Originally Posted by Bigus
Can't imagine what advantage neo wire would have over a slug. Wire just leaves gaps, lowering average material density, and decreasing total field strength.
I thought the room temp superconductor made it obvious.
well, he certainly got me because I thought the idea sounded pretty smart.
here is what I thought he was talking about.
drawn neodymium that is magnetized wire with a N-S in the vertical plane.
that way you are moving the magnet, not the power coil.
around the neo wire magnet could be the power coil where the current from the amp is run through. because that wire is not moving, its mass can be HUGE, so it would not heat up like typical small gauge speaker coil wire. thus power handling could be virtually unlimited. because of the enormous current the power wire could handle, the bl field provided by the neo magnet wire wouldn't have to be that strong. of course you'd need an amp that could work with this kind of arrangement, but I don't think that would be all that difficult to engineer.
now that the idea is in the public domain jan 13 2017, nobody can patent it, unless they have already filed.
and yes, neodymium wire...is a thing:
advantages of this design could be severalfold:
1. no top plate or bottom plate (reduced weight, reduced cost)
2. virtually unlimited thermal handling
3. VERY long coils, excursion and so forth by simply increasing the length of the winding of the neo and the power coil. in some theory, an underhung design with several inches of excursion wouldn't be out of the question.
4. low distortion. the arrangement could be such that the power winding could extend out past the end of the of the neo wire coil by the full length of excursion. the result would be an underhung coil operating in an almost fully linear bl field across the full range of excursion.