2. misc-audio
  3. 173885-168343

Quiz about adding dense mass to a vibration isolation application!

There are two steps in this quiz:

1) Hypothetically, you have a DAC that is very solidly built on all sides and weighs 25 lbs.

This DAC currently has three Nobsound vibration isolation devices under it, the springs of which are about 50% compacted and are damped by foam ear plugs inserted inside of them.  The vibration isolation effect with this setup is merely middling according to a cell phone seismograph app.

2) You add a 25 lb granite slab to the top of the DAC with a 1/8-inch rubber mat between it and the DAC, and then add the appropriate number of ear plug foam damped springs to each Nobsound device in order to get all Nobsound device springs back to about 50% compacted.

The question: What do you think is the sonic result of step 2?

128x128gladmo
roxy54's avatar
roxy54
7,779 posts
 

I wouldn't know myself, but I have heard some knowledgeable members here warn against sandbags and other heavy items like granite on top of speakers and components even though that might seem like a good idea intuitively.

I'd be interested to know the result.

tomic601's avatar
tomic601
12,868 posts
 

dunno, i think King Spring is on vacation or hopefully banned… wait and he will be along…someday…

Most importantly, what do your ears tell you ?

Enjoy the music

Jim

dadork
632 posts
 

I have the Nobsound Springs and I feel the springs themselves are a bit stiff. I'm only using three of the springs provided in each puck and can see my gear sway and move with footfalls near the rack. Not sure how much isolation they're actually providing.

gladmo's avatar
gladmo OP
312 posts
 

@dadork 

Yeah, I'm experimenting with the Nobsound spring devices too, and I agree they should include springs which are a little less stiff.  So far my results have been that they are pretty effective with four of them placed under my two heaviest components, as well as on top of my Auralex subwoofer isolation platform (under the sub).

But under my four other lighter components, the results aren't as good and I'm looking for other solutions.  Hopefully Townshend will ship out my first set of 4 Seismic Pods soon. I may end up combining two Pods with one foam damped Nobsound under two components.

More to discover