how do i fix this " cancelation "

[john253a]

What size was the port

It may have been 30hz but could be to small

[bdog]

port is in ideal range and im not getting any port noise so thats good . the thing is below 40hz everything shakes windows flap roof goes insane but you just cant hear the bass. so i think it must be either bad box desgin or too much box and roof flex causeing cancelation . Question could me putting the woofers too far in the corners of the box be hurting me?

[Krayzie]

Interesting topic with good info. I'm just now getting into learning some of the less talked about topics like this.