10+ year member
- Mar 12, 2008
Yea, this enclosure is a bit counter-intuitive. Aparently these things love being in like 4 cubes with 4k on tap.With that size box and that much cone area, I’d want to at least double that to 200 sq in . I know it’s easier said then done lol. With the enclosure I did, I wanted 120 sq in but had to settle on 117 to comprise and get the tuning I wanted. You are dealing with an enclosure that is double the size tho lol.
Port area is all about actual displacement. If you have a single 10 with 5mm of xmax, you don't need a big port, even in a huge box. The larger the box, the less port area you end up needing for a given displacement. Since I'm essentially 4x what drivers want and I'm not pushing them to Xmax, my efficient port size is surprisingly small.
I'm just regurgitating what smart people have said to me about this enclosure and these subs. I could be COMPLETELY wrong with the above statements.