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  #11  
Old 02-16-2018, 12:05 AM
PHC1 PHC1 is offline
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Originally Posted by GaryProtein View Post
If you are putting the slab on a carpeted floor, you're better off just using the spikes and engaging the hard subfloor.
Then there is the other school of thought. If you isolate the speaker, especially a larger one on a stone base, it will not excite the floor and walls as much. The subfloor and the wall studs/drywall are coupled and the walls will sing along.
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Old 02-16-2018, 02:59 AM
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I’ve always operated under the assumption that it depends on the type of floor. If you have a solid floor like a concrete slab, whether carpets or with wood overlay, anchoring the speaker with spikes has the benefit of stabilizing the speaker so that it doesn’t move around, causing blurring of the image. If, on the other hand, you have a suspended, springy floor, spiking the speaker will excite the floor and won’t keep the speaker from moving anyway. So, spike for a solid floor and isolate for a sprung floor.
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Old 02-16-2018, 06:58 AM
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Stone, cement, etc...all have their frequencies and/or bands thereof where they 'ring'. This is one reason why firms like Adona with their flavor of constrained layer damping use 'sandwiches' of granite with layers of other materials to defeat the effect and provide an equal sonic benefit to other CLD-based technology. For my money I would go with Stillpoint Ultra5s or 6s every time.
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Old 02-16-2018, 04:39 PM
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Quote:
Originally Posted by GaryProtein View Post
If you are putting the slab on a carpeted floor, you're better off just using the spikes and engaging the hard subfloor.
We have hardwood floors and a crawl space..

Thanks everyone!
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Old 02-16-2018, 10:36 PM
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Originally Posted by SCAudiophile View Post
... For my money I would go with Stillpoint Ultra5s or 6s every time.


Can I use your money to get Ultra 5s for my speakers? [emoji3]
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Old 02-16-2018, 11:23 PM
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Quote:
Originally Posted by audioguy3107 View Post
If my memory serves me, I believe the Sonus Faber Grand Pianos came with the slabs shown in the picture, I think they were a standard marble, not granite. Can't imagine they would be any different than a standard marble slab that you can get from a stone/tile/outdoor store.



- Buck


I use some 2” stepping stones from the garden center years ago (looks like rough marble but is some kind of concrete). Made a big difference with my SFGP on old pier/beam hardwoods. Less resonance, better bass, think tweeters are designed to be higher.
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  #17  
Old 02-16-2018, 11:26 PM
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Can I use your money to get Ultra 5s for my speakers? [emoji3]
🤣[emoji23][emoji2][emoji28][emoji41]
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  #18  
Old 02-17-2018, 03:18 AM
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SCAudiophile... that’s a no then... [emoji24]
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  #19  
Old 02-17-2018, 07:34 AM
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SCAudiophile... that’s a no then... [emoji24]
Already got the Stillpoints and other stuff last year and back to the R1s...the cupboards are bare, sorry [emoji41]!
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  #20  
Old 02-22-2018, 01:25 PM
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Quote:
Originally Posted by kubla36 View Post
I use some 2” stepping stones from the garden center years ago (looks like rough marble but is some kind of concrete). Made a big difference with my SFGP on old pier/beam hardwoods. Less resonance, better bass, think tweeters are designed to be higher.

a pair of SFGP's are coming my way. Thanks for the tip
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