Not sure why the fact that the poster claims to be from Ireland means that we should trust him/her.
In clip 1, there's some extra distortion or reverb on the bass that isn't in the U2.com clip.
In clip 2, the echo that's supposed to sound like it's a result of the track being recorded in an open space (?) + through a wall or something (?) really sounds like it was created on a computer.
In clip 3, the static sounds 100% added in---
not an incidental result of the taping.
In clip 4, do we really even need to talk about how terribly off-key "bono" is?? Come on, even while singing Bonoglese in the Hansa Ton tapes, he was on-key.