The winter is long and I'm going to start a new DIY project for a panel absorber. The reason for that is to get rid of room resonances / bass problem below 100 Hz. My other DIY panels that I have placed in all four corners improve the acoustics very well, but seem to have almost no effect at very deep frequencies. (and that's no wonder).
I also have some electronics to beat the bass, but I want to try to solve as much as possible "mechanical" before the computer does the rest. Maybe it's even possible to go without any electronic filtering later...
Before buying something commercial like this:
I want to try how far I can move myself.
The theory is pretty clear and a good description how we find the final formular is here:
Everything ends up with the mass of the panel and the depth of the box as parameters. Quite surprising!
The question is: Has anybody of you done this already? What is your experience? Is it worth to give it a try?
Thanks. Any thoughts welcome!