I sold my house when I changed jobs and moved away. . . By sheer luck the house I have now does not suffer from the same ailment.
I sure wanted to sell it though mostly because of the problems I had with it. However given more time I am sure I would have found a solution more suitable than...
seems like you have tamed your house's 80hz bump. . . My last house had such a huge bump around 50-80hz that I finally sold the house. . . Even with EQ if I cut the bump and boosted the 20-30hz area I found the bump came back. In oder for me to get real 20hz bass loud enough to hear that 50hz...