Originally Posted by markus767
If XT "missed" the peak at 50Hz then it's time to upgrade to XT32.
Well, it seems to me that Audyssey XT does do at least some good here:
I understand that XT32 is much better in the bass, so that's another thing to consider. I usually like to stay about 5 years behind in technology. I save a lot of money that way. Guess that's why I still have an iPhone 3g.
Right now I'm leaning towards first using the 4 remaining Owens Corning 703 panels I have to make two 4" bass traps and mounting them on the back wall behind the couch. I now know i will hit at least one spike in the ETC that way as well. I imagine this will make at least some minimal difference in the bass, and if it doesn't I suppose I can move them somewhere where it does. I have some doubt that I'll be able to put enough bass traps in there to make much of a difference, but I will be interested to see.
Is the general procedure for determining the best place for a bass trap to simply measure the places in the room with the most bass (presumably corners) and then put the bass traps there? Does it need to be any more complicated at my level?
I have tried moving the sub everywhere I can given my room's many restrictions, and every place seems to measure the same or worse as now. In front/right corner the 50 Hz spike goes through the roof, and a dip right after becomes very pronounced. I will also try rerunning Audyssey. My experience is that the results oftentimes vary.
Of course another sub or something like MiniDSP are other things to consider.
Thank you, everyone, for all your help.