Get some BluTack if this is for monitors on speaker stands. This will couple the speakers to the stand, fill the stand with sand and lead and make sure the stand is spiked to the floor.
http://www.blu-tack.co.uk/ available anywhere it's used to hold up posters on the wall.. Sounds like the "moongel" mentioned above also.
If you use spikes facing up from the stand to the bottom of the speaker, make sure to mass load the speaker with a bag of lead shot or sand.
http://www.blu-tack.co.uk/ available anywhere it's used to hold up posters on the wall.. Sounds like the "moongel" mentioned above also.
If you use spikes facing up from the stand to the bottom of the speaker, make sure to mass load the speaker with a bag of lead shot or sand.