Hallo,
as a late xmas present attached is a nice and cheap distortion based on an allpass filter. The idea comes from a DAFx paper by Jussi Pekonen titled "Coefficient Modulated Allpass Filter as Distortion Effect".
Sounds pretty cool if you play the demo samples from that paper's page at: http://www.acoustics.hut.fi/~jpekonen/Papers/dafx08/
Frank Barknecht Do You RjDj.me? _ ______footils.org__