Yes...I searched. At the same time I also got a bunch of mixed results to what the subsonic filter should be set at. Ive heard the same as the box frequency, just below the box frequency, 10hz below, and 70% of the box frequency. So my question is....Which is it? My box is tuned to 37hz. Yes...its high //content.invisioncic.com/y282845/emoticons/naughty.gif.94359f346c0f1259df8038d60b41863e.gif.