Final Audio Sonorous IV Closed-Back Over-Ear Headphones ( OPEN BOX ) - Discontinued headphone A2DC The HD 820 combines an

The HD 820 combines an innovative glass reflector and ring radiator transducer technology for a benchmark listening experience

and reliability

The headphones adapt automatically to the wearer’s physiognomy

Brand Final Product Type Headphone Accessory Color Gold Cable Length 1

Final Audio Sonorous IV Closed-Back Over-Ear Headphones ( OPEN BOX ) - Discontinued headphone A2DC The HD 820 combines anFinal Audio Sonorous IV Closed Back Over Ear Headphones With the synergistic effect of a hybrid design that merges balanced armature with a 50mm diameter dynamic driver unit coupled with BAM mechanism, the Final Audio Sonorous IV Closed Back Over Ear Headphones have achieved a clear, vast sound stage with depth to it. With these, the music that seemed to be localized inside our heads with existing headphones vibrates over a large space. BAM mechanism