Hi,
Its been almost 2 weeks since I upgraded my Australian ZX1 to 1.14 (thanks to yurix for the upload). Here are my current observations.
Sound
While there was no significant change in the overall sonic signature (which many here characterise as somewhat clinical and i dont disagree) I have observed the noticable improvement in instrument separation and sligthly increased sound stage. This is particulary true for bass, that stands out more in the mix. Bass also gained some additional weight and its touch more rounded/better defined. There are differences in the highs also. Initally, I thought the highs sounded rolled off. It took an hour or so of listening to realise why I felt that way. The previous high end shimmer (mostly noticable on brighter masterings) has gone now.
I did the test with all sound enhancements turned off(plus volume hack) and using FLACs of 44/16 CD'rips and some 96/24 downloads from HD tracks. Most notable improvement was with 44/16 rips.
Regards