Hi ! My control room is small (3,8 x 3 x 2,7 meters). I'm going to build some diy bass traps. What u think about this rockwool? Alpharock-E 225 | Edificación Técnica | Productos | La Guía Rockwool I've been thinking of buying 12 m2 of this one. I would place 7 bass traps in the front wall, in the ceiling and in the rear wall. The ones I want to buy is the 8 cm. thick, and I would use two panels in each bass trap (totally 16 cm thick). It will be around 183 €. Do you think the 70 kg/m3 is a good choice?? Thank you so much !! Regards from Spain.