Originally Posted by OKGeek
Thanks, Marc. I definitely want to chase for duals, may be one-by-one. So choice is really between dual sealed and ported 1801s (may be dual 15v alternatively to get less footprint). So was wandering if sealed may be a better option given port noise issue.
The room is ca 3000ft3, but with openings to the left (balcony) and to the right (kitchen and hall), so total volume may be easily double of that. The MLP just around 10 feet from the subs.
Other people have already said this, but I think it is worth some additional emphasis. The issue with port chuffing has been overblown. All ported subs can be made to chuff at certain frequencies and under certain conditions. For the great majority of ported sub owners, chuffing will never be an audible problem with any normal content. Sine waves are not normal content.
If you want to experience louder bass below about 35Hz, ported subs have a significant advantage over sealed subs. Sealed subs will never chuff, but they also won't give you the same low bass SPL and tactile impact that the larger ported subs will. And, to get equivalent low bass SPL, it may take two sealed subs for every ported sub.
If there are specific sound qualities that you prefer with sealed subs, or if the smaller form factor is a major consideration, then sealed subs could be a very good option for you. But, don't let concern for potential port chuffing issues scare you away from ported subs. There are thousands of ported subs sold every year, in the US alone, and very few listeners report any problems with real world content. And, when they do, it is probably related more to specific room modes, in that particular room and sub placement, than to anything else.
If at all possible, try to go somewhere to listen to a ported sub or two and decide for yourself whether there is something that would prevent you from enjoying the additional low frequency SPL that a ported sub can provide. Or, if you decide that you don't need that much low bass SPL, then sealed subs might be the better choice. But, chuffing concerns shouldn't be part of your decision-making process, in my opinion.