Chippy_boy,

in your first post in this thread you've stated

Quote Originally Posted by Chippy_boy View Post
But equally - when you think about it - if the OS is merely streaming out bit-perfect audio, it is impossible for any of your perceived improvements to actually exist, isn't it. The bits are the same, and there is nothing in the new software that can improve the inherent jitter in the crystal in your Mac, nor the layout of the internal wiring - which also is the source of jitter.
I would have no problem if you would say - I've listened to two setups with different OS and couldn't hear the difference - that is a perfectly valid subjective opinion. Or if you've stated that you've measured the jitter of two setups and the validity of the bitstream and didn't see any significant (from your point of view) difference - I may agree that it is a valid measurement and that there is no measurable by your equipment significant difference between two OS SPDIF output streams.

However you've used the word "impossible" which is not a good word to use when your argument is merely speculative, based on neither an experiment nor a subjective perception. It is that word in your statement that I found objectionable and not in the spirit of this forum.

Alex