I bought some Owens Corning 703. Now what?
I don't see, with all of the advice given, where anyone has stressed the need to examine the corners. millercarbon: Also you might want to check out the Decware site where he has a very interesting analysis that explains why corner treatment as I have done is so effective.Only the one comment and the two web page links. Probably everyone else missed it too. |
Curious to know how much if any of this the people offering advice above have actually done? These are the same panels, only mine are 1" thick. https://www.theanalogdept.com/c_miller.htm This was a long time ago. 2004 according to the fellow who took the pictures. This was just where the panels happened to be at that time. They are not like that now. https://systems.audiogon.com/systems/8367 You don't need no measurements and in fact unless you really know what you're doing are probably about as likely to make things worse as better. Your ears are all you really need. Because, think about it, if you do something per measurement and it sounds worse are you going to force yourself to live with it because, measurement? Or are you going to go by what sounds best? Your call. Think about it. Especially since if you look at the absorption specs for your panels (OC has a spec sheet) you will see they really only work at midrange and treble. Which you can easily hear. So have no need for measurement anyway. Simply experiment with your panels just like I did. They are light enough to be held temporarily with simple pins. That is how mine were. You can try full panels but they cut easily by hand with a razor blade or knife. One simple test is to stand different places in the room and clap. Listen for the decay. It should be smooth and even. If you hear flutter echo then you know to treat one or both parallel walls in that area. Two reflections that tend to be worst for smearing imaging are the side and front walls. On the sides there is the first side wall reflection where the left speaker bounces off the left wall, and there is also another one where the right speaker bounces off the left wall. Also you might want to check out the Decware site where he has a very interesting analysis that explains why corner treatment as I have done is so effective. Keep in mind that at this point you already have more than enough material to do your whole room. More than enough. All you need now is to figure out where it goes, and then find some nice fabric to wrap it in. Fabric needs to be as acoustically transparent as possible, or it will actually reflect and not allow the OC703 material to do its thing. |
