Arguably the most famous guitar solo tone ever recorded. Gilmour's tone on the second solo of Comfortably Numb is built on a Big Muff Pi fuzz into a cranked Hiwatt, with delay adding depth and sustain. The Hiwatt provides clean headroom while the Big Muff does the heavy lifting for gain and sustain. The result is a singing, vocal-like lead tone that sustains endlessly.
David Gilmour's Pink Floyd tone decoded: amp settings, Big Muff dials, delay chains, and song settings for Comfortably Numb, Time, and Shine On.
The Comfortably Numb solo tone is one of the most studied in rock history, but most guides get the source wrong. Here's what's actually happening between the Big Muff, the Hiwatt, and Gilmour's technique.
The Animals album tone is darker, more aggressive, and less studied than Comfortably Numb, and it's a different rig. Here's what Gilmour was running in 1977 and how to get there.