hi, just testing the sb classic from a audiophile point of view.
when playing (digitally generated) low volume mp3-test-signals (400hz sine) at levels of -60, -80, -90db, i can hear a residual noise, which should definitly not be there, considering a pcm1748 dac in that box. this low frequency repetition noise sounds a little bit like an idling gasoline tractor and is louder than the -90dB testsignal and can be heard even through the -60dB testsignal. to prove that this signal comes from the sb, playing a -100dB testsignal-100dB(probably digital zero) will result in silence (ok, some noise from the amp, but the repetition noise is gone) to me it sounds like a processor generated noise, but trying different settings like display brightness, wifi or eth set-up, removing digital grounding and other options do not change it at all... i am really frustrated about this performance... actually, my small iriver h340 hd-drive mp3-player performs better, not mentioning my good old teac vrds10 cd-player! your advice needed! any mods known? -- duesentrieb ------------------------------------------------------------------------ duesentrieb's Profile: http://forums.slimdevices.com/member.php?userid=22181 View this thread: http://forums.slimdevices.com/showthread.php?t=57122 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
