Viablue Isolation Spikes

[Justinf]

I recently built some custom speaker stands (for my new AS B2.2s) and need to install some isolation spikes. I came across these http://www.av-outlet.com/en-us/dept_252.html and they look very solidly and accurately constructed and I was wondering if anyone has any personal experience w/ them? The link in this post has them for $20.00/set of 4 shipped which is about the cost of some of the cheaper looking stuff. Any feedback?

 

[WmAx]

ViaBlue QTC Spikes are used for acoustic decoupling of the speaker cases from the base.

That is physically impossible. Spikes do the inverse of decouple; they couple more rigidly. If you want to de-couple, you must use a supporting material layer that either (1) has a resonant frequency with the speaker mass applied that is below the frequency band you want to isolate [or] (2) has a high co-efficient of converting the frequency band of interest into thermal energy.

Through the vibration reception disk, vibrations are received on the rotary plate with adjustable height. The vibrations gathered in the main cone are deflected. Excess pressure builds up and is transferred to the especially hardened points. On the equally identically hardened absorption master disk, a maximum pressure point is then created. The vibrations are eliminated.

The vibrations are eliminated? Where did they go? I see no mechanism that would convert them to thermal energy. I see solid metal units, not specially designed dampening materials. The vibrations are being directly trasferred into whatever surface these disks are contacting.

-Chris

 

[Justinf]

Ok, your comments make sense. But will they, or will they not work as stand spikes to couple the speaker stands to the floor, keeping the stands from moving around, vibrating on the carpet, and such?

Justin

 

[mtrycrafts]

Ok, your comments make sense. But will they, or will they not work as stand spikes to couple the speaker stands to the floor, keeping the stands from moving around, vibrating on the carpet, and such?

Justin

If you have carpets that the stand is siting on, your flooring is not rigid in that it moves when walked on to upset the speakers, or the stand is not stable enough sitting on the carpet, spikes should anchor better to the floor below the carpet if it also passes through the padding.
Otherwise, if the stand is stable, speakers don't usually move just because the diaphragms do.

 

[Justinf]

That is what I was looking for. I guess I will stick w/ my current setup. The stands are plenty stable but I was thinking that the spikes may limit any other vibration that may be introduced while listening to the speakers.

I have read several accounts from this and other boards about spikes/sufficient coupling to the floor below making a difference in sound quality...

Justin