John Martyn

John Martyn used a Korg SDD-1000 when he accidentally damaged his Korg SDD-3000, as noted on the Official John Martyn Website.

The SDD3000 proved troublesome and were replaced by one and then two ALESIS QUADRAVERB GT multi effect and digital delay units (not with Hank Marvin preset I assume). These were mounted in a 19” rack flight cased config and placed onto top of the JC120 amp.

An Echoplex EP-3 sits atop the amp just behind him.

The Echoplex tape delay’s were swapped for a Korg SDD3000 digital delay. This had presets that could call up settings for specific numbers and a simple sampling/looper function that is rather short. Initially the SDD3000 was placed on the floor by the mic stand and this caused major problems when he stepped on it! He then mounted it in a 19” rack frame and flight case and put it on top of his amp.

John Martyn is one of the early artists to use the Echoplex as a fundamental part of his sound, and unusually, he used it extensively with acoustic guitar. He combined echo with fuzz, wah, and a phase shifter, creating unique sonic landscapes driven by rhythm. Martyn used EP-1 and EP-2 tube Echoplexes at different times during his career. Listen to "Outside In" or "Solid Air" for notable uses of this effect with Martyn's unique guitar style.

One of Martyn's Echoplex units was sold in an auction in 2024, according to BBC.