The Black Box is a Low Frequency Resonator Array that works in conjunction with the Subwoofers, Atmospheres and FEQ X4 to solve bass node issues.
Based on inquires I've received I just want to make one thing clear: I am NOT claiming what I've put together is the same as making an E-mat. The maker of the E-mat says the magnetic mat has nothing to do with what's going with his product and says the magnet is merely there for convenience to attaching to components. Also, he states his is totally proprietary and came from his own research and development.
What I'm discussing here is the exact opposite of the E-mat. Everything used is not proprietary and is available in the public domain (E-bay), it appears the magnetic field being created is very important to improving the sound and using the graphene oxide is based on research that is all over the internet. The fact the magnetic field builds overtime if its not disturb (the magnetic loop is not broken) and more mats create a stronger magnetic field resulting in better sound quality seems to validate what is going on with what I have proposed.
So, bottom line, I'm just messing around as a DIYer. I'm going to stop talking about the E-mat on this blog (I've already dropped-off the thread). Please don't ask me anymore questions about it either publicly or privately. Thanks.