the center-cut algorithm
Actually it works pretty well. I can't make a preference section so I would have to add 2 more items in the Available DSP list, and the crossover frequency wouldn't be configurable. I'll see about it when I get time.
Why can't you create a preferences page?
The forum is still having issues with links. With IE7 it downloads as "download.php". Once downloaded, I opened it with 7-Zip. Alternately, the extension can be renamed to .rar and opened.