In this feature, James reviews the $249 Cayin RU6, which is the first-ever 24BIT discrete R-2R implemented dongle-type portable DAC and headphone amplifier. Disclaimer: This was sent to me as a sample for my honest opinion. Headfonics is an independent website with no affiliate links or services. I thank Cayin for this opportunity.  To learn more about Cayin products featured on Headfonics you can click here.  Note, this article follows our latest scoring guidelines which you can read in more detail here. … Continue reading Cayin RU6 Review