Wow! This pedal sounds fantastic. The Classic Tone of the SDD-3000 Digital Delay, given new life, in compact pedal form. The capabilities are endless! You too can be The Edge! The rack-mounted SDD-3000 which appeared in 1982 was a classic digital delay that dominated the world thanks to its peerless sonic character. The classic delay effect that's central to the guitar sounds in world-class rock bands owe a great deal to the SDD-3000, which has been the driving force behind numerous famous songs over the years.