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The Gurus Sinusoid was inspired by many of the classic American amplifiers from the early ‘60s, including the 1963 Vibroverb. Those who know their music history should immediately recognize the connection. The Vibroverb was one of the first amplifiers to synthesize vibrato and reverb into a single complimentary foil. Not content to merely repeat the same internal circuit configuration, the Sinusoid utilizes an entirely new design that achieves the same results as the Vibroverb, albeit with higher tension and better components.
For the Sinusoid’s reverb technology, Gurus collaborated with Accutronics to implement authentic spring reverb tanks into the pedal’s chassis—making the Sinusoid the world’s first all-analog tube driven reverb-vibrato pedal.