Amazing work that you guys have done! This sounds like a very interesting project.
I'm thinking of trying this myself; but I have several questions:
1. Will perfectly circular headphone enclosure work, or is an oval better? Stax uses circles, but they have more holes in the mesh they use.
2. Several of you are making the mesh out of copper.
Suppose I machine aluminum or copper mesh from thick foil with extremely many holes very close together, to extent that the plate is not rigid by itself under stress.
To make it very rigid, suppose that at distant but regular points I braze stamped triangles from steel for instance, with thin bars brazed on top of them them (like a bridge truss structure) across the entire surface: it will look like pyramids made of thin trusses. This will cover very few of the holes, as it will be raised from the mesh plate, and if optimized like in a music hall, it will not cause the sound to bounce around too much theoretically.
Has anyone tried this sort of thing? That is, joining a rigid support system to the electrically conducive plates while maximizing the number and closeness of holes on the plate without concern for its individual rigidity under stress?
3. Speaking of mylar? Will 2 micron thick mylar that is already metalized work as diaphragm material?
Edit: I also don't have time to make the electrostatic amp itself, and would like to buy one. Which one would work best for home-made electrostats, if anyone knows? I have a usb dac, and mostly have been listening to wooden closed dynamic headphones.
I'm mostly interested in making several home-made electro-stats, driver and enclosure, largely because that's what I have tools for making.
Edited by thelion - 12/15/12 at 11:22am