bass trap article

A really nice article with awesome illustrations about low frequency absorbers and behavior, the hanging trap discussion i found pretty interesting, and of course, an obvious plug for 'tube traps', but still a good read http://www.acousticsciences.com/articles/db1191.htm

Interesting... thanks!!

interesting article but i think the sympathetic resonanting panel description may be a bit off as hanging traps actually work off diffraction (and thus are broadband absorbers with a tunable low frequency cut off) although any panel movement/vibration that acts to absorb is a plus.