Originally Posted by bass addict
Comparing similar driver and watts the ported will give more output around the tuning frequency. Some interpret this as more punch as a majority of your LFE is recorded around this tune; generally 20ish hz, give or take.
The ported sub usually tends to be considerably larger as well. There are no free lunches. I spent considerably time modeling ported and sealed subs and there is no question that ported subs using the same driver had more output in the 20-30hz range or so, but this came at the expense of needing a much larger box (like almost twice the size vs sealed).
I had the choice of either building two larger ported enclosures or four sealed enclosures that were smaller. Output wise, when I modeled the four smaller sealed boxes against the larger ported ones, I was not giving up much at all and clearly I get a boost with having four sources in my big ass room vs only two sources.
So there are a variety of factors to consider, but if you have the space and WAF factor is not a concern, I say go ported. If you are dealing with WAF and space issues, sealed is often easier to place and you may end up being able to place more smaller sealed enclosures which opens up some options vs one or two large ported boxes.