This is a recreation of a legendary american eq Check the video for audio demo and to know more about it. This is a preset file for Melda Production MAutoDynamicEq, so you must own this product to being able to use this preset. If you don't have it you can purchase a copy in the following link www.pluginboutique.com/product/2-Effects/16-EQ/190-MAutoDynamicEQ In the following video you can see how to import the preset youtube.com/shorts/6oOtgP-RLZc The usage is straight forward, chose the frequency you want to work with then boost or cut. Cutting and boosting at the same time is not supported, this is not a Pultec style eq In this short video you can see the curves differences between my preset and a well known emulation youtube.com/shorts/4fUmEqEgma8