Building Amp Stands

Before you start drilling holes at random, try reading the Stereophile article entitled "Bad Vibes" by Shannon Dickson. From what i can remember, it mentions a formula that supposedly tells you the optimum or near optimum place to locate spikes / cones under a component or shelf. Sean
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Great article - I feel armed with concrete beginner information that I will have to refer to in the future. A formula is included which locates nodes within a platform. Why a node is interesting but is counter to some people's beliefs.

I suggest forgo the drilling and use Walker Audio Valid Points. These are massive and can handle anything. They can be delivered drilled and tapped as well, but I really do not think it is needed in your situation. They are a bit pricey but the best cone available, in my opinion.

Fatparrot,

I've recommended this method earlier, but it bears repeating, you would really be doing yourself a favor by going the Promethean route.

The resolution gains available with the Promethean are absolutely stunning. I would not bother repeating myself if this isolation solution were not truly "crazy" good. Here are some specifics.

I was tweaking my digital platform tonight and it just reinforced how good these Promethean Bases actually are.

Components pieces listed from floor upward:
(deviations from standard Promethean configuration are noted in parentheses)

1) Ganymede VCS roller bearings on hardwood floor (Machina Dynamica recommends Super DH Cones/DH Squares in this position)

2) 1" Maple shelf

3) Machina Dynamica springs

4) 1" Maple shelf with Tekna-Sonic C-5 damper on bottom side

5) Super DH Cones/DH Squares

6) DAC - good performance was had without DH Cones/DH Squares as well

7) Mapleshade IsoBlocks (Machina Dynamica recommends DH Cones/DH Squares in this position)

8) Transport

I was impressed with the Prometheans in standard configuration, but I am floored by the modified version I tried this evening. It was hard to believe that there was that much more information available inside my digital discs.

I didn't have enough roller bearings to try this on my amp stands, but after my experience this evening I will acquire more and give it a try.

BTW, I realize your application is on carpet. You could try these atop your Symposium or some other shelf placed on the carpet. FYI, my platforms are the 16"X19" model.

Thanks to all for your valuable help! I've actually decided to use a set of speaker cones (brass) that I'm not currently using. My speakers are sitting on top of Aurios, placed on top of a carbon fiber board. I am also waiting to perhaps purchase the new State Technologies amp stands, which are supposed to cancel out stray magnetic fields and eddy currents which are produced by all amps. Preliminary indications are that these stands, which are the first attempt to solve a previously ignored fidelity problem, are spectacular!

Slappy, why do you hate working with purple heartwood? What type of sandpaper do you recommend?