Sir weng, re: rattling ceiling and door, malaking tulong yung great gramma. re: audyssey subwoofer setting, just try adjusting the gain knob an itsy bitsy lower and try audyssey again, malaking tulong sana kung may spl meter ka. When I was not using eq1, may gain knob was about a little pass 8 o'clock lang nag-reregister ako nang 0db sa onkyo 608. With the EQ1, almost the same position and nag-reregister and ultra nang 0.1 db, and sa SPL meter, below 75db sya pero ok lang daw yun sabi sa manual nang eq1 lower daw talaga pag spl meter ang gamit @ c-weight and slow setting nang meter.