DOD ENVELOPEFILTER440 Envelope Filter Pedal w/Level and Range ControlsThe DOD 440 from Digitech makes for crystal clear quality out of an Envelope Filter pedal and allows players to emphasize even the most nuanced of pick attacks to add true personality and characteristics of your playing and guitar's sound. The DOD 440 (2014) makes your guitar speak with vowel like sounds, and cry with slow filter sweeps that react to your pick attack. The new addition of the up and down switch lets you choose which part of the sweep