I did a search and didn't see what the surrounds on your subs were made of. They look like foam in the pictures, but I am hoping they are rubber like the m-130-16's I bought.
I was also wondering if I ordered them, and made the cabinets, since I don't have any testing equipment, how do I know how much weight to add to the PR to make it sound as it does in your tests? Couldn't one washer too many or too few make a big difference in the F3?
Thank you in advance.
