The Tone Druid + has the all the classic qualities of our original Tone Druid - the sound of rich tube saturation and amp-style breakup tones, with a knob for gain management as well as one for taming the output level. But it goes one step further by adding a 3rd knob for tone control, allowing for more precise tailoring of tones, ideal for sculpting the perfect sound to sit sweetly in a mix.