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Old 16th May 2012, 09:48 PM   #1
Scott L is offline Scott L  United States
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Default ONE INCH thick Sono Tubes

Well it seems like it's almost forgotten, but IMO a sono tube is a very good, quick and easy way to do a sub. A buddy of mine has some Altec 416-8B's in some sono tubes with one inch thick walls. Problem is, I have no idea where to get such an item. Best i could do was to round up some left over tubes, but they only have walls 3/8" thick. Anyone know of a source (United States)
for the good kind (not concrete forms) of sono-tubes?

p.s. I know the obvious answer is to ask said buddy, but they were given to him from a now lost source as well.
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Old 16th May 2012, 10:40 PM   #2
tb46 is offline tb46  United States
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Hi Scott L,

For what it's worth: 3/8" is ample thick enough.

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Old 16th May 2012, 10:54 PM   #3
jimbro is offline jimbro  United States
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I think they come in 2" increments so you could always use 2 sizes and fill the void with sand?
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Old 17th May 2012, 01:02 AM   #4
NEO Dan is offline NEO Dan  United States
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You are looking for concrete form tube

https://www.whitecap.com/locations
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Old 17th May 2012, 04:31 PM   #5
aud1out is offline aud1out  Canada
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Default Layer like plywood

How about stacking/layering the tubes like plywood. Not sure about fit/finish aesthetically.

Using same size (or larger for each additional layer) tube, slit tube for each outer layer lengthwise so you can slide over inner tube(s). Use glue, string to tie together while glue dries, etc. Might have benefits of plywood and CLD.

Doing this layering partially for ends where caps/bases are attached would be useful. Could be done on inside or outside of tube.

Don't now how well each layer would conform to adjacent layer.
Stagger the seam as required.
Been meaning to try it myself.
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Old 17th May 2012, 04:56 PM   #6
pooge is offline pooge  United States
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Quote:
Originally Posted by jimbro View Post
I think they come in 2" increments so you could always use 2 sizes and fill the void with sand?
Or fill with polyurethane expanding foam to make it lighter and help adhere the forms together, if in fact the foam would adhere to the waxy coating on the forms.
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Old 17th May 2012, 07:26 PM   #7
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Quote:
Originally Posted by jimbro View Post
I think they come in 2" increments so you could always use 2 sizes and fill the void with sand?
At Home Depot they have 1/2 increments. In the bin that is marked 10inch, there will also be ones that are 9.5 in and 10.5 inch. So they can telescope together.
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Old 17th May 2012, 11:25 PM   #8
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I used heavy duty PVC pipe. About 3/4" thick and very heavy.
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File Type: jpg sub up small.jpg (48.5 KB, 544 views)
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Old 18th May 2012, 08:51 PM   #9
Scott L is offline Scott L  United States
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Default Very nice !

Quote:
Originally Posted by studiotech View Post
I used heavy duty PVC pipe. About 3/4" thick and very heavy.
They look fantastic ! My only question is, what's the largest size they are available in ? (diameter wise, i mean)
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Old 18th May 2012, 10:10 PM   #10
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Originally Posted by Scott L View Post
They look fantastic ! My only question is, what's the largest size they are available in ? (diameter wise, i mean)
Mine is schedule 80. See this chart:

PVC and CPVC Pipes - Schedule 40 & 80

My piece was not perfectly round, so to make end caps, you will want to oversize them and then go around with a flush cut router bit and the out-of-round won't really matter. If you get really luck, you might be able to find just the right diameter and screw the driver directly to the tube.

Greg
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