Il utilise un peu de tout, mais pour 21st Century Breakdown, il a utilisé une Fender Telecaster '52, une Les Paul Junior 56', une Les Paul "Reissue Sunburst" Standard certainement, une Les Paul Custom Slash Signature et une Les Paul Custom Jimmy Page pour les solos.
Citation:
"I have a Park/Marshall plexi head and two 4x12 cabinet, a '58 Fender Twin, a Victoria Victorilux combo, and an old Gibson Les Paul GA-40 amp and a Gibson GA-19RVT Falcon amp." says Armstrong. "Those old Gibsons spit out a killer raunchy sound-clean, but with a lot of attitude. I used the Falcon on the breakdown parts, because it made the dynamics jump out. I also plugged a '52 Fender Telecaster into a Divided by 13 amp for pretty much the entire record. My '56 Les Paul Junior was typically used with the Park, along with a reissue Les Paul sunburst and a Slash signature Les Paul, and I played the solos with a Jimmy Page signature Les Paul."
Bref, y'a un peu de tout. (Je sais j'ai pas aidé à éclairer ton choix mais voici un début d'indication)