Another alternative is the planar magnetic speaker. These units use a long, metal ribbon suspended between two magnetic panels. They basically work the same way as electrostatic speakers, except that the alternating positive and negative current moves the diaphragm in a magnetic field rather than an electric field.

How does a magnetic speaker work?

Speakers have two magnets. ... When current passes through the coil of wire, the electromagnet becomes magnetized and gets pulled and then pushed away from the permanent magnet. The cone is attached to the electromagnet, so when the electromagnet moves, the cone vibrates, creating sound (which is just moving air).

Do planar magnetic speakers exist?

Planar magnetic speakers can handle a lot of power without undue stress or audible strain. In fact, for a given surface area, they can handle many times the power of a traditional dynamic driver.