Designed to blend modern sensibility with the sound of tube amp trem circuits from the '60s, the SolidGoldFX Stutterbox provides all-analog tap tremolo with extended versatility and simplicity. With four separate ways to set get the perfect trem speed, including the speed knob, tap, and the multiplier switch, as well as textural variety built through selectable waveform settings and eight modes built using special rhythmic patterns and accents, the SolidGold FX Stutterbox is as comprehensive of a tremolo as you're going to get.