Originally Posted by luke81

In my experience with the L7 it is a totally different sub in a sealed box vs a ported box, much more than most other woofers. In the ported enclosure they get quite loud and boomy but the SQ is pretty bad, and in sealed the SQ is actually pretty good but the output is almost all lost. The type R subs have decent output and SQ in either enclosure, but in this case I'd prefer the R's in a ported enclosure.