Quote Originally Posted by Woochifer
Are you running the mains at full range? With a subwoofer, you should use the crossover to cut off the mains at roughly either 60 or 80 Hz. The mains should not have a huge effect except right around the crossover point.

If you were running the mains at full range, then the dip might actually come from the main speakers, since they are just as susceptible to room effects as the subwoofer.
I did it all over again. I had my response on fast the first time so I changed to slow. I added all the compensation factors for my spl and guess what I got from 23 hz- 85 hz. Drumm roll please +/- 27 fricken db's. The same as before. The first time I had my mains at full range the second time with them off. From 23hz to 50hz I am +/- 7 db, If I bump it to 20 hz I am still only +/- 8db. My problem is from 51hz to 80hz +/- 20 db's. The biggest dip I have is between 56 hz and 60 hz and if I was to remove those numbers I would be +/- 10 db's. My average db's between 23 and 50hz is 92 db's to 99 dbs. Between 51 and 80hz I get a low of 72dbs and a high of 92 dbs. If I remove 51 hz which is 92db's and the 56hz to 60 range which runs from 72dbs to 79 dbs I can then get an average range between 80 dbs and 90 dbs. Much less then the 92 to 99 db range I was getting between 23 and 50hz. I guess this weekend I will have to try a different location for my sub and then do it all over again. Sigh!