IsoAcoustics ISO-L8R200Sub Isolation Stand voor subwoofer
The reason that I have given it 4 rather than 5 stars is that the base and feet position is fixed cannot be adjusted.
This means that if your subwoofer has feet they *might* not align. My Dali E9F just about fits on, with a couple of the feet balancing on the very edge of the stand (I tried removing the feet but they seem fixed on). It sounds a fine, it just means that if it gets a knock I'll have to position it again and it's a bit awkward. But, worth it anyway in term of improving bass? Absolutely.