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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
oldhvymec
5,101 posts
 

No I sprayed 50 springs with Flex Seal and then used ear plugs inside the springs. It made quit a bit of difference.. It actually works perfect for lighter stuff like turntables, amps.. Speakers I notice it a lot less. The springs do it for the speakers alone. I load some gear with springs and a block of wood on top too. I load it in a slot between 2 3/4" pieces of 13 ply birch. Tinkering..

Regards

noromance's avatar
noromance
9,939 posts
 

@ryder The springs under your Luxman are too compressed. 

noromance's avatar
noromance
9,939 posts
 

A quick way to damp the Nobsound is to wrap 1 turn of PTFE plumber's tape around the outside of the space between the plates touching all the outer springs.

4krowme's avatar
4krowme
542 posts
 
oldhvymec

 

   Appreciate the idea. It makes sense to me to try and reduce transmitted vibration in some way that does not affect the action of the spring. Of course, I also wonder what the effect might be by the manufacturer to use other alloys for the springs themselves. Maybe different metal for the center spring if used. 

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