"...his (The Edge) oldest delay is the Korg SDD-3000 that has it's own character but is unfortunately no longer in production.
It is analogue and because I can not address it with MIDI commands I have to make those moves myself to bump up the various
preset delay time programmes. That was a bit of a thorn in my side but it has the most pleasant delay tone for Edge, and if
he could do the whole show with that one unit he would. However, the range of material now played by the band demands a variety
of effects sources." [Dallas Schoo]
"Alive and Kicking" by Mark Cunningham [p.179]