Double You. Double Strength.
1. 8 Doubling Styles: Tight; Loose; Group; Detune; Thick; Octave Up; Octave Down, and Shout
2. Adjustable mix knob for precise control of doubling level
3. Recessed Mic Gain prevents accidental bumps on stage
4. Dedicated on-off footswitch. D1 Also comes with USB connection for updates