Turntable platforms

For cheap DIY dudes here’s one for the ages. Three Super Balls - the 3/4” size, not the bigger 1” balls - like they have in vending machines - and three Snapple bottle caps. The Super balls are great because they don’t store energy, they release it rapidly. That’s why they bounce so high.

Granite has the inherent advantage of mass and stiffness and sounds great if it is isolated on springs as the top plate of the iso device. Granite cannot ring if it is isolated since the granite cannot be excited by floorborne vibration due to filter effect of mass and springs. airborne vibration cannot excite the granite either since any vibration on the top plate is dissipated by the isolation system. Granite or bluestone of sufficient thickness 2-3” can sound excellent if simply placed in very hard cones. If you’re worried that granite rings don’t strike it while listening to music. There’s not enough energy at it’s Fn to make it ring. The inherent stiffness of granite and bluestone slabs makes them very resistant to bending forces comprised in seismic vibration. 🔄

Let’s talk about the Minus K for a second. Great performance, under 1.0 Hz in all of almost all directions of motion. I read you can drop a penny on the top plate of the Minus K and it will go into slow undulation, rocking and rolling and moving up and down. That’s what isolation, very good isolation looks like, small forces put it into motion with ease. The best isolation is when there is the greatest ease of motion. That’s also why it’s critical to square away all power cords, etc. that might constrain the motion of iso system for any spring type iso stand.

That would certainly explain why my simple undamped springs sound better than Townshend Iso Pods. Any restraint of the micro motion of the springs, e.g., the rubber fabric or the force of air, interferes with the effectiveness of isolation. As I said damping degrades the sound. 

If you’re so smart why ask me? 

The springs should not be damped. Damping hurts isolation effectiveness and it’s audible. You just place the springs under the component. Voila! 🤗 My springs provide vertical isolation, some rotational isolation. LIGO uses many types of isolation including dual-layer heavy mass-on-spring systems and sapphire thread suspension. LIGO pendulums provide isolation in many directions. My first design was a pendulum with very heavy suspended mass that isolated in 6 directions with Fr as low as 0.5 Hz (vertical 🔝).

One word. Springs! Springs for lightweight things, springs for heavy things. Spring is the thing! LIGO the project to observe gravity waves uses passive spring systems so trust me, they’re good enough for audiophiles, too. 🤗 With simple springs you can easily achieve 2 Hz performance. 

chakster
Try to find AT 616 pneumatic insulators and you’re done.
Under your turntable or under wooden desk
read more in my sold listing on UKAM

>>>>>I always appreciate testimonials for products someone sold. 🤗

No.....thank you!

You must be made out of money. $15,000? And those TS-150 stands only isolate one component. Ouch! Double ouch! I can isolate an entire system for about $150 - $200 with 2 Hz performance. Give me a break.

+1

“The only good vibration is one that’s dead.” - Shannon Dickson

Yes, I know what some of you are thinking, “but speakers are like musical instruments. They’re supposed to vibrate!”

millercarbon says,

Symposium and others pretend to do isolation. Really impossible, ultimately all anything can do is control vibration. Damp, tune. No such thing as isolation.

>>>>Are you channeling Michael Green again? You don’t even know what isolation is, do you?  Remember what the Little Train that Could says, “I think I can, I think I can...” Toot, toot! 🚂