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Old 26th March 2009, 03:57 AM   #1
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Default Noob - 55 gallon fiber tube sub...

Forgive me, I'm new here..

I've seen posts regarding sonotube subs, and I have a related question. I have access to free 55 gallon fiber tubes, and was wondering if these would be feasible for the sonotube-style design. What (easy) program would be best to find a driver for this size tube? Any help for "the noob"? Thanks in advance!
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Old 26th March 2009, 05:31 AM   #2
GM is offline GM  United States
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Don't see why not, so since 55 gal = ~7.352431 ft^3 (208.2 L), it's just a matter of trying different drivers in this box volume (Vb) - ~10% to allow for driver, bracing, vent (if used) losses.

'Easy' is relative, but WinISD Pro and Unibox are popular freeware around here, though the latter requires Excel 2k or later.

GM
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Old 26th March 2009, 05:31 AM   #3
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Pictures?

Up here we call them 45 gallon drums (even thou -- it seems -- they are only 44 gallons)

I imagine they could be pretty good.

You are looking for driver(s) that work in 200 litres (just over 7 ft^3)

4 CSS SDX10 vented or 1 or 2 SDX15 sealed would work (with 2 SDX15 i'd look for 2 drums).

dave
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Old 26th March 2009, 06:55 AM   #4
dangus is offline dangus  Canada
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An Eminence Omega Pro 18" could work in that volume, if you want high efficiency and not extremely low bass. Perfect for parties in locations where everything has to be carried in by hand.
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Old 26th March 2009, 05:43 PM   #5
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Thank you for your responses (and keep them coming).

If I could add a variable to the mix.. Perhaps a (ahem) "budget-minded" driver option?
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Old 26th March 2009, 06:10 PM   #6
GM is offline GM  United States
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Define 'budget'.

GM
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Old 30th March 2009, 07:09 PM   #7
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Quote:
Originally posted by GM
Define 'budget'.

GM

" as adjective -reasonably or cheaply priced: budget dresses."

Around $50usd per driver? (puts on Nomex suit)
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Old 30th March 2009, 07:47 PM   #8
GM is offline GM  United States
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A $50 'sub' driver is pretty much an oxymoron, but scope these out to see if any singles (or in multiples) work for you: http://home.comcast.net/~jhidley/

There may be others, but I don't keep up with all the various sales, etc. and understand that as a general rule, any drivers rated for small cabs don't work well in big ones except in multiples.

GM
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Old 30th March 2009, 08:03 PM   #9
jbell is offline jbell  United States
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I don't see why jack's 15" CV clone driver http://home.comcast.net/~jhidley/ at $60 wouldn't work in a big 'ol ported cabinet tuned to about 28-30hz. Use one of jacks on sale amps, they have the HP you need for a 30hz tuning. They also come shipped with a 35hz 6db bump.

It'd be cheap, and sitting in a corner would make some serious noise.


Here's the in corner response at 28v. Add in the amp 35hz bump and your room gain, and you should be flat down to a very respectable range.

Is that affordable enough? (edit, while I was typing, GM beat me to it !!)
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File Type: jpg cv15a.jpg (43.9 KB, 139 views)
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Old 30th March 2009, 09:35 PM   #10
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Now we've got some options! Thank you all.

If I were going to go to $100 for 1 driver, what would you suggest?

I don't know whether to go smaller multiples, or one larger driver. For me, multiple drivers would make for more difficult assembly.

Thanks again!
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