Equipment isolation and vibration damping.

[jabbr]

2 hours ago, GUTB said:

Are active isolation platforms worth the price differential compared to passive isolation?

What type of active systems do you have in mind? Typically passive and non-feedback based active systems can isolate >5 Hz. Do you need sub Hz isolation? That requires either an even more expensive feedback based active system e.g. $10k+ or a more sophisticated passive eg Euler spring based. 

 

So wouldn't you want to know that it was actually effecting eg the DAC clock before shelling out really big bucks?

[theophile]

7 minutes ago, jabbr said:

What type of active systems do you have in mind? Typically passive and non-feedback based active systems can isolate >5 Hz. Do you need sub Hz isolation? That requires either an even more expensive feedback based active system e.g. $10k+ or a more sophisticated passive eg Euler spring based. 

 

So wouldn't you want to know that it was actually effecting eg the DAC clock before shelling out really big bucks?

How much do you charge those who want to quantify it?

[Jud]

2 hours ago, theophile said:

How much do you charge those who want to quantify it?

 

How much do you charge those who want to know what your problem is?

[Ralf11]

How much would either of you guys charge me to rent a laser interferometer for a couple of months?

 

[jabbr]

15 hours ago, Ralf11 said:

How much would either of you guys charge me to rent a laser interferometer for a couple of months?

 

If I had one my wife would pay you to remove it from the house  

[brucew]

On 6/26/2015 at 3:35 PM, bdiament said:

Glass rings like a bell and will color the sound, making it tend toward brightness or forwardness.

In my experience, optimal isolation will *not* alter the tonality.

I've noticed that when combining glass roller bearing cups and inner tube air bearings, the tonality seems good. When using roller bearings alone, the contrast was a bit hyper and the tone a bit bright. I assumed that was because it was only isolating in the horizontal and rotational planes, and was actually coupling in the vertical plane. Though it could be because the borosilicate glass cup was ringing. So how much, I wonder, is due to vertical coupling and how much to ringing materials?

 

Have people combined good vertical isolation with roller bearings on speakers? How was the effect compared to roller bearings alone?

[Ralf11]

On 3/26/2017 at 11:58 AM, jabbr said:

If I had one my wife would pay you to remove it from the house  

 

laser interferometers are pretty small nowadays - you could hide it in a closet, attic, or in your apt. you build for yourself over the garage...

[Ice]

I fear that Airpressure, Humidity and Temperature have more sideeffects than the infrasound...

By the way an interesting experiment: https://en.wikipedia.org/wiki/Infrasound