bridge amp settings — Blackstar ID:Core 20 V3
The Red Hot Chili Peppers guitar tone for “Under the Bridge”, dialed in for a Blackstar ID:Core 20 V3 with a PRS SE Custom 24. Studio version, Blood Sugar Sex Magik (1991) intro & verse
1966 Fender Jaguar / 1962 Fender Stratocaster into Marshall Major 200W / Marshall Silver Jubilee 2555 with MXR Dyna Comp
| Knob | Setting (0–10) |
|---|---|
| Gain | 3 |
| Reverb | 2 |
| Master | 6 |
01MXR Dyna Comp
RECOMMENDED — not currently owned (essential for the signature percussive snap)
The Blackstar ID:Core 20 V3 uses a single ISF EQ knob rather than standard Bass/Middle/Treble/Presence controls, so set the ISF knob around 3 (counter-clockwise toward American/Fender chime) to mimic Frusciante's glassy top-end. On your PRS SE Custom 24, pull the tone pot up to engage coil-split mode on the neck pickup to emulate the vintage single-coil bite of the original Strat and Jaguar tracks. If you add a compressor pedal later, it will tighten the dynamic thumb-over-neck chord embellishments instantly. Outro heavy chords: switch voice to Super Crunch (gain 6, ISF 7).
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These settings are for a Blackstar ID:Core 20 V3. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.
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