quietdragon;226037 Wrote: > I can imagine how the power supply might have a noticeable effect on the > analog output, and that is what I've thought all the power supply mods > were out to address. > > But in the configuration described by the author, the Squeezebox > digital output is being used. The author is essentially saying that the > stock power supply is insufficient to generate the *digital output* > faithfully, presumably by causing or allowing the introduction of noise > or jitter. (I couldn't tell whether the author was using the coax or > optical digital output.) If you search through lots of other threads here, you'll find that there are some people who swear that changing from stock to linear PSU improves matters on both analogue and digital outputs, while there are others who say it makes no difference in their systems. Meanwhile Sean has explained why the switch from stock to linear PSU ought to make no difference within the Squeezebox itself.
A plausible mechanism to explain these factors is that the stock switching PSU sprays around a lot of RFI (as evidenced by its impact on AM radio), and that perhaps that could be affecting the analogue circuitry in other nearby components (such as preamps, DACs, etc). Those whose systems seem unaffected by a change in PSU might perhaps be using other components that are not vulnerable to this RFI. -- cliveb Transporter -> ATC SCM100A ------------------------------------------------------------------------ cliveb's Profile: http://forums.slimdevices.com/member.php?userid=348 View this thread: http://forums.slimdevices.com/showthread.php?t=38258 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
