Electronic Audio Experiments CitadelElectronic Audio Experiments Citadel (used, mint condition) The Electronic Audio Experiments Citadel is a preamp style overdrive inspired by the everlasting sounds of British amplifiers from the '60s and '70s. Rather than emulating a specific model, it encompasses our favorite parts of a whole generation of amplifiers including warm piano like cleans, bright clear overdrive, and sizzling lead tones. The Citadel began as a series of experiments on our