All headphones are subject to standing waves in the higher frequencies, and these can make treble sound harsh, fatiguing, or synthetic.
AMTS is DCA’s patent-pending solution to this perennial problem. AMTS is an inline device placed between the transducer and ear. It integrates waveguides, diffusion control, quarter-wave, and Helmholtz resonators into one compact structure.
...With AMTS, frequency response is significantly smoother throughout the midrange and high frequencies, free of annoying “peaks and holes” for a smoother, more complete, accurate, and enjoyable listening experience.