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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: OK, so instead of pontificating, how about ... posted by dave c on June 20, 2005 at 03:14:51:
postjob62 just beat me to an answer but you have raised a couple of "interesting" points - ie. you need to explain your reasoning a bit more, for us dullf*&%s.You said: "Simple ... it's so you don't (1) create a feedback loop through the floor to the other components and (2) use the floor (and any space under it) as a resonator.
Point (1) I can understand if you have a suspended wooden floor - and I certainly have experienced a sheet-floor vibrating near a speaker which was spiked to it. Whether this movement was then sufficient to move the mass of the nearby CD/TV cabinet, so that the CD player on top of it was vibrated is, I suggest, a matter of conjecture.
However, if the spiked vibration IS sufficient to set up a feedback loop through a suspended sheet-floor then I believe it is certainly NOT sufficient to set up the same feedback loop through a ground floor concrete slab. The mass of the slab vs. the sheet-floor, compared to the amplitude of the spiked vibrations, precludes an effect!
NB: I am not saying here that a ground floor concrete slab will not vibrate if you hit it hard with a sledgehammer!! However, sonic vibrations coming from a speaker resting on a stand which is spiked to that concrete slab is at least a couple of orders of magnitude less than a sledgehammer hit!!
I suggest your point no. (2) is similarly suspect for a ground floor concrete slab (which has no resonant space underneath it).
Now, re. Newton's Law (for every action ... etc.) If you happen to peruse the Maggie Users' Group (MUG) Forum, you will find endless posts about how Mye stands do wondrous things to Maggies. Mye stands have a) a solid, heavy base and b) some struts which angle forwards from the rear of the base 'U', to bolt to the speaker panel about 2/3rds of the way up. And the Mye stands are spiked.
The result is ... the panels are held absolutely rigidly and this produces far better base but also far more "clarity" and definition to the sound. These are 50 or 60lb speakers, BTW, and this can only be if Newton's Law suddenly IS being observed!!
Irrespective of whether I'm right or wrong about the above comments, I cannot see how leaving a "lossy" connection between speaker and stand can help any? I like small blobs of "BluTac" under each corner of the speaker which squash down flat - yet hold the speaker tight to the stand! Whether or not you go for a lightweight stand or heavy, sand-filled stands is, I think, a matter of personal philosophy (some swear by "lightweight" stands, some prefer the concept of mass).
Then there is the concept of coupling your speakers to their stands but decoupling the stands from the floor by resting them on "rollerblocks" or some such device. I believe this is to stop seismic (or similar ground-travelling vibrations) from interfering with the speakers ... but, although devotees of these systems swear by them, I cannot see how they do any good except in places like California.
I look forward to your response.
Regards,
Andy
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Follow Ups
- Thanks, Dave .... - andyr 06:04:05 06/20/05 (1)
- AHA! Blu Tak!! - dave c 13:22:35 06/20/05 (0)