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Old 07-09-2015, 05:05 PM
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Default do 45s really matter....

Do 45s in a enclosure really matter or is it a must have when going for spl
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Old 07-09-2015, 05:07 PM
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its easy and it cant hurt is what i always figure
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Old 07-09-2015, 05:12 PM
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The best answer is "sometimes"
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Old 07-09-2015, 05:16 PM
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I say yes. But then again i do them in all my boxes
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Old 07-09-2015, 05:20 PM
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The best answer is "sometimes"
This
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Old 07-09-2015, 05:21 PM
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I figure since it I think there purpose is for better airflow by not allowing the air to be trapped in the corners, it must help or atleast help those trying to achieve massive hair tricks lol
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Old 07-09-2015, 08:21 PM
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When i used to build ductwork id put turning vanes in any square or round back 90* fitting. Honestly did increase air flow a good bit when it came to trying to air balance a system where you have to meet spec cfm. And you pretty much had to eek out every last bit of air.
I could see a benefit in using them in conjunction with 45s in slot port applications.
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Old 07-09-2015, 08:30 PM
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When i used to build ductwork id put turning vanes in any square or round back 90* fitting. Honestly did increase air flow a good bit when it came to trying to air balance a system where you have to meet spec cfm. And you pretty much had to eek out every last bit of air.
I could see a benefit in using them in conjunction with 45s in slot port applications.
bastard, I was going to try this in a test box lol.
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Old 07-09-2015, 09:28 PM
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After i get done building a box i blow all the saw dust out of it with compressed air and I have noticed saw dust gets trapped in the corners if there aren't 45's. Along with what the other guys said, i think it helps smooth the airflow for the port. I mostly do 45's in my boxes now as long as I get paid enough to make them lol. It also strengthens the corners of the box.

Make sure if you do 45's, 45 the inside port corner parallel so your port width is even along the entire length of your port. Or at least round over the inside port corners.
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Old 07-09-2015, 09:37 PM
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Originally Posted by lukeman269 View Post
After i get done building a box i blow all the saw dust out of it with compressed air and I have noticed saw dust gets trapped in the corners if there aren't 45's. Along with what the other guys said, i think it helps smooth the airflow for the port. I mostly do 45's in my boxes now as long as I get paid enough to make them lol. It also strengthens the corners of the box.

Make sure if you do 45's, 45 the inside port corner parallel so your port width is even along the entire length of your port. Or at least round over the inside port corners.
the problem is an air compressor and a subwoofer act to different. It would be sort of like comparing DC to AC. They both move air but the compressor is one way and constant. The subwoofer is push pull and not constant. a sound wave can spin in a corner and create a better transition than a 45 angle could.
dead spots in an enclosure can make it more efficient.you can also create turbulence in the enclosure to create a layer of air that doesn't move between the wall and the other moving air, this will act as a much smoother and less resistant layer than any material ever could. The issue is getting it to all work together.
edit: you also have to realize sometimes moving all the sound and air from an enclosure as you can is not the best way to get air movement and sound outside of the enclosure.
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