Springs under turntable

Indranilsen, exactly that is why you have to hang the mass from the springs vs placing the mass on the springs. This is what the Feet of Silence do and why they work so well. You ordered them just right for the lowest resonance Frequency and because of their design they are inherently stable. Great product. You can throw those Nobsound springs away. Bad design.
Rix, I build my own subs and have been through just about every permutation you can think of. Your opposing drivers (force cancelation) is a great way to go. But, as I said before it does not matter if you subs are spiked to the house or suspended. You can not keep the bass from getting to the house. Put on a 30 Hz test tone and walk around your house. Stuff in rooms on the far end of your house will be rattling. There is no way you can stop it all. IMHO spiking them to the floor is the best solution. Springing them will create a resonance peak unless you get the spring rate very high in which case you are doing nothing. You can not isolate your house from bass. 

You can throw those Nobsound springs away. Bad design

Bad design for subs? They work great on my very heavy turntable. The thread is about springs under tuntables. Not subs! So in that context, the Nobsound springs work well.

I would have to agree that I am pretty impressed with how well they seem to have worked under my 401.
And the large SQ change that was easily audible with just a simple spring configuration change.
Hard to complain at $33........
So many thanks indeed to Noromance for bringing this thread to the forum.

Same here. Good one. Thanks!

Noromance, bad design for anything. If you could get them down to the right resonance frequency they would wobble all over the place. People were also discussing the use of springs under subwoofers and I expressed my opinion that it is not a good thing to do.

As far as Bass is concerned, everyone should have a pair of good head phones. Forget about the image but focus on the sound and detail. This is the bass you should hear out of your system ideally. Using a record with an acoustic bass solo to compare is ideal. If you like pushing the lower frequencies louder as a matter of taste well, that is up to you but you will sacrifice some detail. 

Indranilsen, You have to level the turntable with a record on the platter and yes it always matters. Perhaps not as much with a pivoted arm as with a tangential tracker but still. You may also want to adjust the feet so they all bounce together if you can. Lock the tonearm in it's rest. Push the turntable down stretching all the springs to their limit and let go. The springs that bounce fastest are farthest away from the center of mass so move them a little closer to the center of the turntable. Try to adjust them so that they all bounce together at the same rate. The games we children play.