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Nobsound springs - load range

I want to try out the Nobsound springs as damping footers (mainly under my mono blocks and my streamer). I ordered a first set of them and now I wonder about the amount of springs to put in for different weights of equipment.I remember one post that said it works best when 50% compressed (was it @millercarbon?).

I measured the compression of the springs, it takes ~2.5 kg per spring to compress it to 50%. Based on 50% compression target, this yields the following sweet spot configurations (only stable ones, total equipment weight):
- 3 units, 3 springs each: 22.5 kg
- 4 units, 3 springs each (or 3 units, 4 springs each): 30 kg - 4 units, 4 springs each: 40 kg
- 3 units, 6 springs each: 45 kg
- 3 units, 7 springs each: 52.5 kg
- 4 units, 6 springs each: 60 kg
- 4 units, 7 springs each: 70 kgLoad can be considerably higher than expected (somewhere I read about 36kg, which is presumably for 4 units).

Any comments?What about ~10 kg streamer, seems to be too light to compress the springs enough? Does anyone have experience with Nobsound springs under light equipment like this?
Based on your experiences: Would you even dare to put an 80kg floor standing speaker on Nobsound springs?
hm9001
millercarbon's avatar
millercarbon
12,531 posts
 
Granite rings like a bell. How you managed to get some and set it up and not notice, ... wait a minute. Dude the vibrations?!?! Nevermind. The dude abides.

noromance's avatar
noromance
9,907 posts
 
Granite sounds terrible. 4 x Nobsound springs with 1 spring in each under my 13 pound phono amp work well.
ryder
1,690 posts
 

- 4 units, 6 springs each: 60 kg
- 4 units, 7 springs each: 70 kgLoad can be considerably higher than expected (somewhere I read about 36kg, which is presumably for 4 units).

 

From my understanding the maximum load capacity of 4 Nobsound units with 7 springs is 50 kg. Did you manage to hear a positive change with the Nobsound under your amps? Does the Nobsound sound better with more or less compression?

 

What does 50% compression mean? Does this mean that the gap between the top and bottom aluminium alloy piece is reduced to half?

tsushima1
1,165 posts
 

Spam ... Spam ... Spammmmmmm

tonywinga's avatar
tonywinga
844 posts
 

I'm trying the Nobsounds under my preamps right now.  First, I got the cheaper plastic ones to try because the aluminum ones were not available. I had to use two springs per corner and wrap the springs with Teflon tape to stop the squeaking.  They worked but the resonance point was 8 Hz.  I just got the aluminum ones a few days ago.  They are much nicer.  I found that I could use just one spring per corner now and got the resonance down to 4 Hz. They are effective isolators.  With one spring per corner I have roughly 0.200" gap or travel left.  The springs in the nobsounds will not deform if you go closed coil and since this is a static application working height/load is not an issue.  Just maintain some clearance or they cannot isolate.  I believe the ideal resonance is 3 Hz for the most effective isolation.  

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