P Floding;175717 Wrote: > The display noise (if it's there) would be a product of the display > circuit (power to the display, digital drivers, the actual display > itself, etc). I don't see that an external power supply necessarily can > do anything to affect that.
But you do see how it can affect music playback? > > When it comes to judging sound quality from a component's noise floor I > don't get what the point would be in that? If, for example, noise > introduces jitter in the D/A, it won't show up when the D/A isn't doing > anything. Furthermore the D/A will not sound "noisy" -it will just sound > "bad". That is the nature of may problems in audio reproduction -they > are not easily identifiable as "noise" freestanding from any audio > signals. (Especially not by ear.) If the PS induces jitter in the D/A it's because there are some stray fields around which cause noise in the DAC. In that case they will also induce noise in the analogue out, and when you amplify it you should be able to hear it as increased noise floor or possibly a hum or tone. It's significant that Tom hears a lower noise floor with the linear supply - that's the first concrete piece of evidence I've heard that this upgrade does anything. In any case it would be quite easy (with the right equipment) to measure whether or not SB jitter is affected by using a linear PS. Has anyone done that? -- opaqueice ------------------------------------------------------------------------ opaqueice's Profile: http://forums.slimdevices.com/member.php?userid=4234 View this thread: http://forums.slimdevices.com/showthread.php?t=32231 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
