I am using the autosound test cd #101. Tracks 10-98 are 1hz increment bass tracks that play for 30 sec a peice. I have all mains set to small, sub crossed at 80 and am using a B&K ref 50 as my pre/pro. When I run the freq sweep I am doing so in dolby pro logic music 7 mode which is what the pre pro defaults to when I put this disc in. I have a 7.1 system. I then take readings starting at 16hz then 20 then 25 then 30 and so on up until 90. I then use the compensation chart to compensate for the radio shack spl meter which is set to c-weighting and slow. Is this the right way to do a FR chart?? The reason I ask is if this is correct my chart is pretty bad where I would ideally like to keep this sub which is in the front corner of the room. The spot that is flattest is in the rear of the room, but the sub does not sound as impresive there and I hate having the sub in the rear of the room. I know it should not matter but it just does not feel right to me when it is in the rear of the room. Am I doing my FR charts right?