I've owned NS1000M and X's, and NS10000
Very solid open metal box type stands like these
https://www.audiotrends.com.au/atacama-sl-400i-black.html
https://www.hifiracks.co.uk/products/fortis-speaker-stands
(height tweeter/mid point ear level) speakers blu-tacked to the stands, stands spiked into cement slab floor.
If the floor is suspended (wood/cement sheet) "do not spike" into it as you make the floor into a sound board, try to isolate as much as possible (rubber feet etc etc).
Cheers George
Very solid open metal box type stands like these
https://www.audiotrends.com.au/atacama-sl-400i-black.html
https://www.hifiracks.co.uk/products/fortis-speaker-stands
(height tweeter/mid point ear level) speakers blu-tacked to the stands, stands spiked into cement slab floor.
If the floor is suspended (wood/cement sheet) "do not spike" into it as you make the floor into a sound board, try to isolate as much as possible (rubber feet etc etc).
Cheers George