Gurus Amps Sinusoid

The Gurus Amps Sinusoid is a tube-driven analog reverb and vibrato pedal, modeled on the 1963 Vibroverb circuit. It combines two effects in one box: an optical tremolo and a small tank with real springs, both driven by a tube. The two effects can be controlled separately through the two footswitches.¹

What It Does

The Sinusoid puts two classic amp-style effects into a single pedal. The reverb side uses a small tank with real springs, driven by a tube, rather than a digital simulation. The vibrato side is an optical tremolo, also driven by a tube. Because the circuit is fully analog and modeled on the 1963 Vibroverb, it aims to reproduce the character of that amp's reverb and tremolo in pedal form.¹

The two effects can be used together or separately, and each has its own footswitch, so a player can engage or bypass reverb and vibrato independently mid-performance.¹

For comparison, players looking at standalone units can see reverb pedals, vibrato pedals, and tremolo pedals on the site.

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