DYNAMIC HEADPHONE

摘要

The miniature headphone has a carrier for a moving coil and a diaphragm made of PET. The dia. of the vibrating part of diaphragm is smaller than 30 mm and the dia. of the coil carrier is half that figure. The ratio between the thickness of the PET diaphragm and the diameter of the vibrating part is 4...5 x 10-4. If the ratio is maintained the headphone has a satisfactory reproduction for the bass frequencies and uniform reproduction for the medium and higher sound frequencies.