Siren

True pitch vibrato that actually modulates pitch rather than simulating it through phase shifting like Leslie or Univibe effects. The Enchant control ties vibrato intensity to pick attack on a sliding scale—harder picking produces more effect.

Depth (vibrato intensity), Speed (vibrato rate), Mix (wet/dry blend), and Enchant (envelope-responsive vibrato intensity). The Enchant control is the standout feature, making the vibrato respond to playing dynamics for expressive, touch-sensitive modulation.

Unlike Univibe or rotary effects that simulate pitch modulation, the Siren creates actual pitch shifts. Input impedance 500K, output impedance less than 1K. Less than 100mA current draw, 9V DC only. True bypass via 3PDT switches. 4.4 x 2.3 x 1.0 inches.