I repeat, finest sound I have ever heard. I don't know what jacks you used or how you went about it, but I do know it is sensitive to the RCA's selected and the how they are installed. Either way, (TgRaffair) I suggest you try it. I have found it to be better than all the mega-dollar dacs I have heard (including SACD), and I can afford what I want. Paul Stubblebine having having mastered numerous platinum, gold and Grammy® Award-winning albums in the last 25 years got rid of about 16 very expensive dacs, Pacific Microsonics ($23K) and others too numerous to mention and replaced them with 16 DIO's. I found out about his use of the DIO's long after I had discovered it.
Mike
Mike