Speaker Stands

You say there is no such thing, then you explain how to decouple the speaker, with books. Yet still when i go to another room I can hear the bass sounds that are transmitted via the structure of the house. The improvement in performance going to the Herbies Gliders was gob-smacking! You cannot begin to imagine how profound this one modest change in the system was. I was using foam previously, but moved to sorbothane hemispheres, huge difference.

When it comes to testing speaker isolation, it is not possible to place two speakers in exactly the same place at the same time, one with isolation and one without. I could feel low frequency pressure from the floor ( I don’t know if this is impacting the flat downstairs as well as “luckily” for me it’s empty). I have big rugs between and in front of the speakers but not under them. Anyway, I am not too sure rugs can do anything for this issue. The Seismic Podium is designed to brake the acoustic connection between the floor and the speaker, preventing the passage of deleterious vibrations both to and from the speaker cabinets.

I've even heard of people pouring in liquid concrete and letting it solidify. So what happens is your stands weren't coupled to the floor before because there was a layer of carpet and carpet padding under them, so they were free to pass sympathetic vibrations back and forth to your speakers. But by literally spiking them to the floor, they pass these rogue vibrations on to the floor and beyond. That's why decoupling creates a tighter bass response and a better stereo image, because speakers are designed to accommodate their own vibrations.

The basic idea is to stop anything that the speaker is touching from vibrating. Speakers should particularly be decoupled from surfaces that resonate audibly or hollow surfaces which act kind of like an acoustic guitar body and amplify resonant frequencies themselves. Best solution ever was screwing the speakers tightly to the stands. Anchoring gave best result in deminishing cabinet resonance and general loss of efficiency due to speakers wasting energy to move back and forward slightly. In my case my old, very old, Nexus 6 stands were wobbly and nothing I did like tightening screws etc had much of an impact. I was having an issue with the bass on my LS50's on certain tracks at louder volumes.

1) You dont want the speaker to move or wobble, so you want them planted solidly. Using spikes whereby the tip if the spike goes through the carpet and contacts the actual floor actually couples it, not decouples it. For carpeted rooms, you may want this because a speaker sitting merely on the carpet surface allows it to float a bit. I also filled the pillars with sand and that reduced the vibration through the hollow aluminium profiles. I simply filled one stand with sand and used my hand to test how much it resonates compared to the empty stand.

Read many good reviews and desktop speakers had some beforehand but the initial fitting was painful and moving the speakers with them was quite a challenge…. The key with all Iso products is getting the weight right. There is an optimal weight range for their products and you should pick the appropriate item based on the weight you are looking for. You get a lot of answers because there is no such thing as decoupling.