which rockwool to choose?

That's kind of a lot to page through...I couldn't really find any specs on anything. You're looking for rockwool that's at leat 48 kg/m3 and typically not more than 60 kg/m3 (thought that's flexible depending on what you're building). If you can find something in that range you'll be fine.
 
Depends on what kind of music you're tracking. I like the music from the 70's and 80's, so of course I chose Classic Rockwool.













Nevermind...
 
Okay, time to get back to the problem. I contacted the seller and I was suggested Paroc COS 5. What do you think of that?

(also rwa45, slab 45 and nrs1 are not in the selling list)
damn... why is it so hard to find the right product...:p
 
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