https://bursonaudio.com/post/shangling-cd-80-burson-hd-opamp-upgrade-by-antonio-t/?v=b870c45f9584
Shangling CD-80 CD player discrete opamp upgrade by Antonio T. | Burson Audio
May 7, 2014 - "Burson audio has a great product. My (Shangling CD-80 CD player) audio terms are not good but I do have old ears. I know good sound when I hear it"...
discrete opamp