i like my sealed better than ported. my application only. I have heard a few setups of r's sealed that are quite unimpressive...then again I have heard quite a few r's ported that are unimpressive.
I just like mine sealed, I went through 2 boxes, one tuned to 35hz (i had too much port area so the sub wouldn't fit, I jimmy rigged it and it was too peaky) another I built 1.25 cu ft tuned to 36hz and it was loud for 1 10...but still toooooo peaky. Didn't really sound that great. Then I tried sealed...wow, huge difference, definetly more of a DD setup for me. I dunno, my next plan is to do 3 10" r's, just because of space requirements. I only have about 12"x12"x34" to work with.
I just like how the r's sound sealed...they are MUCH louder ported (you can definetly tell the ~3 decibles) but the SQ goes down the tube.
type r sealed=teh win...for me
i messed around w/ several enclosures
then again i had a pair of 15" type r's that was sealed and it wasn't half as loud nor did sound as good as my pair of 12" type r's ported to 32 hz...in the same car/same amp..hhmmmmm I guess it's install dependent!!! //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif