is hi-density foam good for bass traps?

rynugz007 · Post by **rynugz007** » Sat Nov 13, 2004 4:27 pm

If i use some pretty firm, hi-density foam about 6" thick from ceiling to floor as corner traps, how effective would it be in the low end department? Or am i gonna be able to absorb a lot lower by using rigid fiberglass?

sorry if this question is redundant. This is my first post after doing some researching. Have always loved this forum. Great site!!!

Post by **John Sayers** » Mon Nov 15, 2004 5:04 am

Rigid fiberglass is much more efficient plus foam is usually a fire hazard unless it's specially treated.

cheers
john

Paul Woodlock · Post by **Paul Woodlock** » Wed Dec 01, 2004 2:56 am

John Sayers wrote:Rigid fiberglass is much more efficient plus foam is usually a fire hazard unless it's specially treated.

cheers
john

Greetings

John's comments depend upon the foam being compared.

The correct type of foam can acutally beat the performance of rigid mineral wool slabs.

see here http://forum.studiotips.com/viewtopic.php?t=536

However the rip off cheap foams from Foam-by-Mail, and the stuff commonly seen for sale on E-Bay are NOT very good at all, and certainly conform to JOhn's comments above.

Rigid fibre glass is more cost effective though.

Paul

AVare · Post by **AVare** » Wed Dec 01, 2004 6:54 am

Paul Woodlock wrote:John's comments depend upon the foam being compared.

The correct type of foam can acutally beat the performance of rigid mineral wool slabs.

see here http://forum.studiotips.com/viewtopic.php?t=536

Uh, if you are going to qualify the type of foam, then be completely correct.

The studiotips' absorbers wee made from OC 703, a glass fiber, not mineral wool. Confounding the issue more is the density of the absorber being compared.

My EDUCATED GUESS is that a lighter glass fiber would be better, and a mineral wool of any similar density to the glass fiber would be better yet.

Andre

Paul Woodlock · Post by **Paul Woodlock** » Wed Dec 01, 2004 11:58 am

Greetings Andre

Glassfibre slabs ARE mineral wool. Rockwool slabs are also mineral wool.

Hope that helps

Paul

AVare · Post by **AVare** » Wed Dec 01, 2004 3:40 pm

Paul Woodlock wrote:Greetings Andre

Glassfibre slabs ARE mineral wool. Rockwool slabs are also mineral wool.

Hope that helps

Aargh

I feel like "Alice In the Looking glass." A word means what someone, somwhere, means at that time thinks it means, nothing more and nothing less.

As has ben discussed in some detail on Studiotips, in europe "mineral wool" s used as a generic term for all mineral based products. Glass is a mineral: silica. In north america, and in the general use on this forum, mineral wool is used as a generic for non-glass based mideral wool products.

I was thinking in the latter meaning when I read your post.

I am getting flashbacks of the thread on studiotips about what "703" refers to. Tying in with that idea, that is why I wrote "OC 703.

Now to check my boot, polish the bonnet and go knock up some girls.

Confusing the world;
Andre