bahnsah Wrote: > So, I'm going to ask my question of the electrical engineer/audiophile > types out there: Does a linear regulated power supply (vs. a > switching-type, as included with the SB) affect the sound quality of > the digital-out, the analog-out, or both?
The analog circuits in the SB3 are powered from a DC-DC switching converter on the display board inside the unit. Eliminating the external switching supply does not eliminate the internal one, so it seems very unlikely that changing the power supply will have any audible effect on the SB3 via the analog output. There may be some effect on jitter in the digital output (and therefore possibly in the analog output as well), but jitter is one of those things that golden ears claim to hear that "the rest of us" can't. Jitter is a convenient place to lay blame for audible differences between digital sources because almost no one can measure it. Any power supply swap effect on jitter should be easily measureable, but no one seems to have a jitter test set at their disposal, so the wild speculation continues... So the answer to your question is maybe. A lot of people claim to hear a difference (for some reason it is always an improvement) when they switch to a linear regulated supply. Either they are right or they are deluded. Take your pick. I didn't hear any difference so I went back to the stock power supply (it's much smaller and neater). TD -- tyler_durden ------------------------------------------------------------------------ tyler_durden's Profile: http://forums.slimdevices.com/member.php?userid=2701 View this thread: http://forums.slimdevices.com/showthread.php?t=20844 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
