Posted on 
Jul 01, 2006 09:29 pm Well if you can find one the Electrix Filter Factory which was made for a short while is a great filter. I use mine frequantly with guitar and the rack synths that dont have easily accesable filter set ups.
One on ebay search.ebay.com/electrix-...fsopZ3QQxpufuZx
Here is a link to couple of videos on it. www.electrixpro.com/produ...ory_video3.html
You can Google it and find a lot of other pages for it. The video page will take you to the manufacturers page. It is probably the only filter you will find in that price range that works well.