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Originally Posted by meymia  Any way i bought enough material only to cover the front and side of the trap and not the back.
1)is it bad?
2)Are the rock wool fibers gonna get out of there and into my lungs? 
3) Bottom line drag myself and get some more fabric or can i just leave it the way it is? |
What sorta plates are these? Raw rockwoool throughout? The ones I buy, "acoustic plates", have a paper facing on one side and a fiberglass facing on the other side. Both are strong enough to retain the fibers without fabric wrapping.
If it's raw rockwool, some sort of covering would probably be nice. A garbage bag could do.. The fibers won't jump around on their own accord - but trust me - someone is bound to touch those panels! Any movement of the panels themselves, or strong air currents, will send some fibers off into the air.
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Originally Posted by meymia 4)Im not gonna stack 2x5 cm on each other and make a 1st reflection trap cause one is enough for high and mid (which is all we need to absorb in 1st reflection)right? |
Right.. But.. You'll probably want as much absorption as you can get. 10 cm will provide some broadband control too, in addition to sharpening the stereo image.
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Originally Posted by meymia 5)Why do people put rock/glass wool on the front wall (behind the monitors) its not a 1st reflection point....? |
Modal control?
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Originally Posted by meymia 6)What is the best way to hand those 1st reflection points rockwool wrapped in fabric traps (no wood there only on bass traps) ? |
I presume you meant to write hang? A broad flat strap, like the ones used for wrapping heavy packages(auto shop stuff), wrapped all the way around the panel, could work well. Reinforce the contact areas with some cardboard if needed to avoid the panel crumbling around the rope.