Spaceman Effects Delta II Limited Edition BlueFrom Spaceman Effects: "Delta II is a powerful optical harmonic tremolo with extensive tone shaping and an all analog signal path. Its novel dual LFO design enables its pilot to craft a range of harmonic, and traditional tremolo sounds that stagger, hop, buzz, ripple, and swirl with unparalleled variety using its simple control panel. Soar through the sonic scenery as evolving rhythms throb and pulse through your consciousness like stars flickering