Well right now i'm dealing with my Polk Audio PSW250 in my second home theater setup since I just built my first DIY subwoofer which came out pretty good. I had an extra EQ laying around from about 1992 so I decided i'll hook it up to the subwoofer. It gets the freq. 30, 60, and 120 for the subwoofer, and my HK recievers seems to give the sub signals from about 120Hz or so... but I guess it always varies. Now there are 5 bars till it hits the top. The 30 is on the 5th bar up, the 60 is on the 3rd bar while the 120 remains at -1 since it came in way too strong and it always has (must be a downfall of a Polk sub. ) Now do you guys thing this will be a definant improvement on movies and such or is it better just to leave it? It seems like it gives a bit more kick now when I hooked it up, probably since I increase the 30Hz and 60Hz higher. This subwoofers freq. responce is supposed to be down to like 28Hz so I see no point in getting a EQ for a subwoofer as this thing doesn't go much lower than the EQ. Any suggestions/ ideas?