RANKO ACOUSTICS RAC-6020 portable decode headphone upgrade line.  Applied 6N single crystal copper silver-plated copper. 

Rich and mellow low-medium frequency. The euphemistical and multivariant sound characteristics of the high-frequency.  

The multiple level sound field.  Jumpy graceful note. Equiped with the powerful decoding ability of the ES9281AC PRO.  

The beautiful notes jump and be able to listen directly to various high-resolution audio.  The sound is more delicate and balanced. The silky details fill the ears and extend. 

Ranko Acoustics RAC Decoding series, whether the voice performance or the appearance of workmanship. Are called the king of the small tail decoder.