Re: the Prism test - I am not sure it is highly objective. Looks like it must have been done with an agenda i.e. jitter rejecting DACs are a must to have good playback. Saving grace, they say the work is on-going. Read the part below - "None of the disc-related or servo-related artifacts was present for any two-box system: jitter-rejecting DACs were generally clean, as shown in the figures, whereas the spectra of non-jitter rejecting DACs were swamped with interface-jitter-induced components which were large in comparison to the artifacts noted above in one-box players."
The study would have been more clear and less confusing if the DACs were not involved in the picture at all. The jitter should have been measure in the digital output of the players (like in this article http://www.stereophile.com/features/368/ ) Ultimately, It is still not clear to me that all CD players have a 'buffer' which isolates them from the disc quality. We probably should get more into the specifics, I guess, like what chips have buffers of what size and how they are actually clocked in and out. Steve, has already mentioned that portable players are surely buffered, not to mention the CD-ROM based ones. So probably there are some players which are probably immune to disc issues. -- SoftwireEngineer ------------------------------------------------------------------------ SoftwireEngineer's Profile: http://forums.slimdevices.com/member.php?userid=7000 View this thread: http://forums.slimdevices.com/showthread.php?t=28621 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
