Long sought and then found a top product

When you live with beamed ceilings, it will work closely with powerful subwoofers. An electronic room correction can indeed combat modes, but remain the vibration of the soundboard. So the SW is placed on a granite base and this is decoupled from the ground. For this I could not find anything suitable at first and tried it with gaskets for 50 mm sewers, although reasonably functioned, but also deformed and discolored the floor. And here the absorber coming into play, namely exactly everything can really good. Whether the specified 25 kg load capacity agree so, I want to leave time to be seen. For me at least 4 piece had apparently too much trouble with the RD. 50 kg package, so I decided to use two more.
Considering this limitation, an absolutely recommendable product. And less than two euros apiece are totally ok.