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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
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ryder
1,748 posts
 
noromance’s avatar
noromance

6,792 posts

@ryder The springs under your Luxman are too compressed.

 

May I know the recommended compression? I was made to understand that the optimal compression of Solid Tech footers is between 1-3mm. The Nobsound is based on Solid Tech's design so I presume it’s the same.

 

ryder
1,748 posts
 

The gap at the front footers is 3.5mm. The rear footers are worse as they currently have a smaller 2mm gap. If the Nobsounds require a larger gap I’ll add one spring to the rear footers which will probably get the gap up to 5mm.

When I first installed the Nobsounds, they have a large gap between the top and bottom aluminium piece but a member here advised to get them as close as possible. Check out the thread at the Tech Talk section.

noromance's avatar
noromance
10,182 posts
 

@ryder I ignored that sheet and load by ear. Mine have less compression and sound best when they bounce. 

ryder
1,748 posts
 

Right. Looks like there is no easy way out. I will do it by ear also. Not easy since my amp is quite heavy and it’s quite a chore to move the footers in and out.

That may explain why I felt the sound was better yesterday when the springs have less compression

 

Thanks for the advice.

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