Springs under turntable


I picked up a set of springs for $35 on Amazon. I intended to use them under a preamp but one thing led to another and I tried them under the turntable. Now, this is no mean feat. It’s a Garrard 401 in a 60pound 50mm slate plinth. The spring device is interesting. It’s sold under the Nobsound brand and is made up of two 45mm wide solid billets of aluminum endcaps with recesses to fit up to seven small springs. It’s very well made. You can add or remove springs depending on the weight distribution. I had to do this with a level and it only took a few minutes. They look good. I did not fit them for floor isolation as I have concrete. I played a few tracks before fitting, and played the same tracks after fitting. Improvement in bass definition, speed, air, inner detail, more space around instruments, nicer timbre and color. Pleasant surprise for little money.
128x128noromance
SolidAirAudio: We have done more scientific tests, which show a slight load dependant resonance, but this is not very helpful as it will vary with units with different weights. It does explain why a second layer of feet works so well though, as with a different loading,

Anyone up to try a McDouble? 😆

Following your lead.
@totem395
From Doug Audio. The maximum is around 45kg / 99lb. We recommend <35kg / 77lb.
You'll have to interpolate and test for 5 and your situation. 
@derekw_hawaii - has anyone done any testing with dual-pitch compression springs?
It's a discussion I've had with another user of spring isolation, and it's another way to deal with the issue with broader frequency isolation.

I have seen the SoildAirAudio and some of their products appear to be very similar to Solid-tech out of Sweden.