[Wayne A. Pflughaupt]

Jeremy,

Judging from the bandwidth settings you mentioned, and seeing their effects on the graphs, I take it you’re using the FBQ, not the BFD?

The first I settled on was a 6.5db gain at 20 Hz with a bandwidth of 3.

From the looks of your graph, it looks like you’re using this filter to raise the level of everything below 40 Hz – i.e. nearly half of the sub’s entire range. Not the best way to use an equalizer. It would be better to instead realign your Target Curve down to ~75-78 dB.

I suggest averaging the blue, green and purple positions. I wouldn’t worry about the orange and gray. Those are crummy viewing positions anyway, let them hear crummy bass, too.

You could then set up a second program on the equalizer and EQ only for the sweet spot, and use that one when you’re viewing or listening to music alone.

I agree with Jean-Pierre’s recommendation to try different placements. Sometimes moving the sub a few feet from the corner down one wall or the other can smooth things out, and still be close enough to it to realize the improved extension and SPL corners give.

Regards,
Wayne