STAX SR-X9000 (Demo)NEW FLAGSHIP MODEL FROM STAX! SR X9000 is the new flagship earspeaker which surpasses SR 009. The four layer fixed electrode MILER 3 is installed. Combining a big metal mesh, STAX evolved the multi layer MLER 2. Because metal mesh reduces air resistance and the effect of reflection, it has the high sound transparency. So metal mesh is the ideal material of fixed electrodes. But so far mesh metal was difficult to manufacture and not installed in fixed