Tone library / Rupam Islam & Fossils / Acid

Acid amp settings — Stranger C20

The Rupam Islam & Fossils guitar tone for “Acid”, dialed in for a Stranger C20 with a Ibanez GIO GRG170DX. Studio version, Fossils, Vol. 2 (2004)

Original rig

Allan Ao / Deep Ghosh (Fossils): Ibanez RG series humbucker guitars, Marshall JCM900 / high-gain British stack, Boss DS-1 / overdrive boost

Aggressive mid-heavy Bangla rock high-gain crunch with tight low-end and biting upper mids
Amp settings — Stranger C20
CHANNELOverdrive Channel (Boost switch ON)BOOSTon
GAIN 8 BASS 6 MID 7 TREBLE 7 MASTER 5
KnobSetting (0–10)
Gain8
Bass6
Mid7
Treble7
Master5
Don’t have a Stranger C20? Match your own rig →
Guitar
PICKUPbridge TONE10 VOLUME10
Signal chain

01Boss DS-1 Distortion

RECOMMENDED — not currently owned; will give you the exact focused Fossils lead/rhythm punch

Tone 5 · Level 7 · Dist 8
Why these settings

The Stranger C20 is a compact solid-state combo with a 3-band EQ and onboard overdrive switch, but it lacks the tube saturation and cabinet body of a cranked Marshall stack. Push the C20's Overdrive/Gain control to 8 and keep the Mid at 7 to capture the signature punchy mid-forward Fossils rhythm bite. If you add an external high-gain distortion pedal like a Boss DS-1 or Rat later, switch the C20 to clean and drop gain to 2.

PRO TIPDig in with hard, precise palm muting near the bridge saddle on your Ibanez GRG170DX to keep the low strings punchy and tight through the small solid-state speaker.

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These settings are for a Stranger C20. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.

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