Vibration isolation or absorption?


You see those pointy things at the bottom of a speaker that are very very sharp.  Arguably a weapon in the wrong hands.  And then you see those same pointy things inserted into a disk.

So the pointy things, aka ‘spikes’ , can Channel vibration elsewhere and away from the components and speakers, or they can isolate it.

Seems channeling vibration away from a component/ speaker, which I guess is absorption, is preferable.

Is this true? And why do they keep saying isolation.

 

emergingsoul

Killing vibration is stupidity. Eliminating it is impossible. Fearing it makes for sales expansion. Using it as a tool to improve sound reproduction makes more sense. 

EAR makes damping compounds for damping the hulls of submarines (military application). 3M has a line of damping compounds as do a number of other companies- and some of these are used in cars to make them quieter inside. 

We used damping compounds in our preamps. Their effect is measurable and audible. My LP mastering lathe used adjustable points and a vibration damping platform, made about 1950.

But just on account of the fact that there are large businesses that make damping compounds, we can know that the post of the above quote is dubious. Killing vibration isn't stupid...🙄

@audiopoint , i.e., Robert Maicks, is the long-time spokesperson (propriator?) of Live~Vibe Audio (that some may remember as Star-Sound Technologies), which sells primarily points (aka spikes), coupling discs, and Sistrum platforms to support speakers and other audio equipment. 

Cutting to the chase:

"Audio Points function as high-speed brass conductive gateways for resonance and unfavorable noise to flow out and away from the component or loudspeaker" 

"The high-speed exit of detrimental resonance caused by vibrations establishes greater “operational efficiency” within the component or loudspeaker per the laws of Coulomb friction and Coulomb damping."

Many audiophiles use and support their well-constructed products.  If encouraged, Robert will cheerfully go on ad-infinitum about the science behind their points or, you can look up his posts on this forum, and/or go to their website where you will find plenty to read.  You will also find an unwavering belief in their theory, without room for debate.  Mostly a case of Believe It or Not!

 

I think audiopoint's point was the costly extremes some go to to isolate, decouple, call it what you will, to get better sound. No speaker can be completely isolated from the floor and airborne vibrations but there are some products out there that'll improve the sound of your system without picking your pocket. 

All the best,
Nonoise

Atmasphere,

You missed my point. 

Killing vibration is stupidity because you cannot destroy it. 

Manage it, yes, but vibration-forming resonance never goes away. Electricity vibrates causing the issues you deal with on a daily basis.

Did you ever try mechanical grounding all the key parts in your electronics design? It beats using damping compounds and provides livelier sound quality, but who am I to state this? 

Try mechanical grounding your amp chassis first and reduce the thermal operational temperature. The audible outcome will surprise you. I am more than happy to assist in any way we can.

You choose to use damping compounds. We use natural damping factors in the materials used to build our products. 

You are a manufacturer of electronics, we understand your reasoning and design philosophy. 

As a sound engineer, I look at vibration as music’s lifeblood. Quite a different point of view.

Resonance formed by vibrations is the issue we should be focused on.

Robert