What are some of the best things to do to a box to create maximum efficiency? I've heard of polyfil, resin, etc. I make mostly ported boxes. Just wondering some ways to boost output.
from what i under stand poly fill just makes the sub think its in a bigger box. other than than all i can think of is make non 90 degree corrnorrs like connan does in his boxes
Theres other ways but im not allowed to say but even to use them you need a spl meter to test results to see what helps and hurts. I know one trick that can give you an extra 1 db + but you still need the meter
Another big one I can share is getting your box rise down but that requires building another box after your first one after you measure the rise and its too high...the lower your rise the more power gets to your sub(s)