Doepfer

They are made ​​in a demo set frameworks so as to be able to judge the quality of the filter
I did not want to make a demo or hissing noise filter, demos like that there is full internet
if you not find useful demos that I made it is your right, everyone has to judge the usefulness of what is presented
I personnaly I judge demos saturation or noise filter does not show me the musical quality of a filter

good to you