With a versatile suite of controls, this pedal can be as simple or complex as you need. Whether you want to lengthen single notes or generate multi-layered soundscapes rich with ambience, this pedal will extend the creative potential of your instrument. Pull off chord voicings you never thought possible, compose transcendent melodies, orchestrate harmonic ensembles, create lively stereo pads, and more - all from a standard MXR housing. This pedal offers a straightforward set of controls to tailor your layers to taste. The mix knob adjusts the wet signal level; in other words, the volume of your layers. The trig knob sets the sensitivity of the pedals auto-trigger function, allowing you to generate new layers according to the intensity of your pick strokes. The Attack knob adjusts the fade-in time of each layer, while the Decay knob sets the fade-out time and frequency drop-off. For a fat subterranean vibe, engage the Sub Oct switch to take one or more of your layers down an octave. Through the program functions, you can adjust additional parameters, including modulation intensity, delay time, diffusion, and more. You can use an off-board switch such as the MXR Split + Tap to trigger your layers, blend setting configurations with the Volume (X) 8 Pedal, and run Stereo Input, Stereo Output, and Dry/Wet Split modes. The pedal always operates with a buffered analog dry signal, mixing in the wet signal when the effect is engaged. This ensures seamless transitions between engaged and bypassed states. Cannot be powered by a battery. Powered by 9 volt AC adaptor (ECB003).