Earthquaker Pyramids Stereo Flange PedalPyramids is a Stereo Flanging Device with five presets, eight flanger modes, tap tempo, tap subdivision, a multifunction Modify control, positive and negative Feedback, and a variable Mix control, which is something you dont see on a flanger every day. Built upon the same proprietary DSP architecture as the Avalanche Run, Pyramids delivers convincing jet engine roar, authentic through zero tape style warble, infinite barber pole sweeps, flexible I O