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

Showing 3 responses by bkeske

@noromance 

I’ve Nobsound springs under 11 pieces of equipment. All with 3 footers under each.

I just picked up 2 new sets. That is my approach too Brian. Thus, Now have three sets = 4 pieces of equipment. Was just playing around with spring counts on my Belles 400A this afternoon, which is a beast. Started with three springs initially, but added a 4th spring to each of its three today (in the center).

@ryder

My Belles 400A is about 60-70lb too, and three feet are fine. Now, because of my layout, there are two toroidal transformers in the middle, so that may help, not sure how yours is set-up. Regardless, the chassis in my old Belles is very strong, I have no concerns with one foot/spring in the rear. There isn’t any flex in the chassis that I can see.

@ryder

I gotcha, nice Lux. Yes, your layout is a bit different as it is an integrated, not a stand-alone amp. The shots of mine are on my virtual system page. I use the Nobsound feet under the chassis itself, not to its stock feet, but instead, adjacent to them. I should probably remove the stock feet actually.

I had been using cones prior, which did make a significant difference. The Nobsound vs the cones I was using is pretty much the same/similar actually. Perhaps a little better, but not anything that ‘turned my head’ over.