Comfortably Numb amp settings — FirstAct MA155
The Pink Floyd guitar tone for “Comfortably Numb”, dialed in for a FirstAct MA155 with a Spectrum AIL-95. Studio version, The Wall (1979) — second solo
1969 Fender Stratocaster (DiMarzio FS-1 bridge) → MXR Dyna Comp → EHX Big Muff Pi (Ram's Head) → Hiwatt DR103 Custom 100 (linked channels, near-clean) → WEM 4x12 + Yamaha RA-200 rotary
| Knob | Setting (0–10) |
|---|---|
| Gain | 2 |
| Bass | 6 |
| Mid | 5 |
| Treble | 4 |
| Presence | 0 |
| Reverb | 0 |
| Master | 6 |
01NUX MG-300 Mk2 — Compressor Block
Emulates Dyna Comp — provides front-end squash and sustain boost before fuzz
02NUX MG-300 Mk2 — Big Muff Fuzz Model
Critical: Sustain at noon (5), NOT maxed — preserves note definition and attack shape. Volume hot to push amp. Tone at 7 recovers upper-mid presence.
03NUX MG-300 Mk2 — Delay Block (set to ~400ms)
400-420ms delay time, 2-3 repeats fading. Analog or tape-style delay model preferred if available.
04NUX MG-300 Mk2 — Reverb Block (Hall or Plate)
Large hall or plate reverb, 2-2.5 second decay. Ambient but not washy.
The FirstAct MA155 is a small solid-state practice amp with limited headroom and no channel switching — it cannot replicate Hiwatt clean headroom, so keep amp gain at 2 to stay clean and let the MG-300's Big Muff model do ALL the gain work. Bass raised to 6 (vs Hiwatt's 5) because small speakers lack low-end body. Treble dropped to 4 because the MA155 gets harsh quickly. The Spectrum AIL-95 has lower-output pickups than Gilmour's hot FS-1, so the compressor block is essential to boost the front-end signal into the fuzz.
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These settings are for a FirstAct MA155. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.
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