How do speakers be classified?
By use classification: high fidelity (home) loudspeakers, monitor speakers, loudspeakers, musical instruments
Sort by composition: single cone speaker, combination cone speaker, combination horn speaker, coaxial compound Young
Sorted by diaphragm: cone speakers, dome-shaped speakers, belt speakers, flat-panel drive speakers.
Classification by radiation: cone (direct radiation) loudspeaker, trumpet (indirect radiation) loudspeaker.
By energy classification: electric (moving coil) speakers, electromagnetic speakers, electrostatic (capacitive) speakers, piezoelectric
