Gilmour used a Hiwatt DR103 into WEM cabs. The Big Muff fuzz is essential for that sustained, singing lead tone. Add generous delay and hall reverb.
Signal Chain
Big Muff (Green Russian)→Hiwatt DR103→WEM 4x12→Analog Delay→Hall Reverb→Output
PedalBig Muff (Green Russian)
gain
6
tone
5
level
7
AmpHiwatt DR103
bass
6
gain
4
mids
5
treble
7
presence
6
Cab / IRWEM 4x12
micSM57
mic positioncenter cap
EffectAnalog Delay
mix
4
time380ms
feedback
4
EffectHall Reverb
mix
3
depth
5
Notes
Let the notes breathe — vibrato is everything on this solo. Do not choke the sustain.