I have a mytek DAC with such options. Upsampling on/off, filter sharp/slow. Can't say, thus far, that I've noted any difference between them. Perhaps I've not fed it any material that tickles the ultrasonic, or jitter is not too bad in my system, or my tweeters behave well in the presence of ultrasonics, or.. I'm just too old to hear anything that high up..
-- Hardware: 3x Touch, 1x Radio, 2x Receivers, 1 HP Microserver NAS with Debian+LMS 7.9.0 Music: ~1300 CDs, as 450 GB of 16/44k FLACs. No less than 3x 24/44k albums.. ------------------------------------------------------------------------ drmatt's Profile: http://forums.slimdevices.com/member.php?userid=59498 View this thread: http://forums.slimdevices.com/showthread.php?t=106979 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles