Springs under turntable

@slaw

I've experimented with weights on top of speakers in the past, not on springs and found that it's easy to overdamp the cabinet. Not always a good thing.

Are you sure by adding the mass, you didn't actually overdamp, but perhaps moved the resonant frequencies into modes that sounded worse?

TMD dampers on top of a loudspeaker cabinet, the likes of the ETI AMG topper. http://www.audiopolitan.com/blog/eti-amg-toppers-review/

I was an employee of the inventor, almost all you need to know what I mean, is found in reading that review.

@rixthetrick,

I've experimented with the Tecknasonic devices years ago on my then, Monitor Audio Studio 20s. Even though those speakers were solid, those devises worked wonders!

Damped tune mass is interesting concept....Thanks...

@mahgister- I completely agree with you on loading a spring to 3% of its max spring capacity to get the max isolation. I am also working with springs for sometime now. I face two issues when working with springs
1. Spring rate. If you want to get the isolation start around 3-5 cycles for a given load then you have to select springs of very light spring rate. That would lead to using more springs underneath a load and it tends to make the sound harsh, a symptom of ringing...
2. It's important that each spring underneath the load carries equal weight which should be close to 3% of the spring max load bearing capacity. In reality most of the electronics have asymmetrical load and it makes the positioning of these springs difficult underneath a load and very difficult when isolating heavy components like amplifier.
That is why I haven't spent a lot of money in buying a commercial product like Townshend or Solid Tech which would be super expensive yet not solve the 2nd issue.
What I need is a product that would be able to weigh a component and get me the CG location along with its weight distribution in quarters. That would allow me to design & also position the springs underneath any component accurately and w/o any guess work.
Thanks.

I have Vandersteen 5A's....I read somewhere at one time that if I decouple the speakers from their spikes on to tile-on-concrete flooring using (maybe Herbies somethings), I would get better sound.   Nope....took all the music away...replaced the speakers on the floor. That's just me...