nixon76 Posted May 24, 2009 Share Posted May 24, 2009 Saw the latest Stereophile today and somewhere near the back it had a couple of graphs re the jitter output from a Laptop (I think via USB?) - one when running under battery power, and one with the laptops mains power supply plugged in. Needless to say, the difference was night and day - graph wise that is. Under battery things looked Ok, but under mains it looked like an earthquake hit. Are there any laptop owners out there* you can confirm/deny any audible difference when flipping between battery and wall power? Would it follow that the mains power supply for my 'desktop' PC would be causing similar issues? Does this mean a battery powered laptop is the ultimate music server? Interesting stuff. * using the laptop as a music server and outputting via digital to a DAC etc. Link to comment Share on other sites More sharing options...
Mevunky Posted May 24, 2009 Share Posted May 24, 2009 A laptop PSU would be fairly inferior to a high quality (note high quality, not some standard rubbish PSU found in an everyday computer) desktop PSU. So upgrading your PSU in your desktop PC would probably help... Link to comment Share on other sites More sharing options...
wrecker Posted May 24, 2009 Share Posted May 24, 2009 you pays you money you takes your chance, Digitilitis sux!!!!!!!!!! Link to comment Share on other sites More sharing options...
diwander Posted May 24, 2009 Share Posted May 24, 2009 wrecker;92300 wrote: you pays you money you takes your chance, Digitilitis sux!!!!!!!!!! Anyone able to translate that? :confused: Link to comment Share on other sites More sharing options...
Antipodes1553552706 Posted May 24, 2009 Share Posted May 24, 2009 Have a read at Empirical Audio. Note that they recommend using a laptop, but it may be due to the ability to dedicate the USB Bus to just the outboard USB to SPDIF box, as there is no need for any other USB device to be connected. Link to comment Share on other sites More sharing options...
tanman_sg Posted May 24, 2009 Share Posted May 24, 2009 There are big differences with various machines, with ac adapter in and out, but only with analog outputs... digital? I'm not so sure, perhaps. Link to comment Share on other sites More sharing options...
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