MXR Smart Gate
Three selectable noise reduction ranges. Reacts gradually to long, sustained notes and quickly to short, syncopated notes. Fast attack time preserves picking transients and harmonic overtones. The MXR Smart Gate is powered by one 9-volt battery (remove bottom plate to install), a 9-volt AC adapter such as the Dunlop ECB003/ECB003E, or a DC Brick™ power supply.