[Dent]

On my sub I only have a 0 or 180 degree phase switch so one or the other. I have it set on 0. I tried switching it to 180 degrees and remeasured but it caused two other broad dips to form below the crossover (90 Hz) so I left it at 0. When I am listening to music I leave the response flat and when I listen to movies I just raise the subwoofer level on my receiver about 3 dB or so and everything sounds fine. Maybe I am creating a type of house curve just raising my subwoofer level on the receiver (or I could do the same level boost on the subwoofer gain control itself).

I guess that is a question I have then. Why don't you just make a flat response and then increase the level of the subwoofer over the mains using the receiver sub level control or the actual sub gain control when needed such as when watching movies but when listening to music, decrease the level so that it is flat, which I read that a lot of people do? Isn't this what most people do anyway, i.e. increase the level of the sub 3-4 dB hotter than the mains for watching movies?

I found that with the house curve it might sound fine at a certain volume but when I listened at a louder volume it was too much. I guess if someone always watches movies at a similar volume then that particular house curve would work but I find I am watching movies or listening to music at various volumes depending on who else is watching or who else is in the house at the time.