Interesting - I should say I am using a spare 518 I had as an expensive converter as I had no more inputs for the mac optical- and the result as said before is great. I am using the 518 in its native pass through mode- not doing any shaping or anything else. The result is bit-bit accurate as my test is to rip a DTS CD and play it back- if it plays all the bits are the same as the original.

best regards,
Jerry

Best regards,
Jerry
Main System: 861v6, DSP8000s in corners, DSP7000s Center and Sides, 1-9 humans.