Per Musician magazine (1983) and U2 magazine (Vol 7 / May 1983)
The Edge uses a Fender Stratocaster or a Gibson Explorer through
a vintage Vox AC30 amp with a Memory Man echo "which is a real budget echo, but it works really well; it's functional and
uncomplicated." He likes "very heavy" strings, ranging from .011 or .012 gauge up to .056. "My Explorer isn't one of the vintage
'58s, it's more like a '76, but it's great in that it has a nice top end without that extra raunch and distortion that a lot
of players like in a Les Paul; it's like a compromise between a Les Paul and a Strat." He admits to occasionally using a Les
Paul in the studio, as well as an Epiphone steel guitar he picked up at Gruhn Guitars in Nashville. "It helps give an 'American'
feel to "Surrender",' on the new album. The Vox amps are like the original Beatles amps, with the original box speakers
-- little 12-inchers with a very gutsy middle sound." The Edge is partial to Roland's Chorus 120 amps, because of their "tough,
Per "U2 by U2" (published in September of 2006):
... when it came to 1983's "War" album, The Edge wanted more direct sounds and
backed off on the Echo. 'U2 by U2' book also mentions The Edge using a Fender Amp to get
the tones on "Sunday Bloody Sunday".