Originally posted by Svante
The magnetics is not a problem. Anyway, stainless steel is not magnetic, right?
The bigger problem is the resonant properties of steel. It has very little losses, which probably will result in very narrow/loud resonances, possibly at rather high frequencies (depending on wall thickness).
It is a cool idea, but I would be careful to attach some sticky material to the inside of the box walls to increase the losses in the wall and thereby attenuating the resonances.
The wall thickness I plan to use is 1/2" steel (13mm) Very thick and heavy. I have a lot of this material left from a job and I can cut it on my waterjet. I plan on seam welding it into a closed chamber so no losses will occur.
That being said, I dont know what type of resonance I will be dealing with or at what frequencies? any thoughts on how to calculate or anticipate what I will end up with?
with that thickness of metal would an inner layer of damping compound be necesarry? I am scared of building a Bell that at a specific frequency it rings like crazy... Aluminum does not seem to do this in my previous experiments but steel has interesting audible characteristics when excited.