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<blockquote data-quote="Phoenix Risen" data-source="post: 7560131" data-attributes="member: 623425">ok, you dont want to have right angles in your enclosure if you can help it at all. the inside surfaces should be as flowing as possible.the reason there is a bend in the port is because it has to be a specific length to get the required tuning. and often times that length is longer than any one wall in the enclosure, and yes the same rule can and will apply to areo and pvc ports (thats the big reason i dont use them..the last enclosure i built for my xxx 15 was 3.5 cubes net and tuned at 36. it was just over 5 cubes gross before all displacement, so ports especially larger ones will take up a lot of space. which means that your 3.9 cubes most likely is going to be too small for a 15 once things are all said and done.i still say the best be is to go with a strong single 12 and call it a day. or even a monster 10...running a smaller sub in the proper sized and tuned enclosure will get greater results than running a larger sub in a cramped poorly designed one.</blockquote>

[QUOTE="Phoenix Risen, post: 7560131, member: 623425"] ok, you dont want to have right angles in your enclosure if you can help it at all. the inside surfaces should be as flowing as possible. the reason there is a bend in the port is because it has to be a specific length to get the required tuning. and often times that length is longer than any one wall in the enclosure, and yes the same rule can and will apply to areo and pvc ports (thats the big reason i dont use them.. the last enclosure i built for my xxx 15 was 3.5 cubes net and tuned at 36. it was just over 5 cubes gross before all displacement, so ports especially larger ones will take up a lot of space. which means that your 3.9 cubes most likely is going to be too small for a 15 once things are all said and done. i still say the best be is to go with a strong single 12 and call it a day. or even a monster 10... running a smaller sub in the proper sized and tuned enclosure will get greater results than running a larger sub in a cramped poorly designed one. [/QUOTE]

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