Yes, Class A 30W TB. Bright switch off believe it or not. It's too brittle with the Bright on. Turn bright off, the treble up, bass down and mid up some depending on your guitar.
Now, here is the trick for me anyway (same on the Axe II). I realize this means the model I'm using is no longer a "real" AC-30 but I can only get U2 stuff to work with the Negative Feedback ON. It increases the volume and what I describe as fullness of the tone. It gives me some mids and texture that works perfectly for U2 stuff.
Input drive should be between 4.5 and 5 depending on your guitar (mine is a Start with Kinman pups). Remember this song, like many of Edge's songs on a Strat, is in quack position (bridge and middle). You won't get this tone without a Strat in quack.
Adjust EQ to get your Strat closer to the tone. I boost 500 through 2000 hz. Don't add too much high pitch treble. You want mid to high chime, not ice picky highs. Edge's tone has a lot of mids. His old '64 didn't have that brittle high end that many new AC-30s seem to have.
Finally tweak tone with the cab selection. 2x12 Class-A of your liking. I think I blended four of them for this clip. Love the new cab block!
Keep in mind the chime is not just the Axe. There are two other important things to get the chime. First, like Edge, I used a Herdim pick on the side with the dimples hitting the strings. This gives it punch, attack and sharpness. Also, I have .11 gauge strings on my Strat (I believe Edge does the same on many songs). This adds to the chime IMHO. A .09 gauge is not going to chime like an 0.11.
Delay is digital and modulated. For this clip I used the Ambient Stereo for the first time, and love it!