I’ve just been thru this. Concrete slab floor is great for vibration control. Rubber feet sounded much better than spikes. Might be because it’s hard to get 4 spikes perfectly balanced on concrete with zero movement. They always rock a bit. So, I put the factory feet in instead of the spikes. Yes. I tried various isolation feet. No. I even tried springs because some people here think that they are the ultimate isolation medium- capable of isolation below 5 hz I was told. No. Loss of bass definition. For acoustic control purposes I decided to put down carpet and pad along with other room treatments. Yes. Huge improvement. But, I felt the bass definition could improve. Back to spikes thru the carpet and pad. Yes! I’m very happy. And they don’t rock at all. I can’t explain that part. Carpet shouldn’t make a difference when I know the spikes go all the way thru. That has been my experience in my room. I’m not saying I think my way is what you should do. I think every room and system is unique. I had fun trying things and seeing what worked. I hope you do too. If I spend too much more time isolated in my house I might go crazy and try bolting the speakers to the floor. 🙃
Just confused
Hi I am fairly new to using high quality audio equipment. I have assembled all of the gear I want for listening/enjoying the music. Of course it’s only a matter of time before you ask yourself “What if?”. I understand that room acoustics matter so I am off trying to implement acoustic panels - some good relatively consistent advice here. What I struggle with is the subject of vibration control/isolation ... the advice from the community is not very consistent. The floor in my listening room is slab cement with ceramic tiles on top. I have Avant-garde Uno speakers (with spikes since that is they way they came), REL subs (rubber feet) and effectively an unbranded equipment rack (with spikes). Are spikes what I should remain with for this kind of surface? Does it make more sense to decouple the speakers and rack from the floor with some kind of isolation device? Should I be replacing the current metal spikes with “cones” (or other device). Should I use the same device for speaker and rack? I just want to avoid shelling out a bundle of money for something that may turn out being a negative. Thanks in advance for your patience with my naive questions.