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17th May 2010, 11:05 PM
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#1 |
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diyAudio Member
Join Date: Dec 2007
Location: Land of the Morlocks
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Zaph SR71 Build in Concrete
I threw together a pair of SR71's in concrete... They weigh about 55 lbs each (just box) and are 1 inch thick on all surfaces. Cant feel too much through the box when they are playing. Kinda look a little industrial with the bug holes but I can't argue with the sound that comes out. Pretty good speakers for the price.
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18th May 2010, 12:28 AM
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#2 |
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diyAudio Member
Join Date: Oct 2003
Location: North Georgia
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Nice job! Got photos of the build process?
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Paul |
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18th May 2010, 12:36 AM
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#3 |
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diyAudio Member
Join Date: Feb 2006
Location: Cascais
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Ho God! Somebody copied my skin... (The Big Merino
 )
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18th May 2010, 01:08 AM
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#4 | |
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diyAudio Member
Join Date: Jan 2002
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Neat build. I'll second Paul's request for build pics.
This reminds me of a pair of bookshelves I saw years ago made with besser (cinder) blocks with part of the centre divider ground out, and front and rear baffles glued on with construction adhesive. Beyond the driver and xover cost, total investment was about $5. Didn't look as good as erpiii's though. Quote:
Oh, and wrong smilie; it's actually a sheep.
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18th May 2010, 02:36 AM
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#5 |
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diyAudio Member
Join Date: Feb 2002
Location: Western Sydney
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re:'the Big Merino, it is a significant cultural icon down here' -
I thought it had changed to this... (nice work, erpiii)
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Impedance varies with frequency, use impedance plots of your drivers and make crossover calculations using the actual impedance of the driver at the crossover frequency |
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18th May 2010, 05:53 AM
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#7 | |
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diyAudio Member
Join Date: Apr 2002
Location: Newcastle, Australia
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Quote:
Oh and yes, it would be interesting to see how those concrete (or is it cement) speakers were built, please.  I think the thing that would worry me most about concrete or cement would be chipping of the corners. (apart from getting a sore back, of course  )
Last edited by Andy G; 18th May 2010 at 06:01 AM. |
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