Inspired by the legendary 1963 Fender Vibroverb amplifier, Gurus Amps designed the Sinusoid: the first 100% analog, tube driven Reverb and Vibrato pedal on the market.
Gurus focused on replicating the Vibroverb's Vibrato channel in a pedal format, designing a real tube driven optical tremolo. The Reverb side contains an actual Accutronics spring reverb tank.