DYohn
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Posts: 18,366
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Post by DYohn on Mar 31, 2013 12:46:38 GMT -5
When I was younger, my parents had a friend that was very big into audio. I remember he had a set of speakers from Somewhere in Europe that had 2 big slabs of marble, one on top and one on the bottom. It had 4 threaded steel rods in each corner and you tightened the top and bottom of the marble on your speaker to make it totally inert. It was very cool and at the time I remember the speakers being almost 10K and that was in the early 90's. They've since both died and I've never been able to find exactly what they had. That sounds like a very cool system. I'd love to see it.
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DYohn
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Post by DYohn on Mar 31, 2013 14:54:00 GMT -5
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emovac
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Post by emovac on Apr 1, 2013 0:21:12 GMT -5
Boom - take a look over at Herbie's Audio Labs. Much of what he specializes/trades in is decoupling and isolation materials. He will answer any questions you pose via email or phone.
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Post by ausman on Apr 1, 2013 3:46:56 GMT -5
general of thumb don't place speakers on wall most need room to breath.
all speaker cabinets vibrate how bad this happens depends on how much reinforcement it has..
unless you shape the back board it will be hard to know how good or bad the refection is...
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Post by Boomzilla on Apr 1, 2013 4:15:30 GMT -5
Boom - take a look over at Herbie's Audio Labs. Much of what he specializes/trades in is decoupling and isolation materials. He will answer any questions you pose via email or phone. Thanks - he's here: herbiesaudiolab.netThe tube dampers to manage microphonics are cool, but I was always taught that when the tube became microphonic, it was time to replace it...
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Post by wizardofoz on Apr 1, 2013 6:22:08 GMT -5
For the LinkwitzLab.com LS521's the bass bin is decoupled from the upper mids and tweeters by a bridge. See my build here walaneh.com/LX521/
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Post by Boomzilla on Apr 1, 2013 7:57:54 GMT -5
Now THAT's a cool speaker!
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emovac
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Post by emovac on Apr 2, 2013 0:28:53 GMT -5
Boom - take a look over at Herbie's Audio Labs. Much of what he specializes/trades in is decoupling and isolation materials. He will answer any questions you pose via email or phone. Thanks - he's here: herbiesaudiolab.netThe tube dampers to manage microphonics are cool, but I was always taught that when the tube became microphonic, it was time to replace it... Not necessarily. Some tubes are more microphonic than others and more suspectible to vibration. If you read some tube enthusiast sites, once in a while a guy will come on complaining about the thump he hears when he taps on his tubes - within a couple of posts, someone will respond and advise him the problem will stop when he no longer taps on the tubes. No kidding....
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Post by htinparadise on Apr 2, 2013 22:28:14 GMT -5
I would think that the only way to damp a speaker with sorbothane, would be to de-couple the drivers from the cabinet itself. This is to say, use it as a gasket inbetween the driver and cabinet. You may even first try using blu-tack (for e.g., also inbetween cabinet bottom and speaker stand top) which has similar properties and is far cheaper.
Regards,
HTinP
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Post by Boomzilla on Apr 3, 2013 6:41:38 GMT -5
Latest lunacy:
Since Sorbothane is intended primarily to be used under compression, and since mass-loading is the superior way to tame side-wall reflection of a cabinet, my feeble mind came across the following:
Stick-on wheel weights in lead with an adhesive backing. They're cheap, heavy, self-adhesive, and small. An array on the inside or outside of a speaker panel wouldn't use much volume, but would add LOTS of mass to the panel. This would (presumably) lower the amplitude and frequency of panel vibration?
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