<p>Hey CNO. I uploaded a demo mp3 of the "groaning feedback tone" that the distortion knobs make when everything else is turned all the way down and they are both turned up all the way. It's more of a "screeching whine" IMHO. The first 13 seconds are that noise... then I turned up a couple of harmonizing oscillators and then fiddle with the tone a bit before ending it with the distortion's conspicuous tone. Hope this helps.</p>
<p>http://dl.dropbox.com/u/9129345/distortion_dronelab.mp3
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