Amen to acoustic treatments! I couldn't get the performance I do from my L-shaped room without them, though mine are completely DIY at this time.
In an effort to squeeze even more out of my system I've been doing a lot of research on this topic lately. I believe I've learned a few of the points that have been mentioned here. It seems that most any, if not all, rooms can benefit from LF absorption. There may be no such thing as too much absorption in these frequencies. However, much like Arthur posted, the problem with many absorption products (and DIY recipes) is that they also absorb mid and high frequencies. Depending on the room this can lead to poorer imaging and HF room response. I think many people, including myself, choose to remove some or all of the absorbers after a while due to this effect. I'm not saying that these absorbers are defective, they just may not be the right kind for the given room.
Another point I've learned on this topic is that it is very easy to give up if one doesn't get maximum impact from the first treatment attempt. Most of the time it takes a combination of treatment areas to get the room right. I'm still searching for that combination in my room but the more I learn about this the more educated experiments I can make.
Thanks for adding to my acoustic education!
In an effort to squeeze even more out of my system I've been doing a lot of research on this topic lately. I believe I've learned a few of the points that have been mentioned here. It seems that most any, if not all, rooms can benefit from LF absorption. There may be no such thing as too much absorption in these frequencies. However, much like Arthur posted, the problem with many absorption products (and DIY recipes) is that they also absorb mid and high frequencies. Depending on the room this can lead to poorer imaging and HF room response. I think many people, including myself, choose to remove some or all of the absorbers after a while due to this effect. I'm not saying that these absorbers are defective, they just may not be the right kind for the given room.
Another point I've learned on this topic is that it is very easy to give up if one doesn't get maximum impact from the first treatment attempt. Most of the time it takes a combination of treatment areas to get the room right. I'm still searching for that combination in my room but the more I learn about this the more educated experiments I can make.
Thanks for adding to my acoustic education!