I found this pedal in the closet, and I have not used for such a long time that I cannot remeber how it used to sound. Now, it distorts terribly for all but the lowest of input volumes. So my question is, is my unit broken, or is it just the way these units are (i.e. worthless)? Enclosed is a small sample with the clean sound first, and then with the envelope filter plugged in. Thanks, Eyvind.