[moray james]

Someone asked on another site how they could increase the mass loading of thier speaker/stand system. I gave the following response and thought a copy of it would be worth while here. Please disagree here if you feel so inclined as I believe this to be a valid worth while modification with huge benifits and no down sides.
You can increase the massloading of your speaker/stand system by a significant precent for almost no cost. You will also make the performance and adjustment of your speaker/stand much easier to do at the same time.
   No this is not a mass multipier scam but it is as close to free extra mass as you will ever come and your system will be the betterr for the change! Find a buddy with a drill who also owns a 1/4 - 20 tap and die set. Drill a single hole in the middle of the back edge of your stand about 1/2 inch in from the edge. Cut a 1/4 - 20  therad in each of these two holes. Now mount one of your threaded spikes int the new hole. Now your speaker stand has only three spikes and the mass load per spike has been greatly increased over the previous distribution of four spikes. Now your stand is sitting upon a fully and unconditionally stable tripod. You only ever need to adjust two spikes for full stand adjustment. The spike at the rear adjusts for and aft tilt while only one of the front spikes needs to be adjusted to set left to right tilt. Now experiment with ceramic or such cone devices (three per speaker bass) and have some fun. Please post to inform others of your findings. Best regards Moray James.

[mcgsxr]

I don't have any comment on modifying existing stands, but I can vouch that 3 spikes works very well.  I have a set of Atlantis reference stands, that I have owned for 9 years...

[gary]

You'll get even better results with four small squares of thin sorbothane from mcmaster.com. It's cheap, and no drilling is required.

-Gary