Interesting thread.
My 150 lb speakers are on spike, but instead of sitting on carpet directly I found the sound to be better sitting on a 1/2" granite between spike and carpet. I used the granite which was left over from my house remodel for ease of moving the speakers initially, but after hearing what they do I left them under the speakers.
I am ready to try something like Symposium platform under the speakers, but I agree spikes should still be used regardless what you put under.
My 150 lb speakers are on spike, but instead of sitting on carpet directly I found the sound to be better sitting on a 1/2" granite between spike and carpet. I used the granite which was left over from my house remodel for ease of moving the speakers initially, but after hearing what they do I left them under the speakers.
I am ready to try something like Symposium platform under the speakers, but I agree spikes should still be used regardless what you put under.