I have owned and currently own several different sealed and ported subs (like most on this forum). I DO agree that a properly executed ported sub can sound just as “tight” as a sealed. However I do find it confusing that almost every reputable brand, Hsu, Svs, Psa, etc. still pushes the “if you’re looking for a sub for music= sealed, sub for theater= ported” instructions. I think it can make things much more confusing, especially to newer users. If the ported counterparts can actually sound just as good with music, albeit with higher output capabilities then their sealed brothers...then wouldn’t it be a better idea to instruct, if at all possible to choose ported, unless you don’t have the space..then settle for sealed?