1. I guess that the bar magnets allow the serpentine strip of the trace to make best use of the magnetic fields without 'wasting' parts of the trace upon the gaps which would inevitably appear between the magnets more often on a 'grid' type arrangement.
2. Has anyone ever made an ortho' that uses electromagnets?
3. P.S. sorry again about all the O.T, but I suppose that all the tech' we're discussing here could potentially be home fabricated with the help of 3D printing!
1. Actually, the "grid" you mention could benefit diaphragm stability much like the zig-zag traces on the T50RP. Here's a picture of a somewhat unique diaphragm circuit layout using a grid of smaller square magnets like you imagined. The patent goes into further detail on everything, but I just wanted to post that picture so you could see the flux lines jumping from North to South between all the magnets. You can play with the right hand rule and the direction of current and figure out how the diaphragm interacts with everything, or see how all traces are pulled in the same direction.
Warning: Spoiler! (Click to show)
I really like this design.
2. The diaphragms of all orthos are electromagnets. I like the idea of utilizing the mind-bendingly strong magnetic fields produced by today's neo's, it's like free efficiency. And I like the idea of being able to use traditional headphone outputs in smartphones, computers, etc., it's why I wanted to design an ortho instead of a stat.