RW3 vs Knauf Acoustic insulation

NucularNun

Hi Guys,
I am only fresh on here so I'm not sure if I'm posting in the right section so apologise if not,


I am making Acoustic Panels for my studio the frame for which are already made at 1 meter by a half meter made from 4x1 timber. As I am in Ireland I cannot acquire Owens Corning 703 and I stuck between choosing Rw3 and Knauf Acoustic Earthwool Insulation.


RW3:https://www.build4less.ie/insulation-materials/acoustic-insulation/rockwool/prorox-sl930-rw3-75mm.html#

Earthwool: https://www.build4less.ie/insulation-materials/acoustic-insulation/knauf-acoustic-earthwool-insulation-100mm-roll-11m2.html

I have been looking for data sheet on the two to compare acoustic qualities and decide which to choose but cannot find anything.

Does anybody have any suggestions? I have a bedroom studio where I record and mix. I only record vocals.

Kind Regards,
Nun

i57dwun4yb1pt8

rw 3 is 6 times denser than the knauf ( 60kg versus 10 kg m cubed )
so to absorb from 300 hz down , denser would be better if you wish to mix in a room .

owens corning is 45 kg a meter cubed.

two panels in each corner straddling the corner with a gap behind would be ok

the knauf might be ok to kill higher end first point reflectiosn and pingy room reverb
and for a mix cloud above your head


i also recoomend sonarworks ref 4 with measure mic to tighten your monitors mix position or headphones response
but it is approx 300 euro .