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#1
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External Port
Everyone here has been such a great help, thank you for walking me
through my many, many questions... Hopefully I only have a few more. Has anyone ever built a box with external ports? I was wondering if it sounds different (I'm guessing it does) and if so, how? General Port question: Does it matter if the port bends at all? I was hoping to have either a 45 or 90 degree bend (not a sweep; fairly tight curve) in a 4 inch port. |
#2
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"Mister.Lull" wrote in message oups.com... Everyone here has been such a great help, thank you for walking me through my many, many questions... Hopefully I only have a few more. Has anyone ever built a box with external ports? I was wondering if it sounds different (I'm guessing it does) and if so, how? General Port question: Does it matter if the port bends at all? I was hoping to have either a 45 or 90 degree bend (not a sweep; fairly tight curve) in a 4 inch port. an external port should sound no different, however, if you're talking super-long you might introduce a problem with it being out of phase with the sub... not going to do the math on that today but the potential is there.. There's no problem with 90 degree bends, just be sure the corners are smooth (rounded).. |
#3
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Mister.Lull wrote:
Everyone here has been such a great help, thank you for walking me through my many, many questions... Hopefully I only have a few more. Has anyone ever built a box with external ports? I was wondering if it sounds different (I'm guessing it does) and if so, how? General Port question: Does it matter if the port bends at all? I was hoping to have either a 45 or 90 degree bend (not a sweep; fairly tight curve) in a 4 inch port. For a bent port look into JL Audio's FlexPort (insert registered trademark symbol here) It's a hefty plastic flexible tube available in typical sizes. Another option would be to build the port square, and just sand smooth any turns you make (use filler to get a more rounded finish on the outside portion of the bend) -- Dan Snooks |
#4
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Good to know, I think that it'll be much easier to calculate inside air
space of a box without having to adjust for a port. Especially since I have to adjust the air space every time I calculate the port, which has to be re-calculated every time I adjust the air space... You get the picture. As for the smoothness of the curves, I'll just be using some schedule 40 pvc pipe for the port, which has quite a few options for bends and whatnot; and it's available at any plumbing store (or plumbing department at any home improvement store). Thank you!! Mister.Lull |
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