Why Anchor Speakers?


Since we're on the subject of vibration tweakage, should speakers be anchored to the floor? If so, why? My speakers are on stands which rest on carpet, and I am considering spikes which will anchor the bottom of the stands through the carpet to the flooring. Should I do this? What should I expect to hear differently?
128x128cmjones
Not only can you hear better sound characteristics when your speaker stands have spikes going directly to the floor as mentioned above, but many people also use three small points under the speaker that rests on the speaker stand for additional improvement.
While I personally agree with the reasoning and experience of the above posts, I would note that John Dunlavy (Dunlavy speakers) does not use spikes on his well regarded speakers. Why? He just says that they don't "measure" better with spikes. I just wanted to see the contrary opinion noted, and no, I don't own Dunlavy speakers. Cheers. Craig
I used to have my floorstanding speakers spiked (through a low pile berber carpet) to a hardwood floor but experimented a few months ago with 1/4 inch laminated (security) glass-two 15" x 15" pieces, one beneath each speaker, no spikes. Total cost for the glass-about $35. My speakers are a little unusual in that they are a 3 way design with the woofer mounted internally firing straight up with the low frequency info exiting a round port below the tweeter (midrange driver above the tweeter). I can't say if this configuration has anything to do with the sound spiked versus on the laminated glass, but the glass was a major, and I mean major, improvement and has stayed. All the detail remained, but the presentation became much fuller and more fleshed out-it simply sounded more relaxed and much more like live music. The sound with spikes in places was much more fatiguing and shrill. With the speakers I have, I won't be using spikes again.