Amp stands- Do they work?

This is for Nanderson & others who need a scientific explanation. Every 'stand or "non-stand" your precious gears are resting on are governed by the same fundamental physics; and those who are in engineering would agree to that. Basically our intention is to ensure that all vibrations real or perceived/predicted should be kept out or attenuated sufficiently of the audio range of frequencies. Check out http://members.xoom.com/rjmaudio/twk.html for some basic physics. You don't have to agree to all the principles explained but rjm's theories made some sense to an engineer. Buy or diy, but understand first!Phil.

If you are on a wooden floor with a basement or crawl space, bracing with jacks and wooden pillars individually under the equipment and the speakers works wonders. I also find that lead shot "sand platforms" and flat bags of lead shot as equipment dampers work very well and aren't too expensive. Just make sure they are sealed and don't try is if you have kids.

Iceraven, excellent pointer you gave! Solid advice and a good starting point for anyone.

My PhD work is in the field of prob testing. I suggest anyone that is willing to be humilated try a double blind test. A wordy explanation does nothing but convince the less sophisticated that you must be right since you devoted such good grammer and time to your explanation. I have sent every audiophile home with their tail between their legs on things they think they hear. I find this fun helping people save money for retirement and time with their family. Good luck but lets get back to reality.

Nanderson, perhaps you live close enough to me to listen at my place. I can assure you that if you have not ever heard benefit from stands or other forms of isolation under amps, then you have an interesting experience ahead of you. In fact if you really believe your statement, and it is the result of testing on a sound system, then you have never heard a high quality system. In my system (and I believe, most other posters at this site) it is absolutely no problem to hear the difference between various materials, such as spikes, and in addition, there are several layers that can be inserted, I.E.: (Starting top to bottom) (1) Amp, (2) feet, (3) stand, (4) feet, (5) floor. In the text where I have inserted "feet" the material can be any one or multiples of the following: wood, carbon fiber, Sorbothane (Audioquest) Soft Shoes (McCormack), Delrin (Simply Physics), Valid Points (Walker), stainless steel spikes (various), air bladders (various), sand bags and/or sand trays, etc. ALL of these products sound different. Mind you, I would not argue about the outcome of testing these individual pieces in a system, because depending on the equipment involved, the construction of the floor, personal taste, etc., arguments would break out about which one is the winner. In any case, there is indeed a HUGE difference in stands and other coupling/ decoupling devices. The question is NOT whether these devices work or not, this is not an issue! The question is, which device works in the particular system that is being improved upon.