We are proud to present the fourth version of our filter classic. Compared to its predecessor the Action Filter 4 is equipped with 1/4" jack in- and outputs beside the RCA connectors. Of course we stayed with the proven concept - that includes your active collaboration on cutoff and resonance knobs, the quality of the filter circuitry as well as its strong construction structure.

Click here to go directly to the Action Filter 4 product page.