I have used these before: http://www.google.com/products/catalog?oe=utf-8&rls=org.mozilla:en-US:official&client=firefox-a&q=dbx+mic+processor&um=1&ie=UTF-8&tbm=shop&cid=14973979330114512327&sa=X&ei=da5FT6T9BOut0AGqn63rAw&ved=0CFQQ8wIwAw -D From: Jerry Mathis <thebeaver32 at gmail.com>