CleanSweep
Here are a couple of threads that go into a lot of detail.
http://www.carsound.com/cgi-bin/UBB_CGI/ultimatebb.cgi?ubb=get_topic;f=1;t=023201;p=3
http://www.carsound.com/UBB/ultimatebb.php?ubb=get_topic;f=1;t=023393#000000
John Manville of JLAudio has a number of posts so you get info straight from the source.
You'll have to wade through some of the "naysayers" posts though!

Here are a couple of threads that go into a lot of detail.
http://www.carsound.com/cgi-bin/UBB_CGI/ultimatebb.cgi?ubb=get_topic;f=1;t=023201;p=3
http://www.carsound.com/UBB/ultimatebb.php?ubb=get_topic;f=1;t=023393#000000
John Manville of JLAudio has a number of posts so you get info straight from the source.
You'll have to wade through some of the "naysayers" posts though!