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[moon]

Originally Posted by DoryDavis

I can't comment if it is good or not so good

It's worse than useless because it doesn't absorb lower frequencies, leaving you with all the lovely mud. I don't know how they get away with it.

2-4" of high density mineral wool like Owens Corning 703 or Knauf RS60 makes a decent broadband absorber - and it's cheaper.

[Rick Shepherd]

Originally Posted by moon

It's worse than useless because it doesn't absorb lower frequencies, leaving you with all the lovely mud. I don't know how they get away with it.

2-4" of high density mineral wool like Owens Corning 703 or Knauf RS60 makes a decent broadband absorber - and it's cheaper.

I thought Owens Corning 703 was fiberglass?

[moon]

Same thing.

[KevWind]

Yes 703 is a high density fiber glass but I believe has very similar absorption characteristics as mineral wool

[Rick Shepherd]

Thx Kev and Moon for the clarification. I need to invest in some room treatment.