Sonotube bass traps?

[Prozakk]

I will hopefully be building 2 18" Soundsplinter LLT 28" diameter sonotube subs soon. I'd like to make some bass traps/acoustic panels that resemble the subs. How/what do I do to achieve this?

[eugovector]

I've seen it done with chicken wire over a couple wooden donuts for shape, but it was also stuffed with the pink fluffy stuff, which as I understand, is pretty useless for bass trapping (not dense enough). Maybe rolled up rockwool instead?

[Mike P.]

Here's a link to round traps. I have no idea how efective they would be for your application.

http://www.teresaudio.com/haven/traps/traps.html

[Prozakk]

I've seen those pipe insulation traps before. And I've heard less than stellar performance of them. Now I've read some great things of flat traps made from fiberglass HVAC ductboard. I was just seeing if any progress in round traps has come about, and making them look like the sonotubes. I don't really care to pay $600 a tube for prefab round bass traps.