Dirac HD Sound® is a state-of-the-art digital audio performance enhancement technology that optimizes all types of sound systems outfitted with a loudspeaker or transducer, from home speakers and mobile devices to headphones. By correcting impulse and magnitude frequency response, Dirac HD Sound drastically improves musical staging, clarity, voice intelligibility, and bass fidelity. 

Dirac HD Sound® is tailored to each specific earphone or loudspeaker model based on meticulous acoustic measurements. Unlike EQ or effect-based solutions that just mask poor sound quality, Dirac HD Sound® offers fundamental audio performance improvements.



  • Genuine audio performance optimization with enhanced clarity
  • Customized for individual device measurements
  • Tailored (branded) sound character
  • A more natural and transparent sound
  • Improved bass range and definition
  • A more dynamic sound stage

Dirac HD Sound for Earphones

Dirac HD Sound for Loudspeakers