Stax is a Japanese company that makes high-end-audio equipment. Stax is best known for their electrostatic headphones (which they call “EARSPEAKERS”) and electrostatic systems. Offering the finest headphones for both professional and audiophile applications. STAX refers to all its headphones “EARSPEAKERS”; such Ultra-High Fidelity devices for reproducing music can only be compared with the best cost-no-object loudspeakers, not other headphones. The term ”EARSPEAKERS” is, therefore, more descriptive of STAX’s contribution to today’s most advanced level of sonic transduction.