To Couple or Decouple Bookshelf Speakers to Stands?


Just bought my first pair of bookshelf speakers (Focal Aria 906) and stands - have filled the stands with sand. Should I use sorbothane pads to decouple the Focals OR Bluetack them to the top base of the stands?  I've asked 3 friends and received 3 different answers.......
dadgad4
If the stand is full of sand, it is decoupled. The term refers to bass to room coupling. The floor (normally). You have sand filled stands? I’d doubt that any bass harmonics are transferring down the stand. If you want to tune the bass (increase) you "beard" the front of the stands. By increasing baffle width and height it can be, a nice sonic nugget. Takes a bit of tinkering though...You’ll get it.. Even cardboard will let you work out the W x H. Convex, Concave, Flat, or split baffle...

Regards

Regards
I have done all the experiments. The best I have found is: fill your stand with a filler material, I use small pebbles (buy by the bag at Home Depot or Lowes) not as messy as sand. If your stand has spikes use Herbies  Cone/Spike Decoupling Gliders under the points. Between the speakers and the stand use Herbies Thin Fat Dots.

https://herbiesaudiolab.com/collections/loudspeaker-rack-decoupling-and-isolation

Try not to listen too much to  roberjerman and experiment.
If the question is to either couple of decouple, how did you receive 3 different answers??!
I use Blu-Tack between the speakers and the stands with spikes on bottom of the stands. Have hardwood floors over slab, so I use spike shoes to protect the wood. 
" If the question is to either couple of decouple, how did you receive 3 different answers??!"

Don't see 3 different answers. Mine was decouple, reached by trying all options and choosing what I thought was best. Opinion based on experience and experimentation.