There are many good products available and it would be difficult to say one is better than another as an absolute. Some might do one thing a little better than another one.
For speakers, I use spikes with cups under the spike to protect the hardwood floor. I prefer a cup that has the thinnest, tiniest bit of rubber or felt underneath it. Otherwise the cup can leave an impression; although it is less than the impression that would be caused if somebody walked across the floor with high heels. Older hardwood floors that do not have the mulitple layers of factory applied finish, as is found in modern hardwood floors, are not as hard and are more susceptible to dimpling. So the wider the cupped base, the better.You might even try a stone or granite square base to increase surface area, with the spiked speaker or stand placed on top of that; although that can introduce other problems.
Generally you want something that has a good connection with the floor but a small surface area to minimize vibration transfer into the equipment from below. That's why spikes are good. The flat base or cup for the spike is then added only to protect the floor.
There is no reason why the stand needs different protectors than the speakers. The same purpose is being served. Individual component products, which are smaller than stand/speaker stands, can be useful in protecting vibrations from one component travelling through the stand into another component. Personally, I have not found any advantage in isolating individual components other than a turntable. A turntable may have a good isolation base with a suspension system anyways. Others do notice a benefit from isolating individual components. I think it would benefit tubed equipment in particular, in addition to turntables.
Here is an interesting product that is not expensive but very good.
http://www.uhfmag.com/Issue61/Superspikes.html
It is an integrated spike and cup in one unit. It avoids the problems of having a spikes speaker/stand bunmped out of the cup. I have noticed that this can easily occur with shallow cups. It also makes moving speakers about for tweaking positioning a lot easier.
For speakers, I use spikes with cups under the spike to protect the hardwood floor. I prefer a cup that has the thinnest, tiniest bit of rubber or felt underneath it. Otherwise the cup can leave an impression; although it is less than the impression that would be caused if somebody walked across the floor with high heels. Older hardwood floors that do not have the mulitple layers of factory applied finish, as is found in modern hardwood floors, are not as hard and are more susceptible to dimpling. So the wider the cupped base, the better.You might even try a stone or granite square base to increase surface area, with the spiked speaker or stand placed on top of that; although that can introduce other problems.
Generally you want something that has a good connection with the floor but a small surface area to minimize vibration transfer into the equipment from below. That's why spikes are good. The flat base or cup for the spike is then added only to protect the floor.
There is no reason why the stand needs different protectors than the speakers. The same purpose is being served. Individual component products, which are smaller than stand/speaker stands, can be useful in protecting vibrations from one component travelling through the stand into another component. Personally, I have not found any advantage in isolating individual components other than a turntable. A turntable may have a good isolation base with a suspension system anyways. Others do notice a benefit from isolating individual components. I think it would benefit tubed equipment in particular, in addition to turntables.
Here is an interesting product that is not expensive but very good.
http://www.uhfmag.com/Issue61/Superspikes.html
It is an integrated spike and cup in one unit. It avoids the problems of having a spikes speaker/stand bunmped out of the cup. I have noticed that this can easily occur with shallow cups. It also makes moving speakers about for tweaking positioning a lot easier.