2. misc-audio
  3. 161683-132085

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
jerryg123's avatar
jerryg123
3,429 posts
 

@mahgister +1 sir.

 

oldhvymec
5,101 posts
 

Peanuts, Master M, peanuts.. :-)

Regards

redlenses03
99 posts
 

waste of time without giving so much as a single reason why such calculations are useful.

No one is arguing and qualified it with

Of course this gets one in the ballpark and will require experimenting

No one is claiming a calculation is the end all be all, ooy

This was all just to say, it will prob SAVE time doing a few quick calcs to get things in the ballpark instead of trying 1000 unnecessary permutations. Comp springs are engineered to operate within the given design parameters so as to work at freq ranges.

I use springs and roller bearings on all my gear, not sure what the issue is with the discussion at hand.

tweak1
3,679 posts
 

Having removed lots of springs from the Nobs, under the various components, while the music was clearer, I lost the grounded aspect/weight. 2 things left speakers (a 2 man job) and my Core Power 1800 PLC, which is at the bottom of my vertical rack. I've been waiting for help, but last night listening to Blues Brothers, while the clarity was amazing, but overall the weight/soul of the music was missing. This is a very poorly lit room, and access to the back of the rack is difficult in daylight with all the cables, BUT, I decided to replace the 2 Machina Dynamica HD springs in the front with Nobs (fully sprung): WOW. The missing weight magically returned, SHOCKINGLY SO. Today's task is to maneuver behind the rack and insert 2 more

ryder
1,690 posts
 

 

 

 

 
tweak1
2,436 posts

Having removed lots of springs from the Nobs, under the various components, while the music was clearer, I lost the grounded aspect/weight. 2 things left speakers (a 2 man job) and my Core Power 1800 PLC, which is at the bottom of my vertical rack. I've been waiting for help, but last night listening to Blues Brothers, while the clarity was amazing, but overall the weight/soul of the music was missing. This is a very poorly lit room, and access to the back of the rack is difficult in daylight with all the cables, BUT, I decided to replace the 2 Machina Dynamica HD springs in the front with Nobs (fully sprung): WOW. The missing weight magically returned, SHOCKINGLY SO. Today's task is to maneuver behind the rack and insert 2 more

 

That's useful to know. I've come to a conclusion that the Nobsounds are not exactly a "plug-n-play" whereby people can expect instant great results once they are installed under components. It took me about 5 days to get to the optimal spring configuration on my amp alone, all through tedious listening and swapping of the springs which left my fingers knackered (as the amp weighs more than 60lbs).

 

I have just settled with the optimal spring configuration for the power amp in my second system. As I only have 2 sets of Nobsound, there are none left for my preamp and sources. I may eventually acquire additional sets for the other components as I appreciate the cumulative effect of the Nobsounds once they are installed on all the components. I've briefly tried the Nobsounds on the preamp and the sound did change for the better.

 

I have also found that the Nobsounds will not work well under lightweight components. They need to be loaded to a certain range for the component to sound good. For this reason, the DAC in the main system (about 15 lbs) remains supported by the ceramic-based isolators as it sounded worse with the Nobsounds
More to discover