rockwool roll, is it good?
Old 19th February 2013
  #1
Gear Head
 

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rockwool roll, is it good?

hi guys,
in a store i've found a big raw rockwool roll (h 1,2 mt, 50 cm diameter, rockwool 5 cm thickness), unfortunately i don't know precisely the density, but i think is about 40...

do you think it could be a good solution for a "mobile" bass trap?

what's the best way to encase it?

thank you!
Old 19th February 2013
  #2
Lives for gear
Try to find or estimate the density. Decide on the specific application you want and build an enclosure for it. If it is ~40 density, you should be able to make it into a decent portable bass trap. If it is rolled up tight, you will need to let it expand to get to the specified density.
Old 19th February 2013
  #3
Gear Head
 

Thread Starter
Quote:
Originally Posted by Syncamorea View Post
If it is rolled up tight, you will need to let it expand to get to the specified density.
thank you Syncamorea...

why i must expand it? i thought that a good bass trap should have as more density as possible... am i wrong? (i'm soooo newbie, sorry)
Old 19th February 2013
  #4
Lives for gear
If the density is too high, you will get excess reflection. For bass traps, lower density, such as that of fiberglass attic insulation or lower rockwool density is best if you are going beyond 5 or 6" thick.
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