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Originally Posted by myfipie hey welcome to the world of wacky acoustics world!! Ours also have the air gap on the back, but you still want to space it off the wall to let sound in from the sides.. Take a look at your data reports, "A" mount is flat on the wall with the spacer on the back.. It may look a little odd to you to have the space between the panel and the wall but it has to be there.. As found out in a lab.. |
It was good talking to you Glenn. We are in agreement about spacing off walls. To clarify my prior post, if you have an inch or two of gap behind the fiberglass built INTO the frame, you only have to have the trap another two inches off the wall via spacers, rather then 4 inches off the wall had you not had an air gap in the frame. BUT, as I was saying, every room is different, and what a lot of people don't hear from guys who sell acoustic products (and this is no reference to anyone on this thread) is that it is not uncommon to go TOO FAR with absorption.
When a room is completely isolated and built "soundproof", it will need a lot more bass absorption then if you build a studio in a room that is not built for isolation. Teal just installed some bass trapping in the corners of a room here in LA that was not built as an isolated room. After doing listening tests, we both decided that there was no need to "stuff" R13 behind the bass traps which audibley increased low end absorption. But the studio owner couldn't believe that we opted for less absorption, so he stuffed the corner gaps with a lot of R13, and lo and behold, it sucked up too much bass and the quick mix he did was way bass heavy in the 100-200Hz area, which is an awful area to be heavy in.
So I guess what I'm trying to say is that the really key in acoustics is to listen at every stage of installation. Each room has different needs and some will require more acoustic treatment then others. Diffusion is also very important in a room and thats why Teale is almost done with a rig that will be able to mass produce quadratic diffusors for pretty cheap.