Hi @ReijerSorry, i'm very bad English , i'm from VietNamese I'm have Bw 685s2 with Nad D3020 , hear with laptop connect by usb to Nad D3020, but sound hear no good, not clear & detail. sound no good. I do intended buy Nad c356bee replace Nad D3020.Read @Reijer review TEAC AI 501DA so good, me...