Tone library / Pink Floyd / Comfortably numb

Comfortably numb amp settings — Valeton GP-100

The Pink Floyd guitar tone for “Comfortably numb”, dialed in for a Valeton GP-100 with a Ibanez GIO GRG170DX. Studio version outro solo, The Wall (1979)

Original rig

Fender 'Black Strat' (DiMarzio FS-1 bridge pickup) -> MXR Dyna Comp -> EHX 'Ram's Head' Big Muff Pi -> Electric Mistress/Yamaha RA-200 rotary -> 100W Hiwatt DR103 / Alembic F-2B preamp -> WEM 4x12 Starfinder

Singing, violin-like fuzz sustain with slight rotary modulation and stereo delay
Amp settings — Valeton GP-100
CHANNELHiwatt DR103 Clean model (UK 100 Clean) + 4x12 Fane Cab IRBRIGHTonBOOSToff
GAIN 2 BASS 6 MID 5 TREBLE 5 PRESENCE 6 REVERB 3 MASTER 7
KnobSetting (0–10)
Gain2
Bass6
Mid5
Treble5
Presence6
Reverb3
Master7
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Guitar
PICKUPbridge TONE9 VOLUME10
Signal chain

01Comp Block (Dyna Comp / Red Comp)

Placed first to smooth pick attack and feed the fuzz

Sustain 4 · Level 7

02Dist Block (Muff Fuzz / Big Muff model)

Primary dirt source — amp gain stays low to prevent mud

Sustain 6 · Tone 4 · Volume 6

03Mod Block (Flanger / Rotary model)

Subtle movement mimicking the Yamaha RA-200 rotating cab

Rate 2 · Depth 3 · Manual 5

04Delay Block (Analog / Digital Delay)

Set to approx 450ms-480ms quarter/dotted note repeat

Time 5 · Feedback 4 · Mix 3
Why these settings

Gilmour used a clean, high-headroom Hiwatt DR103 as a pedal platform for the Ram's Head Big Muff, so the GP-100 amp gain must remain low at 2 with the Clean Hiwatt model. Because your Ibanez GRG170DX has hotter, warmer humbuckers compared to Gilmour's single-coil DiMarzio FS-1 Strat, the fuzz tone is rolled back slightly to 4 and guitar volume is full up to avoid muddy lows. The subtle flanger block replicates the Yamaha RA-200 rotating speaker mixed under the main studio track.

PRO TIPPick with the edge of a heavy nylon pick close to the bridge for harmonic squeals on the high bends, letting your index and thumb flesh gently graze the string right after striking for singing pinch overtones.

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