Final Audio S4000 Earphones portable Whether you're a seasoned audiophile

Whether you're a seasoned audiophile or new to the world of high-fidelity sound

With a new 40-mm driver

Introducing the first true wireless earphone by Grado

it was necessary to raise the frequency of bass tones to a level that the driver unit can reproduce

Final Audio S4000 Earphones portable Whether you're a seasoned audiophileS4000 Equipped with "tone chamber system" that brings out the sound of the earphone housing Newly developed a "tone chamber system" that brings out the new possibilities of the BA driver. By providing a special acoustic space on the front of the driver, the sound of the BA driver's original acoustic characteristics brings out the sound of the housing material. In order to enable this system accurately, it is necessary to control the volume in the