Hello, I have found an interesting alternative to the common loudspeaker motor in the form of a magnetic repulsion circuit. The picture below shows the basic idea. A coil is suspended between two magnets (or pairs of magnets) that are a certain distance apart. The magnets are mounted so that their poles oppose one another. The picture came from a Japanese article that was impossible to translate, so there was little I could understand from it. What I'm trying to understand is how would the magnetic field of the voice coil interact with the field generated by the magnets? Say a positive voltage is applied to the voice coil, which way will it move? If anyone can help me better understand this concept, I would greatly appreciate it!