Turntable platforms

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.

Minus K is center of gravity sensitive.  If your component is heavier on one end, it cannot be rested/centered on top of the minus K platform.  To do so, you might have to use a ballast on the lighter side.  Also, the component cannot be slid while resting on the minus K, as this can damage the internals.  Either way, it is great.

 I use HRS platforms under the mono-blocks.

Good luck,
Jose

Here is everyone’s solution
4 curtain rings 
4 racquetballs 
2x3 slab of granite counter top 
1)place rings down in a square
2) put balls in rings
3) place granite slab on racquetballs 
Done! No vibration

When I recommended Minus K, remember I wrote, "a custom Minus K".

@willy-t,

Ok, how are you effectively dealing with component vibrations and acoustic rumblings?