The Edge: Gretsch Country Gentleman (walnut finish)
Adam: Gibson RD Artist bass (natural finish) / Aguilar cabinets (Aguilar amp too, me thinks)
Larry: Yamaha Oak Custom drum kit (silver sparkle finish)
A little bit of information on the RD Artist bass:
http://www.flyguitars.com/gibson/bass/RDartist.php
Letterman even went up to Adam after "Magnificent" and said "I can feel that in my chest", as he went over to greet Adam and the rest of U2.
Has Adam used a Gibson RD Artist before? Yep. He's had one, as least, since the Achtung Baby sessions.






